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ADRIEN C., LE LOIREC C., DREUIL S., BORDY J.M., “ A new Monte Carlo tool for organ dose estimation in Computed Tomography “, Radioprotection,  2020, 55(2), 123–134. DOI:10.1051/radiopro/2020006

ALIANE A., AVETISSOV I., BARINOVA O., DE LA BROISE X., DANEVICH F., DUMOULIN L., DUSSOPT L., GIULIANI A., GOUDON V., KIRSANOVA S., LASSERRE T., LOIDL M., DE MARCILLAC P., MARNIEROS S., NONES C., NOVATI V., OLIVIERI E., PODA D., REDON T., RODRIGUES M., TRETYAK V., VIVIER M., WAGNER V., ZOLOTAROVA A., “First test of a Li2WO4(Mo) bolometric detector for the measurement of coherent neutrino-nucleus scattering”, Nuclear Instruments and Methods in Physics Research, 949, Janvier 2020, 162784. DOI:10.1016/j.nima.2019.162784

ANDREO P., BURNS D.T., KAPSCH R.P., MCEWEN M., VATNITSKY S., ANDERSEN C.E., BALLESTER F., BORBINHA J., DELAUNAY F., FRANCESCON P., HANLON M.D., MIRZAKHANIAN L., MUIR B., OJALA J., OLIVER C.P., PIMPINELLA M., PINTO M., DE PREZ L.A., SEUNTJENS J., SOMMIER L., TELES P., TIKKANEN J., VIJANDE J., ZINK K., "Determination of consensus kQ values for megavoltage photon beams for the update of IAEA TRS-398”, Physics in Medicine & Biology, 65, 07 Mai 2020, 09, 095011. DOI: 10.1088/1361-6560/ab807b

APRILE E., 138. other authors , X. Mougeot, “Excess electronic recoil events in XENON1T”, Physical Review, D 102, 12 Octobre 2020, 072004. DOI:10.1103/PhysRevD.102.072004

BOCKHORN L., PAULSEN M., BEYER J., KOSSERT K., LOIDL M., NÄHLE O. J., RANITZSCH P. C.-O., RODRIGUES M., “Improved source/absorber preparation for radionuclide spectrometry based on low-temperature calorimetric detectors”, Journal of Low Temperature Physics, 199, 2020, 298-305. DOI:10.1007/s10909-019-02274-8

BURNS D. T., KESSLER C., PLAGNARD J., “Key comparison BIPM.RI(I)-K3 of the air-kerma standards of the LNE-LNHB, France, and the BIPM in medium-energy x-rays”, Metrologia, 57, 1A, 2020, Tech. Suppl., 06009. DOI:10.1088/0026-1394/57/1A/06009

BURNS D. T., KESSLER C., RAPP B., “Key comparison BIPM.RI(I)-K9 of the absorbed dose to water standards of the LNE-LNHB, France, and the BIPM in medium-energy x-rays”, Metrologia, 57, 1A, 2020, Tech. Suppl. 06008. DOI:10.1088/0026-1394/57/1A/06008

CANTONE M.C., GINJAUME M., MARTIN C.J., HAMADA N ., YOKOYAMA S., BORDY J.M., DAUER L., DURÁN A., JEFFRIES C., HARRIS W., KASHIRINA O., OMANDI KOTENG A., MICHELIN S., SUDCHAI W., RADIOL. PROT J., “Report of IRPA task group on issues and actions taken in response to the change in eye lens dose limit”, Journal of Radiological Protection, 40, Novembre 2020, 4, 1508. DOI:10.1088/1361-6498/abb5ec.

CASSETTE P., ARINC A., CAPOGNI M., DE FELICE P., DUTSOV C., GALEA R., GARCIA-TORAÑO E., KOSSERT K., LIANG J., MITEV K., NÄHLE O., NEDJADI Y., OROPESA VERDECIA P., TAKÁCS M., ZIEMEK T., “Results of the CCRI(II)-K2. H-3 key comparison 2018: Measurement of the activity concentration of a tritiated-water source”, Metrologia, 57, 1A, 2020, Tech. Suppl. 06004. DOI:10.1088/0026-1394/57/1A/06004

COULON R., BRODA R., CASSETTE P., COURTE S., JEROME S., JUDGE S., KOSSERT K., LIU H., MICHOTTE C., NONIS M., “The international reference system for pure beta-emitting radionuclides: an investigation of the reproducibility of the results”, Metrologia, 57, 22 Avril 2020, 035009. DOI:10.1088/1681-7575/ab7e7b

DUMAZERT J., COULON R., CARREL F., SARI A., THIAM C., TROCMÉ M., LECOMTE Q., HAMRITA H., WOO R., LAINÉ F., FRANGVILLE C., BAKKALI M., BOUDERGUI K., KRAUSZ B., PISSARELLO R., DELALEZ R., “Inverse Problem Approach for the underwater localization of Fukushima Daiichi fuel debriwith fission chambers”, Nuclear Instruments and Methods in Physics Research, 954, 21 Février 2020, 161347. DOI: 10.1016/j.nima.2018.10.025

DUTSOV C., CASSETTE P., SABOT B., MITEV K., “Evaluation of the accidental coincidence counting rates in TDCR counting”, Nuclear Instruments and Methods in Physics Research, 977, 11 Octobre 2020, 164292. DOI:10.1016/j.nima.2020.164292

FRETWELL S., LEACH K., BRAY C., KIM G., DILLING J., LENNARZ A., MOUGEOT X., PONCE F., RUIZ C., STACKHOUSE J., FRIEDRICH S., “Direct measurement of the 7Be L/K capture ratio in Ta-based superconducting tunnel junctions”, Physical Review Letters, 125, 14 Juillet 2020, 032701. DOI:10.1103/PhysRevLett.125.032701

HASELSCHWARDT S., KOSTENSALO J., MOUGEOT X., SUHONEN J., “Improved calculations of beta decay backgrounds to new physics in liquid xenon detectors”, Physical Review C, 102, 11 Décembre 2020, 065501. DOI:10.1103/PhysRevC.102.065501

ITO Y., TOCHIO T., YAMASHITA M., FUKUSHIMA S., VLAICU A. M., MARQUES J. P., SAMPAIO J. M., GUERRA M., SANTOS J. P., SYROCKI Ł., SŁABKOWSKA K., WȨDER E., POLASIK M., RZADKIEWICZ J., INDELICATO P., MÉNESGUEN Y., LÉPY M.-C., PARENTE F., “Structure of Kα1,2- and Kβ1,3-emission xray spectra for Se, Y, and Zr”, Physical Review, A102, 20 Novembre 2020, 052820. DOI:10.1103/PhysRevA.102.052820

JEROME S., BOBIN C., CASSETTE P., DERSCH R., GALEA R., LIU H., HONIG A., KEIGHTLEY J., KOSSERT K., LIANG J., MAROULI M., MICHOTTE C., POMMÉ S., RÖTTGER S., WILLIAMS R., ZHANG M. M. M. M., “Half-life determination and comparison of activity standards of Pa-231”, Applied Radiation and Isotopes, 155, Janvier 2020, 108837. DOI:10.1016/j.apradiso.2019.108837

JORDANOV V., CASSETTE P., DUTSOV C., MITEV K., “Development and applications of miniature TDCR acquisition system for in-situ radionuclide metrology”, Nuclear Instruments and Methods in Physics Research, 954, 21 Février 2020, 161202. DOI:10.1016/j.nima.2018.09.037

KELLETT M.A., VIO L., BOBIN C., BRONDEAU L., CARDOT-MARTIN M., ISNARD H., LACOUR D., LÉPY M.-C., LOURENÇO V., MARIE M., THIAM C., “Measurement of the absolute gamma-ray emission intensities from the decay of ¹⁴⁷Nd”, Applied Radiation and Isotopes, 166, Décembre 2020, 109349, 6. DOI:10.1016/j.apradiso.2020.109349

KOSSERT K., SABOT B., CASSETTE P., COULON R., LIU H., “On the photomultiplier-tube asymmetry in TDCR systems”, Applied Radiation and Isotopes, 163, Septembre 2020, 109223. DOI:10.1016/j.apradiso.2020.109223

KOTTLER C., STEURER A., DELAUNAY F., DE POOTER J., GARCÍA MULAS C. and MIHAILESCU L.-C., “Comparison of air kerma and absorbed dose to water standards in Co-60 radiation beams for Radiotherapy”, Metrologia, 57, 2020, 1A, 06013. DOI: 10.1088/0026-1394/57/1A/06013.

