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Precision efficiency calibration of a high-purity co-axial germanium detector at low energies

hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorBLANK, B.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorASCHER, P.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGERBAUX, M.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGIOVINAZZO, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGREVY, S.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorKURTUKIAN NIETO, T.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorVERSTEEGEN, M.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorTHOMAS, J.C.
dc.date.issued2020
dc.description.abstractEnFollowing work done in the energy region above 100 keV, the high-precision calibration of a co-axial high-purity germanium detector has been continued in the energy region below 100 keV. Some of the previous measurements and Monte-Carlo simulations have been repeated with higher statistics and a new source measurement with   169 Yb has been added. For the energy range from 40 keV to 100 keV, an absolute precision for the detection efficiency of ± 0.2% has been reached, as previously obtained for energies above 100 keV. The low-energy behaviour of the germanium detector was further scrutinised by studying the germanium X-ray escape probability for the detection of low-energy photons. In addition, one experimental point, a γ  ray at 2168 keV from the decay of   38 K, has been included for the total-to-peak ratios agreeing well with simulations. The same γ ray was also added for the single- and double-escape probabilities. Finally, the long term stability of the efficiency of the germanium detector was investigated by regularly measuring the full-energy peak efficiency with a precisely calibrated   60 Co source and found to be perfectly stable over a period of 10 years.
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.enGamma-ray spectroscopy
dc.subject.enGermanium detector
dc.subject.enMonte-Carlo simulations
dc.subject.ensemiconductor detector: germanium
dc