LECOMPTE Y., ROSSET M., LOESS J., CHIANEA N., JOURQUIN F., CAZOULAT A., CASSETTE P., “Tritium analysis in urine by the triple-to-double coincidence ratio method with the HIDEX 300 SL liquid scintillation counter”, Radiation Protection Dosimetry, 188, Février 2020, 148-161. DOI:10.1093/rpd/ncz270

LOIDL M., BEYER J., BOCKHORN L., BONAPARTE J., ENSS C., KEMPF S., KOSSERT K., MARIAM R., NÄHLE O., PAULSEN M., RANITZSCH P., RODRIGUES M., WEGNER M., “Precision measurements of beta spectra using metallic magnetic calorimeters within the European metrology research projectMetroBeta”, Journal of Low Temperature Physics, 199, 2020, 451-460. DOI: 10.1007/s10909-020-02398-2

MARIAM R., RODRIGUES M., LOIDL M., “Determination of L-X-ray line emission intensities in the decay of Cm-244 with a metallic magnetic calorimeter”, Nuclear Instruments and Methods in Physics Research, 954, 21 février 2020, 162066. DOI:10.1016/j.nima.2019.04.020

MÉNESGUEN Y., LÉPY M.-C., “Experimental determination of L fluorescence yields of gadolinium”, X-Ray Spectrometry, 49, 22 Avril 2020, 596-602. DOI:10.1002/xrs.3157

MICHOTTE C., RATEL G., COURTE S., KOSSERT K., NÄHLE O., DERSCH R., BRANGER T., BOBIN C., YUNOKI A., SATO Y., “BIPM comparison BIPM.RI(II)-K1.Fe-59 of activity measurements of the radionuclide ⁵⁹Fe for the PTB (Germany), LNE-LNHB (France) and the NMIJ (Japan), and the linked APMP.RI(II)-K2.Fe-59 comparison”, Metrologia 57, 2020, Tech. Suppl. 06003. DOI:10.1088/0026-1394/57/1A/06003

MICHOTTE C., RATEL G., COURTE S., NONIS M., IWAHARA A., DA SILVA C., FITZGERALD R., BERGERON D., CESSNA J., LAUREANO-PEREZ L., PIBIDA L., ZIMMERMAN B.E., ZHANG M., LIANG J., LIU H., JUGET F., NEDJADI Y., FRÉCHOU C., C. BOBIN, E. , DIRICAN A., “BIPM comparison BIPM.RI(II)-K1.Ge-68 of activity measurements of the radionuclide ⁶⁸Ge for the LNMRI/IRD, NIST, NIM, IRA-METAS, LNE-LNHB and the TAEK, and the linked 2015 CCRI(II)-K2.Ge-68 comparison”, Metrologia 57, 2020, 1A, 06014. DOI:10.1088/0026-1394/57/1A/06014

MITEV K., CASSETTE P., PRESSYANOV D., GEORGIEV S., DUTSOV C., MICHIELSEN N., SABOT B.,“Methods for the experimental study of ²²⁰Rn homogeneity in calibration chambers”, Applied Radiation and Isotopes, 165, Novembre 2020, 109259. DOI:10.1016/j.apradiso.2020.109259

NOLOT E., PESSOA W., TORRENGO S., MAZEL Y., BERNARD M., GERGAUD P., MÉNESGUEN Y., LÉPY M. C., EICHERT D., “Grazing-incidence X-ray fluorescence analysis of thin chalcogenide materials deposited on Bragg mirrors”, Spectrochimica Acta B ,168, Juin 2020, 105864. DOI:10.1016/j.sab.2020.105864

OGHEARD F., CASSETTE P., BOUDAOUD A., “Development of an optical measurement method for “sampled” micro-volumes and nano-flow rates”, Flow Measurement and Instrumentation 73, Juin 2020, 101746. DOI:10.1016/j.flowmeasinst.2020.101746

PARADIS H., BOBIN C., LOURENÇO V., THIAM C., FERREUX L., DE VISMES OTT A., THEVENIN M., “Spectral unmixing applied to fast identification of γ-emitting radionuclides using NaI(Tl) detectors”, Applied Radiation and Isotopes, 158, avril 2020, 109068. DOI:10.1016/j.apradiso.2020.109068

PLOMPEN A. J. M., CABELLOS O., DE SAINT JEAN C., FLEMING M., ALGORA A., ANGELONE M., ARCHIER P., BAUGE E., BERSILLON O., BLOKHIN A., CANTARGI F., CHEBBOUBI A., DIEZ C., DUARTE H., DUPONT E., DYRDA J., ERASMUS B., FIORITO L., FISCHER U., FLAMMINI D., FOLIGNO D., GILBERT M. R., GRANADA J. R., HAECK W., HAMBSCH F.-J., HELGESSON P., HILAIRE S., HILL I., HURSIN M., ICHOU R., JACQMIN R., JANSKY B., JOUANNE C., KELLETT M. A., KIM D. H., KIM H. I., KODELI I., KONING A. J., KONOBEYEV A. Y., KOPECKY S., KOS B., KRASA A., LEAL L. C., LECLAIRE N., LECONTE P., LEE Y. O., LEEB H., LITAIZE O., MAJERLE M.,, MARQUEZ DAMIAN J. I., MICHEL-SENDIS F., MILLS R. W., MORILLON B., NOGUERE G., PECCHIA M., PELLONI S., PERESLAVTSEV P., PERRY R. J., ROCHMAN D., RÖHRMOSER A., ROMAIN P., ROMOJARO P., ROUBTSOV D., SAUVAN P., SCHILLEBEECKX P., SCHMIDT K. H., SEROT O., SIMAKOV S., SIRAKOV I., SJÖSTRAND H., STANKOVSKIY A., SUBLET J. C., TAMAGNO P., TRKOV A., VAN DER MARCK S., ÁLVAREZ-VELARDE F., VILLARI R., WARE T. C., YOKOYAMA K., ŽEROVNIK G., “The joint evaluated  fission and fusion nuclear data library, JEFF-3.3”, European Physical Journal, A 56, 14 Juillet 2020, 181. DOI:10.1140/epja/s10050-020-00141-9

RANITZSCH P. C.-O., BEYER J., BOCKHORN L., ENSS C., KOSSERT K., KEMPF S., LOIDL M., R., NÄHLE O. J., PAULSEN M., RODRIGUES M., “MetroMMC: Electron-capture spectrometry with cryogenic calorimeters for science and technology”, Journal of Low Temperature Physics 199, 2020, 441-450. DOI:10.1007/s10909-019-02278-4

RODRIGUES M., LAARRAJ M., LOIDL M.,. NAVICK X.-F, FERLAZZO L., “Preparation of drop-deposited sources in 4 pi absorbers for total decay energy spectrometry”, Journal of Low Temperature Physics, 199, 24 Février 2020, 461-466. DOI:10.1007/s10909-020-02410-9

SABOT B., RODRIGUES M., PIERRE S., “Experimental facility for the production of reference atmosphere of radioactive gases (Rn, Xe, Kr, and H isotopes)”, Applied Radiation and Isotopes, 155, Janvier 2020, 108934. DOI:10.1016/j.apradiso.2019.108934

SARI A., THIAM C., BOUDERGUI K., CARREL F., COULON R., DUMAZERT J., FRANGVILLE C., HAMRITA H., LAINE F., TROCME M., KRAUSZ B., PISSARELLO R., DELALEZ R., Janvier 2020. “Investigation of fission chamber response in the frame of fuel debris localization measurements at Fukushima Daiichi“, Radiation Measurements, 130, Janvier 2020, 106223. DOI: 10.1016/j.radmeas.2019.106223

SIMA O., DE VISMES OTT A., DIAS M., DRYAK P., FERREUX L., GURAU D., HURTADO S., JODLOWSKI P., KARFOPOULOS K., KOSKINAS M., LAUBENSTEIN M., LEE Y., LEPY M., LUCA A., MENEZES M., MOREIRA D., NIKOLIC J., PEYRES V., SAGANOWSKI P., SAVVA M., SEMMLER R., SOLC J., THANH T., TYMINSKA K., TYMINSKI Z., VIDMAR T., VUKANAC I., YUCELH., “Consistency test of coincidence-summing calculation methods for extended sources”, Applied Radiation and Isotopes, 155, Janvier 2020, 108921. DOI:10.1016/j.apradiso.2019.108921

STELIAN TUTA C., AMIOT M-N., SOMMIER L., IOAN R. M., “Alanine pellets comparison using EPR dosimetry in the frame of quality assurance for a Gamma Knife system in Romania. “, Radiation Physics And chemistry, 170, May 2020, 108653. DOI:10.1016/j.radphyschem.2019.108653.

THIAM C., DULIEU C., MOUGEOT X., NAIR A., BOBIN C., KELLETT M. A., “Nuclide++: A C++ module to include DDEP recommended radioactive decay Data in Geant4”, Applied Radiation and Isotopes, 156, Février 2020, 108964. DOI:10.1016/j.apradiso.2019.108964

TORRENGO S., EICHERT D., MAZEL Y., BERNARD M., MENESGUEN Y., LEPY M., NOLOT E., “Quantitative depth-profile analysis of transition metal nitride materials with combined grazing-incidence Xray fluorescence and X-ray reflectometry analysis”, Spectrochimica Acta, 171, Septembre 2020, 105926. DOI:10.1016/j.sab.2020.105926

XU J., DE VISMES OTT A., BOBIN J., BOBIN C., “Sparse spectral unmixing for activity estimation in γ- ray spectrometry applied to environmental measurements”, Applied Radiation and Isotopes, 156, Février 2020, 108903. DOI:10.1016/j.apradiso.2019.108903

TRAN – GIA J., ROBINSON A., BOBIN C., CALVERT N., COLLINS S., DENIS - BACELAR A., FENWICK A., FERREIRA K., FINOCCHIARO D., FIORONI F., GIANOPOULOU K., GRASSI E., HEETUN  W., JEWITT S., KOTZASARLIDOU M., LJUNGBERG M., LOURENCO V., MCGOWAN D., SCUFFHAM J., GLEISNERK. , SOLC J., THIAM C., TIPPING J., WEVRETT J., LASSMANN M., “An international quantitative SPECT/CT imaging exercise for assessment of Ba-133 as surrogate for I-131”. Proceedings of 33rd Annual Congress of the European-Association-of-Nuclear-Medicine, EANM 2020 - Virtual conference, 22-30 Oct. 2020. DOI:10.1007/s00259-020-04988-4

Since the 1970s, the study of the ß shape has been limitedly investigated and there is a growing interest from several users such as ionising radiation metrology, nuclear medicine, nuclear energy, and from fundamental physics. The existing databases are incomplete and lack of accuracy to meet their requirements. In this thesis, a precise ß spectrometer in a quasi-4π geometry is developed based on two silicon detectors in sandwich with a radioactive source. Different source preparation techniques and their influence on the shape ß of the spectrum are studied. The device is characterised using the conversion electron of 109Cd and 207Bi decays, and the ß spectra from 14C, 36Cl, 99Tc and 204Tl decays are studied. An unfolding method is developed to correct the minimised distortions based on PENELOPE Monte Carlo simulations. The response function of the system is built from mono-energetic simulations and the measured spectra are unfolded by applying the matrix inversion method. Finally, the resulting spectra are compared with some high precision measurements performed with Metallic Magnetic Calorimeters, showing excellent agreement in the common energy range.

Beta spectra, Silicon detectors, Ultra-thin radioactive sources, Spectral deconvolution, Experimental shape factor , Carbon-1, Technetium-99, Thallium-204.

Full document : TEL : 2020STRAE014

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LÉPY M-C., BRONDEAU L., BOBIN C., LOURENÇO V., THIAM C., BÉ M.-M. “Determination of X- and gamma-ray emission intensities in the decay of I-131“, Applied Radiation and Isotopes, 109, 2016, 154-159, DOI:10.1016/j.apradiso.2015.11.091

LÉPY M-C., PIERRE S., VAN AMMEL R., MAROULI M., “Photon emission intensities in the decay of U-235“, Applied Radiation and Isotopes, 126, 150-153, 2016, DOI:10.1016/j.apradiso.2016.12.045

LOIDL M. ET AL., “Scintillating bolometers based on ZnMoO4 and Zn100MoO4 crystals to search for 0ν2β decay of 100Mo (LUMINEU project): first tests at the Modane Underground Laboratory“, Nuclear and particle Physics Proceedings Supplement,  273-275, april - june 2016, 1801-1806, DOI: 10.1016/j.nuclphysbps.2015.09.290

MAIRE D., BOSSON G., GUILLAUDIN O., LEBRETON L., MURAZ J.F., QUERRE P., RIFFARD Q. & SANTOS D., “Neutron Energy Reconstruction and Fluence Determination at 27 keV with the LNEIRSN-MIMAC MicroTPC Recoil Detector”, IEEE Transactions on Nuclear Science, 63, June 2016, 1934-1941, DOI:10.1109/TNS.2016.2527819

MAIRE D., BOSSON G., GUILLAUDIN O., LEBRETON L., MURAZ J.F., QUERRE P., RIFFARD Q. & SANTOS D., “Neutron Fluence and Energy Reconstruction with the LNE-IRSN/MIMAC Recoil  Detector MicroTPC at 27 keV”, IEEE Xplore, mai 2016, DOI:10.1109/ANIMMA.2015.7465521

MARSOLAT F., DE MARZI L., PATRIARCA A., NAURAYE C., MOIGNIER C., POMORSKI M., MOIGNAU F., HEINRICH S., TROMSON D., MAZAL A.. “Dosimetric characteristics of four PTW microDiamond detectors in high-energy proton beams“, Physics in Medicine and Biology, 61, 2016, 6413-6429, DOI:10.1088/0031-9155/61/17/6413

MÉNESGUEN Y., “Measurement of partial L fluorescence yields of bismuth using synchrotron radiation”, Applied Radiation Isotopes, 109, 2016, 133-138, DOI : 10.1016/j.apradiso.2015.11.081

MENESGUEN Y., BOYER B., RODRIGUES M., LEPY M.-C. “Measurement of partial L fluorescence yields of bismuth using synchrotron radiation“. Applied Radiation and Isotopes, 109, 2016, 133-138, DOI:10.1016/j.apradiso.2015.11.081

MÉNESGUEN Y., GERLACH M., POLLAKOWSKI B., UNTERUMSBERGER R., HASCHKE M., BECKHOFF B., LÉPY M.-C. “High accuracy experimental determination of copper and zinc mass attenuation coefficients in the 100 eV to 30 keV photon energy range“, Metrologia, 53, 2016, 7-17, DOI:10.1088/0026-1394/53/1/7

MITEV K., CASSETTE P., GEORGIEV S., DIMITROVA I., SABOT B., BOSHKOVA T., TARTÈS I., PRESSYANOV D. “Determination of Rn-222 absorption properties of polycarbonate foils by liquid scintillation counting. Application to Rn-222 measurements“, Applied Radiation and Isotopes, 109, 2016, 270-275 DOI:10.1016/j.apradiso.2015.11.047 

MOUGEOT X., “Systematic comparison of beta spectra calculations using improved analytical screening correction with experimental shape factors”, Applied Radiations and Isotopes, 109, 2016, 177-182, DOI:10.1016/j.apradiso.2015.11.030

NAVICK X.-F., BACHELET C., BOUVILLE D., CORON N., DEVOYON L., GIULIANI A., GRAY D., HERVÉ, HUMBERT V., LEMAITRE M., LOIDL M., DE MARCILLAC P., NONES C., PÉNICHOT Y., REDON, RENÉ A. AND RODRIGUES M., “Development of NTD Ge cryogenic sensors in LUMINEU”, Journal of low Temperature physics, 184, 2016, 292-298, DOI: 10.1007/s10909-016-1572-2 

PEREIRA A., NOMADE S., SHAO Q., BAHAIN J.-J., ARZARELLO M., DOUVILLE E., FALGUÈRES C., FRANK N., GARCIA T., LEMBO G., MUTTILLO B., SCAO V., PERETTO C. “40Ar/39Ar and ESR/U-series dates for Guado San Nicola, Middle Pleistocene key site at the Lower/Middle Palaeolithic transition in Italy“, Quaternary Geochronology, 36, 2016, 67-75, DOI:10.1016/j.quageo.2016.08.005

PERETTO C., ARZARELLO M., BAHAIN J-J., BOULBES N., DOLO J-M., DOUVILLE E., FALGUERES C., FRANK N., GARCIA T., LEMBO G., MOIGNE A.-M., MUTTILLO B., NOMADE S., PEREIRA A., RUFO M. A., SALA B., SHAO Q., THUN HOHENSTEIN U., TESSARI U., TURRINI M. C., VACCARO C. “The Middle Pleistocene site of Guado San Nicola (Monteroduni, Central Italy) on the Lower/Middle Palaeolithic transition“, Quaternary International, 411 Part B, 2016, 301-3015, DOI:10.1016/j.quaint.2015.11.056

PLAGNARD J. “Mesure des spectres de tube à rayons X du LNE-LNHB/LMD par spectrométrie X Measurement of the LNE-LNHB/LMD X-ray tube spectra by X-ray spectrometry“, Revue Française de Métrologie, 43, 2016-3, 37-47, DOI : 10.1051/rfm/2016014

POMME S., STROH H., PAEPEN J., VAN AMMEL R., MAROULI M., ALTZITZOGLOU T., HULT M., KOSSERT K., NÄHLE O., SCHRADER H., JUGET F., BAILAT C., NEDJADI Y., BOCHUD F., BUCHILLIER T., MICHOTTE C., COURTE S., VAN ROOY M. W., VAN STADEN M. J., LUBBE J., SIMPSON B. R. S., FAZIO A., DE FELICE P., JACKSON T. W., VAN WYNGAARDT W. M., REINHARD M. I., GOLYA J., BOURKE S., ROY T., GALEA R., KEIGHTLEY J. D., FERREIRA K. M., COLLINS S. M., CECCATELLI A., UNTERWEGER M., FITZGERALD R., BERGERON D. E., PIBIDA L., VERHEYEN L., BRUGGEMAN M., VODENIK B.,  KORUN M., CHISTE V., AMIOT M-N. “Evidence against solar influence on nuclear decay constants“, Physical Review B, 761, 2016, 281-286, DOI:10.1016/j.physletb.2016.08.038

QUARATI F., DORENBOS P., MOUGEOT X. “Experiments and theory of La-138 radioactive decay“. Applied Radiation and Isotopes, 108, 2016; 30-34, DOI:10.1016/j.apradiso.2015.11.080

RIFFARD Q., SANTOS D., GUILLAUDIN O., BOSSON G., BOURRION O., BOUVIER J., DESCOMBES T., MURAZ J.-F., LEBRETON L., MAIRE D., COLAS P., GIOMATARIS I., BUSTO J., FOUCHEZ D., BRUNNER J. & TAO C., “ MIMAC low energy electron-recoil discrimination measured with fast neutrons “, Journal of Instrumentation,11, august 2016, DOI: 10.1088/1748-0221/11/08/P08011

RODRIGUES M., CASSETTE P., LÉPY M.-C., LOIDL M., MÉNESGUEN Y. “Determination of absolute photon emission intensities of Pb-210“, Applied Radiation and Isotopes, 109, 2016, 500-506, DOI:10.1016/j.apradiso.2015.11.090

RODRIGUES M. AND LOIDL M., “L X-ray satellite effects on the determination of photon emission intensities of radionuclides“, Applied Radiation and Isotopes, 109, 2016, 570-575, DOI:10.1016/j.apradiso.2015.11.100

SABOT B., PIERRE S., CASSETTE P., “Absolute radon 222 activity measurement system at LNE-LNHB“. Nuclear Instruments and Methods in Physics Research A, 118, 2016, 167-174, DOI: 10.1016/j.apradiso.2016.09.009 

SABOT B., CASSETTE P., BONDIGUEL S., MICHIELSEN N., PIERRE S., “Development of a primary thoron activity standard for the calibration of thoron measurement instruments“, Radiation Protection Dosimetry, 167, 2016, 70-74, DOI:10.1093/rpd/ncv221 

SABOT B., PIERRE S., MICHIELSEN N., BONDIGUEL S., CASSETTE P. “A new thoron atmosphere reference measurement system“. Applied Radiation and Isotopes, 109, 2016, 205-209, DOI:10.1016/j.apradiso.2015.11.055

SAUVAGEOT J. L., PIGOT C., DE LA BROÏSE X., CHARVOLIN T., SAHIN H., RODRIGUEZ M., LUGIEZ F., LE COGUIE A., DONG Q., JIN Y.. “Toward large μ-calorimeters x-ray matrices based on metal-insulator sensors and HEMTs/SiGe cryo-electronics“, Space Telescopes and Instrumentation 2016, Ultraviolet to Gamma Ray, 9905, 18 July 2016, DOI: 10.1117/12.2232397

SIMA O., LÉPY M.-C. “Application of GUM Supplement 1 to uncertainty of Monte Carlo computed efficiency in gamma-ray spectrometry“. Applied Radiation and Isotopes, 109, 2016, 493-499, DOI:10.1016/j.apradiso.2015.11.097

THIAM C., BOBIN C., LOURENÇO V., CHISTÉ V., AMIOT M.-N., MOUGEOT X., LACOUR D., RIGOULAY F., FERREUX L.. “Investigation of the response variability of ionization chambers for the standard transfer of SIR-Spheres®“, Applied Radiation and Isotopes, 109, 2016, 231-235, DOI:10.1016/j.apradiso.2015.11.056

TZIKA F., BURDA O., HULT M., ARNOLD D., MARROYO B. C., DRYÁK P., FAZIO A., FERREUX L., GARCÍA-TORAÑO E., JAVORNIK A., KLEMOLA S., LUCA A., MOSER H., NEČEMER M., PEYRÉS V., REIS M., SILVA L., ŠOLC J., SVEC A., TYMINSKI Z., VODENIK B., WÄTJEN U.. “Co-60 in cast steel matrix: A European interlaboratory comparison for the characterisation of new activity standards for calibration of gamma-ray spectrometers in metallurgy“, Applied Radiation and Isotopes, 114, august 2016, 167-172, DOI:10.1016/j.apradiso.2016.05.014

VIDMAR T., CAMP A., HURTADO S., JÄDERSTRÖM H., KASTLANDER J.,. LÉPY M.-C, LUTTER G., RAMEBÄCK H., SIMA O., VARGAS A. “Equivalence of computer codes for calculation of coincidence summing correction factors – Part II“, Applied Radiation and Isotopes, 109, 2016, 482-486 DOI:10.1016/j.apradiso.2015.11.071

SAUVAGEOT J. L., PIGOT C., DE LA BROÏSE X., CHARVOLIN T., SAHIN H., RODRIGUEZ M., LUGIEZ F., LE COGUIE A., DONG Q., JIN Y.. “Toward large μ-calorimeters x-ray matrices based on metal-insulator sensors and HEMTs/SiGe cryo-electronics“, SPIE, Edinburgh, United Kingdom, 26 June - 1 July 2016

DULIEU C., KELLETT M., MOUGEOT X. “Dissemination and visualisation of reference decay data from Decay Data Evaluation Project (DDEP)”, Conference on Nuclear Data for Science and Technology, Bruges, Belgium; 11-16 Sep. 2016

KELLETT M. A., “The Decay Data Evaluation Project (DDEP) and the JEFF-3.3 Radioactive Decay Data Library: Combining International Collaborative Efforts on Evaluated Decay Data”. International Conference on Nuclear Data for Science and Technology, Bruges, Belgium; 11-16 Sep. 2016

MOUGEOT X. “BetaShape: A new code for improved analytical calculations of beta spectra”. International Conference on Nuclear Data for Science and Technology, Bruges, Belgium; 11-16 Sep. 2016

RODRIGUES M., LOIDL M., MARIAM R., “A metallic magnetic calorimeter dedicated to the spectrometry of X-rays emitted by actinides”. International Conference on Nuclear Data for Science and Technology, Bruges, Belgium; 11-16 Sep. 2016

ARMENGAUD E., AUGIER C., BARABASH A., BEEMAN J., BEKKER T., BELLINI F., BENOIT A., BERGE L., BERGMANN T., BILLARD J., BOIKO R., BRONIATOWSKI A., BRUDANIN V., CAMUS P., CAPELLI S., CARDANI L., CASALI N., CAZES A., CHAPELLIER M., CHARLIEUX F., CHERNYAK D., DE COMBARIEU M., CORON N., DANEVICH F., DAFINEI I., DE JESUS M., DEVOYON L., DI DOMIZIO S., DUMOULIN L., EITEL K., ENSS C., FERRONI F., FLEISCHMANN A., FOERSTER N., GASCON J., GASTALDO L., GIRONI L., GIULIANI A., GRIGORIEVA V., GROS M., HEHN L., HERVE S., HUMBERT V., IVANNIKOVA N., IVANOV I., JIN Y., JUILLARD A., KLEIFGES M., KOBYCHEV V., KONOVALOV S., KOSKAS F., KOZLOV V., H. KRAUS, KUDRYAVTSEV V., LAUBENSTEIN M., LE SUEUR H., LOIDL M., MAGNIER P., MAKAROV E., MANCUSO M., DE MARCILLAC P., MARNIEROS S., MARRACHE-KIKUCHI C., NAGORNY S., NAVICK X-F., NIKOLAICHUK M., NONES C., NOVATI V., OLIVIERI E., PAGNANINI L., PARI P., PATTAVINA L., PAVAN M., PAUL B., PENICHOT, PESSINA G., PIPERNO G., PIRRO S., PLANTEVIN O., PODAA D., QUEGUINER E., REDON T., RODRIGUES M., ROZOV S., RUSCONI C., SANGLARD V., SCHÄFFNER K., SCORZA S., SHLEGEL V., SIEBENBORN B., STRAZZER O., TCHERNIAKHOVSKI D., TOMEI C., TRETYAK V., UMATOV V., VAGNERON L., VASILIEV Y., VELAZQUEZ M., VIGNATI M., WEBER M., YAKUSHEV E., ZOLOTAROVA A., “Development of 100Mo-containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search”, European Physical Journal, 77, 785, DOI:10.1140/epjc/s10052-017-5343-2

BOBIN C., THIAM C., CHAUVENET B., “A radionuclide calibrator based on Cherenkov counting for activity measurements of high-energy pure β¯-emitters”, Applied Radiation and Isotopes, 119, 2017, 60-65, DOI:10.1016/j.apradiso.2016.10.018

CACCIA B., LE ROY M., BLIDEANU V., ANDENNA C., ARUN C., CZARNECKI D., EL BARDOUNI T., GSCHWIND R., HUOT N., MARTIN E., ZINK K., ZOUBAIR M., PRICE R., DE CARLAN L., “EURADOS intercomparison exercise on Monte Carlo modelling of a medical linear accelerator”, Annali dell'Istituto Superiore Di Sanita, 53, 2017, 314-321, DOI:10.4415/ANN_17_04_07

CASSETTE P., NOTARI F., LÉPY M-C, CAPLAN C., PIERRE S., HAINSCHWANG T., FRITSCH E., “Residual radioactivity of treated green diamonds”, Applied Radiation and Isotopes, 126, 2017, 66-72, DOI:10.1016/j.apradiso.2017.01.026

CHAUVENET B., BOBIN C., BOUCHARD J., “A general dead-time correction method based on live-time stamping. Application to the measurement of short-lived radionuclides”, Applied Radiation and Isotopes, 130, 2017, 238-244, DOI:10.1016/j.apradiso.2017.10.013

DIONI L., GRESSIER V., NARDIN G., JACQMIN R., STOUT B., SUMINI M., “Tests of a solution-grown stilbene scintillator in mono-energetic neutron beams of 565 keV and 5 MeV”, Nuclear Inst. and Methods in Physics Research, A 880, 2017, 210–215

DULIEU C., KELLETT M., MOUGEOT X., “Dissemination and visualisation of reference decay data from Decay Data Evaluation Project (DDEP)”, EPJ Web of Conferences, 146, 2017, 07004, 4, DOI:10.1051/epjconf/201714607004

GARCÍA-TORAÑO E., PEYRES V., BÉ M.-M., DULIEU C., LÉPY M-C, SALVAT F., “Simulation of decay processes and radiation transport times in radioactivity measurements”, Nuclear Instruments and Methods in Physics Research, B 396,2017,  43-49, DOI:10.1016/j.nimb.2017.02.002

HAN F., BAHAIN J-J., DENG C., BOËDA É., HOU Y., WEI G., HUANG W., GARCIA T., SHAO Q., HE C., FALGUÈRES C., VOINCHET P., YIN G., “The earliest evidence of hominid settlement in China: Combined electron spin resonance and uranium series (ESR/U-series) dating of mammalian fossil teeth from Longgupo cave”, Quaternary International, 434, 2017, 75-83, DOI:10.1016/j.quaint.2015.02.025

KELLETT M. A., “The Decay Data Evaluation Project (DDEP) and the JEFF-3.3 Radioactive Decay Data Library: Combining International Collaborative Efforts on Evaluated Decay Data”, EPJ Web of Conferences, 146, 2017, 02009, 6, DOI:10.1051/epjconf/201714602009

LÉPY M.-C., PEARCE A., SIMA O., “Uncertainties in gamma-ray spectrometry [Corrigendum]”, Metrologia, 54, 2017, DOI:10.1088/1681-7575/aa853b

LÉPY M-C., PIERRE S., “Photon emission intensities in the decay of U-235”, Applied Radiation and Isotopes, 126, 2017, 150-153, DOI:10.1016/j.apradiso.2016.12.045

MARINGER F. J., BAUMGARTNER A., CARDELLINI F., CASSETTE P., CRESPO T., JULIAN DEAN T., HANNAH WIEDNER T., HŮLKA J., HULT M., JEROME S., KABRT F., KOVÁŘ P., LARIJANI C., LUTTER G., MAROULI M., MAURING A., MAZÁNOVÁ M., MICHALIK B., MICHIELSEN N., PEYRES V., PIERRE S., PÖLLÄNEN R., POMMÉ S., REIS M., STIETKA M., SZÜCS L., VODENIK B., “Advancements in NORM metrology – Results and impact of the European joint research project MetroNORM”, Applied Radiation and Isotopes; 126, 2017, 273-278, DOI:10.1016/j.apradiso.2017.02.040

MÉNESGUEN Y., BOYER B., ROTELLA H., LUBECK J., WESER J., BECKHOFF B., GRÖTZSCH D., KANNGIEßSER B., NOVIKOVA A., NOLOT E., LÉPY M-C., “CASTOR, a new instrument for combined XRR-GIXRF analysis at SOLEIL”, X-Ray Spectrometry, 46, 2017, 303-308, DOI:10.1002/xrs.2742

MITEV K., CASSETTE P., JORDANOV V., LIU H., DUTSOV C., “Design and performance of a miniature TDCR counting system”, Journal of Radioanalytical and Nuclear Chemistry, 314, 2017, 583-589, DOI:10.1007/s10967-017-5451-3

MOIGNIER C., TROMSON D., MARSOLAT F., DE MARZI L., GARCÍA HERNÁNDEZ J. C., AGELOU M., POMORSKI M., WOO R., BOURBOTTE J-M., MOIGNAU F., MAZAL A., LAZARO D  “Development of a synthetic single crystal diamond dosimeter for dose measurement of clinical proton beams”, Physics in Medicine and Biology,;62, June 2017, 13, 5417-5439, DOI: 10.1088/1361-6560/aa70cf

MOUGEOT X., “BetaShape: A new code for improved analytical calculations of beta spectra”, EPJ Web of Conferences, 146, 2017, 12015, 4, DOI:10.1051/epjconf/201714612015

RIFFAUD J., LÉPY M-C., MÉNESGUEN Y., NOVIKOVA A., “Measurement of K fluorescence yields of niobium and rhodium using monochromatic radiation”, X-Ray Spectrometry, 46, 2017, 341-346 DOI:10.1002/xrs.2757

RODRIGUES M., LOIDL M., MARIAM R., “A metallic magnetic calorimeter dedicated to the spectrometry of X-rays emitted by actinides”, EPJ Web of Conferences, 146, 2017, 10012, 4,. DOI:10.1051/epjconf/201714610012

ROTELLA H., B. CABY, Y. MÉNESGUEN, Y. MAZEL, A. VALLA, D. INGERLE, B. DETLEFS, M.-C. LÉPY, A. NOVIKOVA, G. RODRIGUEZ, C. STRELI, E. NOLOT, “Elemental depth profiling in transparent conducting oxide thin film by X-ray reflectivity and grazing incidence X-ray fluorescence combined analysis”, Spectrochimica Acta Part B, 135, 22-28, DOI:10.1016/j.sab.2017.06.011

TAMPON B., SANTOS D., GUILLAUDIN O., MURAZ J.-F., LEBRETON L., VINCHON T., QUERRE P., “Ionization Quenching Factor measurement of 1 keV to 25 keV protons in Isobutane gas mixture”, EPJ Web of Conferences, 153, 2017, 01014

THIAM C., BOBIN C., BOUCHARD J., “Adaptation of PTB’s analytical modelling for TDCR–Cherenkov activity measurements at LNHB”, Journal of Radioanalytical and Nuclear Chemistry, 314, 2017, 591-597, DOI:10.1007/s10967-017-5381-0

KELLETT M. A., DULIEU C., MOUGEOT X., “The use of recommended decay data from the DDEP for activity determinations using LSC”, 23rd International Conference on Advances in Liquid Scintillation Spectrometry, Copenhagen, Denmark; 1-5 May 2017

BOBIN C., THIAM C., BOUCHARD J., “Standardization of 68Ge/68Ga using the 4pi beta gamma coincidence method based on Cherenkov counting”, 21st International Conference on Radionuclide Metrology and its Applications; Buenos Aires, Argentina; 15-19 May 2017

KOSSERT K., MARGANIEC-GAŁĄZKA J., MOUGEOT X., NÄHLE O., “Activity determination of 60Co and the importance of its beta spectrum”, 21st International Conference on Radionuclide Metrology and its Applications, Buenos Aires, Argentina; 15-19 May 2017

LÉPY M.-C., MÉNESGUEN Y., RIFFAUD J., “Consistency of photon emission intensities for efficiency calibration of gamma-ray spectrometers in the energy range from 20 keV to 80 keV”, 21st International Conference on Radionuclide Metrology and its Applications, Buenos Aires, Argentina; 15-19 May 2017

LOIDL M., RODRIGUES M., “Direct measurement of the electron capture probability ratios of Fe-55”, 21st International Conference on Radionuclide Metrology and its Applications, Buenos Aires, Argentina; 15-19 May 2017

MOUGEOT X., “A new code for improved calculations of electron capture transitions”, 21st International Conference on Radionuclide Metrology and its Applications, Buenos Aires, Argentina; 15-19 May 2017

RIFFAUD J., CASSETTE P., LACOUR D., LOURENÇO V., TARTÈS I., KELLETT M., CORBEL M., LÉPY M-C., DOMERGUE C., DESTOUCHES C., CARCREFF H., VIGNEAU O., “Measurement of Rh-103mX-ray emission intensities and evaluation od the decay scheme”, 21st International Conference on Radionuclide Metrology and its Applications, Buenos Aires, Argentina; 15-19 May 2017

BORDY J-M., “Précision sur la méthode d’évaluation de l’équivalent de dose individuel au cristallin, Hp(3), à partir de l’équivalent de dose individuel corps entier, Hp(10)”, Congrés National de la SFRP SFRP 2017; Lille, France; 7-9 Juin 2017

MARIAM R. S., RODRIGUES M., LOIDL M., “Total efficiency calibration of a metallic magnetic calorimeter detector for photon spectrometry below 100 keV”, 17th International Workshop on Low Temperature Detectors, Kurume, Japan; 17-20 July 2017

RODRIGUES M., LOIDL M., MARIAM R., NAVICK X-F., “Development of total decay energy spectrometry of alpha emitters using Metallic Magnetic Calorimeters”, 17th International Workshop on Low Temperature Detectors, Kurume, Japan; 17-20 July 2017

LOIDL M., BEYER J., BOCKHORN L., ENSS C., GYÖRI D., KEMPF S., KOSSERT K., MARIAM R., NÄHLE O., PAULSEN M., RODRIGUES M., SCHMIDT M., “MetroBeta: Beta spectrometry with metallic magnetic calorimeters in the framework of the European Program of Ionizing Radiation Metrology”, 17th International Workshop on Low Temperature Detectors, Kurume, Japan; 17-20 July 2017

NAVICK X.-F., BOUVILLE D., CORON N., GIULIANI A., LOIDL M., DE MARCILLAC P., NONES C., PÉNICHOT Y., REDON T., RODRIGUES M., ZOLOTAROVA A., “NTD-Ge production in the LUMINEU experiment using cryogenic detectors for Rare Events searches and other applications”, 17th International Workshop on Low Temperature Detectors, Kurume, Japan; 17-20 July 2017

BOBIN C., THIAM C., BOUCHARD J., “Standardization of ⁶⁸Ge/⁶⁸Ga using the 4πβ−γ coincidence method based on Cherenkov counting”, Applied Radiation and Isotopes, 134, 2018, 252-256, DOI : 10.1016/j.apradiso.2017.06.044

BORDY J.-M., LE ROY M, "Processus de mesure : Evaluer les incertitudes 20 exemples  - Rayonnement ionisant", CFM-AFNOR : Les Guides techniques du collège Français de Métrologie, 2018, 96-103 & 104-111, ISBN 978-2-12-465685-1.

BORDY J.-M., “New data regarding the lens of the eye (for radiation protection purposes)”, Radiation protection, 187, EU seminar May 2017" Emerging issues with regard to organ doses", 35-43, ISBN 978-92-79-93514-5,DOI :  10.2833/104208.

CASSETTE P., ALTZITZOGLOU T., ANTOHE A., ROSSI M., ARINC A., CAPOGNI M., GALEA R., GUDELIS A., KOSSERT K., LEE K.B., LIANG J., NEDJADI Y., OROPESA VERDECIA P., SHILNIKOVA T., VAN WYNGAARDT W., ZIEMEK T., ZIMMERMAN B., “Results of the CCRI(II)-S12.H-3 supplementary comparison : Comparison of methods for the calculation of the activity and standard uncertainty of a tritiated-water source measured using the LSC-TDCR method”, Applied Radiation and Isotopes, 134, 2018, 257-262, DOI : 10.1016/j.apradiso.2017.07.007.

CESSNA J.T., FITZGERALD R., ZIMMERMAN B.E., LAUREANO-PÉREZ L., BERGERON D.E., VAN WYNGAARDT F., SMITH M., JACKSON T., HOWE B., DA SILVA C.J., IWAHARA A., DA CRUZ P.A.L., ZHANG M., LIU H., LIANG J., FRÉCHOU C., BOBIN C., CASSETTE P., KOSSERT K., NÄHLE O., MARGANIEC-GAŁĄZKA J., JOSEPH L., RAVINDRA A., KULKARNI D.N., YUNOKI A., SATO Y., LEE K.B., LEE J.M., GUNG A, DZIEL T ., L ISTKOWSKA A ., T YMIŃSKI Z ., AHAGIA M . S, A NTOHE A., IOAN M .-R., LUCA A., KRIVOSEK M., OMETAKOVA J., JAVORNIK A., ZALESAKOVA M., GARCÍA-TORAÑO MARTINEZ E., ROTETA M., MEJUTO M., NEDJADI Y., JUGET F., YUAN M. - C., YEH C.Y., YELTEPE E., DIRICAN A., KEIGHTLEY J., PEARCE A., “Results of an international comparison of activity measurements of ⁶⁸Ge”, Applied Radiation and Isotopes, 134, 2018, 385-390, DOI : 10.1016/j.apradiso.2017.10.052.

DUSCIAC D., BORDY J.-M., BLIDEANU V., “Training comparison of the 14RPT04 ABSORB : Absorbed dose in water and air”, INIS, 49, 2018, CEA Report CEA-R-6501.

GARCÍA-TORAÑO E., ALTZITZOGLOU T., AUERBACH P., BÉ M.M., BOBIN C., CASSETTE P., CHARTIER F., DERSCH R., FERNÁNDEZ M., ISNARD H., KOSSERT K., LOURENÇO V., NÄHLE O., NONELL A., PEYRÉS V., POMMÉ S., ROZKOV A., SÁNCHEZ-CABEZUDO A., SOCHOROVÁ J. “The half-life of ¹²⁹I”, Applied Radiation and Isotopes, 140, 2018, 157-162, DOI : 10.1016/j.apradiso.2018.06.007.

HAYEN L., SEVERIJNS N., BODEK K., ROZPEDZIK D., MOUGEOT X., "High precision analytical description of the allowed spectrum shape", Reviews of Modern Physics, 90, 2018, 015008, DOI :  10.1103/RevModPhys.90.015008

HERMANNE A., IGNATYUK A.V., CAPOTE R., CARLSON B.V., ENGLE J.W., KELLETT M.A., KIBÉDI T., KIM G., KONDEV F.G., HUSSAIN M., LEBEDA O., LUCA A., NAGAI Y., NAIK H., NICHOLS A.L., NORTIER F.M., SURYANARAYANA S.V., TAKÁCS S., TÁRKÁNYI F.T., VERPELLI M., “Reference Cross Sections for Charged-particle Monitor Reactions”, Nuclear Data Sheets, 148, 2018, 338-382, DOI : 10.1016/j.nds.2018.02.009.

JEAN-BAPTISTE P., FOURRÉ E., CASSETTE P., “New determination of the ³He mixing ratio in the Earth's lower atmosphere from an international tritium intercomparison exercise”, Applied Geochemistry, 98, 2018, 17-21, DOI : 10.1016/j.apgeochem.2018.09.003.

JORDANOV V., CASSETTE P., DUTSOV CH., MITEV K., “Development and applications of a miniature TDCR acquisition system for in-situ radionuclide metrology”, Nuclear Instruments and Methods A : Accelerators, Spectrometers, Detectors and Associated Equipment, 2018, DOI : 10.1016/j.nima.2018.09.037.

KOSSERT K., MARGANIEC-GAŁĄZKA J., MOUGEOT X., NÄHLE O.J., “Activity determination of 60Co and the importance of its beta spectrum”, Applied Radiation and Isotopes, 134, 2018, 212-218, DOI : 10.1016/j.apradiso.2017.06.015.

LÉPY M.-C., BRONDEAU L., MÉNESGUEN Y., PIERRE S., RIFFAUD J., “Consistency of photon emission intensities for efficiency calibration of gamma-ray spectrometers in the energy range from 20 keV to 80 keV”, Applied Radiation and Isotopes, 134, 2018, 131-136, DOI : 10.1016/j.apradiso.2017.07.006.

MÉNESGUEN Y., LÉPY M.-C., HÖNICKE P., MÜLLER M., UNTERUMSBERGER R., BECKHOFF B., HOSZOWSKA J., DOUSSE J.-C., BŁACHUCKI W., ITO Y., YAMASHITA M., FUKUSHIMA S., “Experimental determination of the x-ray atomic fundamental parameters of nickel”, Metrologia, 55, 2018, 56-66, DOI : 10.1088/1681-7575/aa9b12.

MÉNESGUEN Y., LÉPY M.-C.,   SAMPAIO J M,  MARQUES J P,  PARENTE F,  GUERRA M,  INDELICATO P AND SANTOS  J P, “Experimental and theoretical determination of the L-fluorescence yields of bismuth”, Metrologia, 55, 2018, 621-630, DOI : 10.1088/1681-7575/aad1d6.

MÉNESGUEN Y., LÉPY M.-C.,  SAMPAIO J. M., MARQUES J. P.,  PARENTE F., GUERRA M., INDELICATO P., SANTOS J. P., HÖNICKE P., BECKHOFF B., "A combined experimental and theoretical approach to determine X-ray atomic fundamental quantities of tin”, X-Ray Spectrometry, 47, 2018, 341-351, DOI : 10.1002/xrs.2948.

MÉNESGUEN Y., LÉPY M.-C., BECKHOFF B., “New Measurements of X-ray Fundamental Parameters”, Spectroscopy, 33, 7, 2018, 24-38.

MÉNESGUEN Y., DULIEU C., LÉPY M.-C., “Advances in the measurements of the mass attenuation coefficients”, X-Ray Spectrometry, 2018, DOI : 10.1002/xrs.2991.

MITEV K., CASSETTE P., TARTÈS I., GEORGIEV S., DIMITROVA I., PRESSYANOV D., “Diffusion lengths and partition coefficients of ^131mXe and ⁸⁵Kr in Makrofol N and Makrofol DE polycarbonates”, Applied Radiation and Isotopes, 134, 2018, 269-274, DOI : 10.1016/j.apradiso.2017.07.023.

MOUGEOT X., "Improved calculations of electron capture transitions for decay data and radionuclide metrology", Applied Radiation and Isotopes, 134, 2018, 225-232, DOI : 10.1016/j.apradiso.2017.07.027.

ODZIOMEK M., CHAPUT F., DUJARDIN C., LEROUGE F., CASSETTE P., SITARZ M., AND PAROLA S., “Design and Application of High Optical Quality YAG:Ce Nanocrystal-Loaded Silica Aerogels”, ACS Applied Materials & Interfaces, 10, 2018, 38, DOI: 10.1021/acsami.8b09229.

OTTO T., HERTEL N.E., BARTLETT D.T., BEHRENS R.,. BORDY J.-M, DIETZE G., ENDO A., GUALDRINI G., PELLICCIONI M., “The ICRU proposal for new operational quantities for external radiation”, Radiation Protection Dosimetry, 180, 2018, 10-16, DOI : 10.1093/rpd/ncx243.

PESSOAA W.,  ROULE A., NOLOT E.,  MAZEL Y.,  BERNARD M.,  LÉPY M.-C.,  MÉNESGUEN Y., NOVIKOVA A., GERGAUD P., BRIGIDI F., EICHERTD D., “Grazing incident X-ray fluorescence combined with X-ray reflectometry metrology protocol of telluride-based films using in-lab and synchrotron instruments”, Spectrochimica Acta Part B, 149, 2018, 143-149, DOI : 10.1016/j.sab.2018.07.003.

PIERRE S., SABOT B., CASSETTE P., LIANG J., COURTE S., FERREUX L., RATEL G., “Bias in the measurement of radon gas using ionization chambers : Application to SIR”, Applied Radiation and Isotopes, 134, 2018, 13-17, DOI : 10.1016/j.apradiso.2017.10.040.

PIMPINELLA M., CAPORALI C., GUERRA A. S., SILVI L., DE COSTE V., PETRUCCI A., DELAUNAY F., DUFRENEIX S., GOURIOU J., OSTROWSKY A., RAPP B., BORDY J. M., DAURES J., LE ROY M., SOMMIER L., VERMESSE D., “Feasibility of using a dose-area product ratio as beam quality specifier for photon beams with small field sizes”, Physica Medica, 45, 2018, 106-116, DOI : 10.1016/j.ejmp.2017.12.012.

RIFFAUD J., CASSETTE P., LACOUR D., LOURENÇO V., TARTÈS I., KELLETT M.A., CORBEL M., LÉPY M.-C., DOMERGUE C., DESTOUCHES C., CARCREFF H., VIGNEAU O., “Measurement of absolute K X-Rays emission intensities in the decay of 103m Rh”, Applied Radiation and Isotopes, 134, 2018, 399-405, DOI : 10.1016/j.apradiso.2017.10.003.

PAPAEVANGELOU T. ET AL., “ESS nBLM: Beam Loss Monitors based on Fast Neutron Detection”, 61^e ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Daejeon, Corée du Sud, 17-22 juin 2018, DOI : 10.18429/JACoW-HB2018-THA1WE04.

ABUDRAA A., GOURIOU J., STIEN C., PLAGNARD J., DENOZIÈRE M., ITTI R., CHAUVENET B., AUBINEAU-LANIÈCE I., “Establishment and transfer of a primary dosimetry standard for breast cancer IORT using the INTRABEAM® system”, 2^nd European Congress on Medical Physics, Copenhague, Danemark, 23-25 août 2018.

STIEN C., ABUDRAA A., GOURIOU J., DENOZIÈRE M., PLAGNARD J., ITTI R., CHAUVENET B., AUBINEAU-LANIÈCE I., “Determination of the relative dose distribution around an INTRABEAM electronic brachytherapy source using Fricke gel dosimetry”, 2^nd European Congress on Medical Physics, Copenhague, Danemark, 23-25 août 2018.

SARI A., BOUDERGUI K., CARREL F., COULON R., DUMAZERT J., FRANGVILLE C., HAMRITA H., TROCMÉ M., THIAM C., KRAUSZ B., PISSARELLO R., DELALEZ R., “Localization of fuel debris in damaged nuclear power plants such as Fukushima Daiichi using fission chambers”, 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, Sidney, Australia, 10-17 Novembre 2018.

AMOYAL G., SCHOEPFF V., CARREL F., LOURENCO V., LACOUR D., BRANGER T., “Metrological characterization of the GAMPIX gamma camera”, Nuclear Instruments and Methods in Physics Research A, 944, November 2019, 162568, DOI : 10.1016/j.nima.2019.162568

ANTOHE A., SAHAGIA M., CASSETTE P., LUCA A., IOAN M-R., “Tritium standardization by the LSC-TDCR method and participation at international comparisons”, Romanian Reports in Physics, 71, septembre 2019, 209

BOBIN C., BOUCHARD J., CHISTÉ V., COLLINS S.M., DRYÁK P., FENWICK A., KEIGHTLEY J., LÉPY M.-C., LOURENÇO V., ROBINSON A.P., SOCHOROVÁ J., ŠOLC J., THIAM C.,  “Activity measurements and determination of nuclear decay data of 166Ho in the MRTDosimetry project”, Applied Radiation and Isotopes, 153, 108826, DOI: 10.1016/j.apradiso.2019.108826

COULAUD J., STIEN C., GONNEAU E., FIALLO M., BRUMAS V., SHARROCK P., “A new spectroscopic method for measuring ferric diffusion coefficient in gelatin-based dosimeter gels Biomed.”, Biomedical Physics & Engineering Express, 5, 6, 6 November 2019, 065028.

DELAUNAY F., ANDERSEN C., DE PREZ L., DUANE S., PIMPINELLA M., TELES P., TIKKANEN J., ZINK K., “MV reference dosimetry in TRS-398: State-of-the art and research supporting an updated Code of Practice”, Radiotherapy and Oncology, 133, Avril 2019,  Supplement 1, S117-S118, DOI: 10.1016/S0167-8140(19)30656-5

DUTSOV C., MITEV K., CASSETTE P., JORDANOV V., “Study of two different coincidence counting algorithms in TDCR measurements”, Applied Radiation and Isotopes, 154, December 2019, 108895, DOI : 10.1016/j.apradiso.2019.108895

ENGLE J. W., IGNATYUK A. V., CAPOTE R., CARLSON B. V., HERMANNE A., KELLETT M. A., KIBEDI T., KIM G., KONDEV F. G., HUSSAIN M., LEBEDA O., LUCA A., NAGAI Y., NAIK H., NICHOLS A. L., NORTIER F. M., SURYANARAYANA S. V., TAKACS S., TARKANYI F. T., VERPELLI M., “Recommended nuclear data for the production of selected therapeutic radionuclides”, Nuclear Data Sheets, 155, 56-74, DOI : 10.1016/j.nds.2019.01.003

LÉPY M., THIAM C., ANAGNOSTAKIS M., GALEA R., GURAU D., HURTADO S., KARFOPOULOS K., LIANG J., LIU H., LUCA A., MITSIOS I., POTIRIADIS C., SAVVA M., THANH T., THOMAS V., TOWNSON R., VASILOPOULOU D., ZANG M., “A benchmark for Monte Carlo simulation in gamma-ray spectrometry”, Applied Radiation and Isotopes, 154, 108850, DOI:10.1016/j.apradiso.2019.108850

LOIDL M., BEYER J., BOCKHORN L., ENSS C., KELLETT M. A., KEMPF S., KOSSERT K., MARIAM R., MOUGEOT X., NÄHLE O., RODRIGUES M., SCHMIDT M., “Beta spectrometry with metallic magnetic calorimeters in the framework of the European EMPIR project MetroBeta”, Applied Radiation and Isotopes, 153, 108830, DOI : 10.1016/j.apradiso.2019.108830

MÉNESGUEN Y., DULIEU C., LÉPY M.-C., “Advances in the measurements of the mass attenuation coefficients”, X-Ray Spectrometry, 48, 330-335, DOI: 10.1002/xrs.2991

MÉNESGUEN Y., LÉPY M.-C., ITO Y., YAMASHITA M., FUKUSHIMA S., POLASIK M., SŁABKOWSKA K., SYROCKI Ł., WȨDER E., INDELICATO P., MARQUES J., SAMPAIO J., GUERRA M., PARENTE F., SANTOS J., “Precise x-ray energies of gadolinium determined by a combined experimental and theoretical approach”, Journal of Quantitative Spectroscopy and Radiative Transfer, 236, October 2019, 106585, DOI : 10.1016/j.jqsrt.2019.106585

MOUGEOT X., “Towards high-precision calculation of electron capture decays”, Applied Radiation and Isotopes, 154, 108884, DOI : 10.1016/j.apradiso.2019.108884

PAULSEN M., BEYER J., BOCKHORN L., ENSS C., KEMPF S., KOSSERT K., M. LOIDL, R. MARIAM, O. NÄHLE, P. RANITZSCH, M. RODRIGUES, “Development of a beta spectrometry setup using metallic magnetic calorimeters”, Journal of Instrumentation, 14, August 2019, P08012, DOI: 10.1088/1748-0221/14/08/P08012

PIERRE S., THIAM C., CASSETTE P., MOUGEOT X., SINGH A. “Simulation of the response of an ionization chamber to 214Bi emission. Application to the measurement of 220Rn”, Applied Radiation and Isotopes, 154, December 2019, 108886, DOI: 10.1016/j.apradiso.2019.108886

SANDLER R., BOLLEN G., DISSANAYAKE J., EIBACH M., GULYUZ K., HAMAKER A., IZZO C., MOUGEOT X., PUENTES D., QUARATI F. G. A., REDSHAW M., RINGLE R., SCHWARZ S., YANDOW I., “Direct determination of the 138La beta-decay Q-value using Penning trap mass spectrometry”, Physical Review C 100, 11 July 2019,  014308, DOI: 10.1103/PhysRevC.100.014308

SINGH A., MOUGEOT X., SABOT B., LACOUR D., NOURREDDINE A.-M., “Beta spectrum measurements using a quasi-4 pi detection system based on Si detectors”, Applied Radiation and Isotopes, 154, December 2019, 108897, 4, DOI : 10.1016/j.apradiso.2019.108897 

SINGH B., BASUNIA S., MARTIN M., MCCUTCHAN E., BALA I., CABALLERO-FOLCH R., CANAVAN R., CHAKRABARTI R., CHEKHOVSKA A., GRINDER M., KAIM S., KANJILAL D., D. KASPEROVYCH, KOBRA M., KOURA H., NANDI S., OLACEL A., SINGH A., TEE B., “Nuclear Data Sheets for A=218”, Nuclear Data Sheets, 160, September - October 2019,  405-471, DOI : 10.1016/j.nds.2019.100524

TARKANYI F. T., IGNATYUK A. V., HERMANNE A., CAPOTE R., CARLSON B. V., ENGLE J. W., KELLETT M. A., KIBEDI T., KIM G. N., KONDEV F. G., HUSSAIN M., LEBEDA O., LUCA A., NAGAI Y., NAIK H., NICHOLS A. L., NORTIER F. M., SURYANARAYANA S. V., TAKACS S., VERPELLI M., “Recommended nuclear data for medical radioisotope production: diagnostic gamma emitter”, Journal of Radioanalytical and Nuclear Chemistry 319, 2019, 487-531, DOI : 10.1007/s10967-018-6142-4

TARKANYI F. T., IGNATYUK A. V., HERMANNE A., CAPOTE R., CARLSON B. V., ENGLE J. W., KELLETT M. A., KIBEDI T., KIM G. N., KONDEV F. G., HUSSAIN M., LEBEDA O., LUCA A., NAGAI Y., NAIK H., NICHOLS A. L., NORTIER F. M., SURYANARAYANA S. V., TAKACS S., VERPELLI M., “Recommended nuclear data for medical radioisotope production: diagnostic positron emitters”, Journal of Radioanalytical and Nuclear Chemistry, 319, 2019, 533-666, DOI : 10.1007/s10967-018-6380-5

VAN AMMEL R., STROH H., TZIKA F., MARISSENS G., BRUGGEMAN M., VERHEYEN L., SABOT B., MAURING A., TARJAN S., MCGINNITY P., OSVATH I., FUJAK M., PETERSON J., ZORKO B., PETROVIČ T., GLAVIČ-CINDRO D., “The certification of the massic activities of the radionuclide 60Co in stainless steel disks EURM 800 and 801”, JRC technical report Publications Office of the European Union, EUR 29790 EN, ISBN 978-92-76-08764-9, ISSN 1831-9424, JRC116895, DOI: 10.2760/90491

DELAUNAY F., “MV reference dosimetry in TRS-398: State-of-the art and research supporting an updated Code of Practice”, 38th Annual Congress of European Society for Therapeutic Radiology and Oncology - ESTRO38, Milan, Italie, 28 avril 2019.

JURCZAK J., RAPP B., DUFRENEIX S., GOURIOU J., DELAUNAY F., BORDY J-M, « Développement d’une nouvelle grandeur de référence pour les traitements en conditions stéréotaxiques: le produit dose-surface », 58èmes Journées SFPM, Angers, France, 5-7 juin 2019. 

LACOSTE V., PETIT M., “Neutron spectrometry at low fluence rates behing concrete shielding - Comparison with Monte-Carlo simulations”, ANNIMA 2019, Portoroz, Slovenie, 17-21 June 2019. 

DI CHICCO A., PETIT M., JACQMIN R., GRESSIER V., STOUT B., “Investigation of the Neutron-Gamma Ray Discrimination Performance of Different Organic Scintillators at the AMANDE Facility”, ANNIMA 2019, Portoroz, Slovenie, 17-21 June 2019.

DELAUNAY F., C. ANDERSEN, L. DE PREZ, S. DUANE, M. PIMPINELLA, P. TELES, J. TIKKANEN, K. ZINK, “Experimental MV kQ, Q0 from RTNORM EMPIR project”, International Symposium on Standards, Applications and Quality Assurance in Medical Radiation Dosimetry IDOS, Vienne, Autriche, 19-21 juin 2019.

BORDY JM., "Grandeurs opérationnelles pour la radioprotection externe: proposition du GT 26 ICRU/ICRP“, Congrès national de radioprotection de la société française de la radioprotection - SFRP, La Rochelle, France, 19-20 juin 2019.

DUSCIAC D., BORDY J.M., BLIDEANU V., VOJNIC KORTMIS M., CENUSA C., CELAREL A., CALDEIRA M. C., CARDOSO J. V., ALVES J. G., MIHAILESCU L.C., SOCHOR V., ZIVANOVIC M., KRZANOVIC N., DERLACINSKI M., MICHALIK L., MAKARIC V., SABETA A., « Exercice d’inter-comparaison en kerma dans l’air dans le cadre du projet européen ABSORB », Congrès national de radioprotection de la société française de la radioprotection - SFRP, La Rochelle, France, 19-20 juin 2019.

THIAM C., CASSETTE P., SABOT B., “New neutron source calibration service at the Laboratoire National Henri Becquerel (LNE-LNHB)”, Congrès international de Métrologie (CIM 2019), Paris, France, 24-26 sep. 2019.

BORDY J.M., BLIDEANU V., CHAPON A., DUPONT G., DUSCIAC D., GOURIOU J., LAINE F., LE ROY M., “Primary reference in terms of air kerma for ionizing radiation fields produced by an electrostatic electron accelerator”, Congrès international de Métrologie (CIM 2019), Paris, France, 24-26 sep. 2019.

Isotopic analysis of actinides is necessary for fuel cycle management, non-proliferation treaty control or environmental monitoring. The accuracy of these analyses may be limited by the performance of the detector used but also by the uncertainties associated with the emission intensities available in the nuclear data tables. The disintegration of actinides is generally followed by intense X-ray and gamma photon emissions in the energy range below 100 keV. Their detection may be of particular interest for actinide analysis. However, conventional measurement techniques do not allow to properly separate the lines of the considered emissions. This thesis was devoted to the measurement of intensities using a cryogenic detector. The latter is based on a magnetic metallic calorimeter (MMC) that measures energy deposition as a temperature rise. The MMC, called SMX3, has four pixels and is specifically designed for high resolution X-ray and gamma spectrometry in the energy range below 100 keV to measure actinide emission intensities. In addition to the high resolution provided by SMX3 through its operating principle, this detector has a constant detection efficiency and almost equal to 100% over the energy range below 25 keV, where actinides' XL rays are emitted.The SMX3 yield curve was calibrated by a method that consists of a single standard source measurement of Am-241 combined with Monte Carlo simulations. The three actinides Pu-238, Pu-239, and Cm-244 were measured to provide absolute and relative intensities of Li-Yj emissions (with Y=L,M,N,O,P i=1,2,3 and j=1..7). Thanks to the very high energy resolution of the MMC, the individual XL lines of actinides can be separated. Satellite lines are also detected, their intensities relative to the diagram lines depend on the isotope according to the fundamental atomic parameters. The intensities of the individual XL lines could be determined for the first time, especially for the transitions L₁-L₃. In addition, the intensities of the XLi regions (i=1,2,3) were established. The intensities of the overall XL and XL groups are compared with the calculations and experimental data available in the literature.

Full document:

https://www.theses.fr/2019SACLS091.

X and gamma rays spectroscopy, Actinide, Metallic magnetic calorimeter

In France, the references associated to the neutron fluence and the deriva-ted dosimetric quantities are under the responsability of the micro-irradiation and neutronmetrology and dosimetry laboratory (LMDN)of IRSN. In order to improve the definition ofreferences in fluence and energy of the monoenergetic neutron fields, produced at AMANDEfacility, a micro-TPC gaseous detector, called LNE-IRSN-MIMAC, is developping in collabo-ration with LPSC.In a previous work, the detector was qualified for neutron fields in the energy rangebetween 27 keV and 565 keV. The objective of the present work is to extend the range of theμTPC above 1 MeV. The choice of the gas, the development of an analysis method and thedetector characterization allowed to validate the detector capacity to perform measurements inmonoenergetic neutron fields ranging from 250 keV up to 6,5 MeV with a relative uncertaintyof 3% and 2,5% respectively in energy and fluence.

Full document:

https://www.theses.fr/2018GREAY083

Elastic scattering, Time projection chamber, Neutron spectrometer, Primary standard

Chalcogenide materials are compounds based on S, Se, and Te elements from group VI of the periodic table. They are receiving an extensive interest not only for applications in resistive memories (PCRAM and CBRAM), photonics and photovoltaics but also in the development of new 2-D materials (e.g. spintronics applications). Chalcogenide materials are already present in the semiconductor roadmaps and it is already replacing flash memories (e.g. phase change material and ovonic threshold switch in new random access memory). For the next technology nodes, chalcogenide properties can be scaled by tuning the chemical composition or by reducing the film thickness. Nonetheless, it also means that their properties become more tightly influenced by the chemical composition, the surface/interface effects and the depth-profile composition. Hence, dedicated metrology protocols must be developed, first to assist the optimization of chalcogenide materials processes in cleanroom environment, then to allow non-destructive process monitoring with industry-driven uncertainties. In this PhD thesis, we developed metrology protocols based on X-ray techniques, dedicated to thin chalcogenides materials and fully compatible with inline monitoring. First, we used quasi in-situ X-ray Photoelectron Spectroscopy (XPS) to characterize the surface of Ge, Sb, Te thin materials and compounds, and to study the composition-dependent evolution of the surface after air break and ageing. The efficiency of in situ capping strategies to protect Te-based and Se-based thin layered materials from ageing was also investigated. Secondly, we demonstrated the ability of improved metrology strategies based on in-line Wavelength Dispersive X-ray Fluorescence (WDXRF) and XPS to accurately quantify the chemical composition of Ge-Sb-Te compounds (from 1 to 200 nm) and ultrathin 2D transition metal dichalcogenides (MoS₂, WS₂). Combined WDXRF/XPS analysis was used to determine refined values of composition-dependent relative sensitivity factors for Te4d, Sb4d and Ge3d that allow for XPS-based metrology of PCRAM materials with mastered accuracy. We pointed the need for in-depth study of the significant matrix effects that alter the ability of WDXRF to quantify Nitrogen in Ge-Sb-Te materials: ion beam analysis was carefully investigated as possible input for WDXRF calibration, and a WDXRF protocol was established for inline monitoring of N-doped Ge-Sb-Te films in a specific process window. Finally, we investigated two ways to non-destructively characterize the in-depth chemical distribution in thin chalcogenide films: we demonstrated that the combination of XRF in grazing incidence geometry (GIXRF) and X-ray reflectometry (XRR) was able to unambiguously reveal small process differences along with process-induced diffusion in 10 nm-thick stackings. We showed that the use of multilayered substrate instead of silicon allowed fine-tuning of the depth-dependent X-ray standing wave field, resulting in improved sensitivity of XRR/GIXRF strategies. We also developed an angle-resolved XPS protocol for the evaluation of the first deposition steps of GeTe and Ge₂Sb₂Te₅ films, revealing the process-dependent elemental distribution as a function of the film growth. Therefore, in this work we not only elaborated advanced metrology protocols for the development of new chalcogenide films but also metrological solutions for the next technology nodes (28 nm and below), since current in-line metrology tools reach their detection limits.

Full document:

https://www.theses.fr/2018SACLS330

Chalcogenides, X-rays metrology, XRF, XPS, Memories,2-D materials.

Reactor dosimetry is used to determine the neutron fluence during an irradiation and to characterize its spectrum (neutron energy distribution). This technique is based on the analysis of the activity of irradiated dosimeters, made of pure metals or alloys. The activity measurement of these samples is performed by gamma and/or X-ray spectrometry and is currently based on specific standard dosimeters, validated for the measurement conditions. The goal of the thesis is to avoid this calibration step and to be able to directly measure the activity of the sample. The study focused specifically on niobium and rhodium dosimeters which are used to characterize neutrons in the energy range around 1 MeV. Their activation produces 93mNb and 103mRh, respectively. These two radionuclides decay through an isomeric gamma transition, emitting mainly K X-rays with energies around 20 keV, on which the spectrometric activity measurement is based. However, owing to their low energy, these X-rays are particularly difficult to measure accurately. The various parameters required to determine the activity of the dosimeters, with a relative standard uncertainty of around 2%, were studied in detail. The work initially focused on the calibration of hyper-pure germanium (HPGe) detectors in the energy range between 11 keV and 150 keV. This is a crucial step in determining the activity of a radionuclide sample and is difficult to achieve in the energy range of interest. The experimental approach, using standard point sources, was coupled with semi-empirical modelling and simulations of radiation-matter interactions by Monte Carlo methods (PENELOPE and GEANT4). These methods have made it possible to study in detail the photons scattering at low energy, around 20 keV, which interferes with the full-energy peaks in the spectra and disturbs their analysis. In a second step, Monte Carlo simulations were used to calculate the correction factors needed to derive the dosimeter activity: self-absorption of photons in the dosimeter material and the geometry change between the calibration conditions (point source) and the measurement conditions (solid metal sample). The fluorescence induced by impurities (in the dosimeter material or created during irradiation in the reactor) was studied and the correction factors to be applied were established. Radioactive decay data, particularly photon emission intensities, are the main components of the uncertainty in dosimeter activity results. X-ray emission intensities are rarely measured experimentally and most often their values are calculated from fundamental parameters i.e. internal conversion coefficients and fluorescence yields, and a balanced decay scheme, of the nuclide. Several experiments were designed to provide new experimental data. The mass attenuation coefficients and K fluorescence yields of niobium and rhodium were determined using a monochromatic photon beam at the SOLEIL synchrotron facility. The photon emission intensities of 103mRh were measured using two approaches, one from rhodium activated at the ISIS reactor and the other from a solution of palladium 103. All these new values are compared with previously published data and the decay scheme of 103mRh is discussed.

Full document: https://www.theses.fr/2018SACLS225

Radioactivity measurement, X and gamma-Ray spectrometry, Reactor dosimetry, Nb-93m, Rh-103m, Monte Carlo Simulation.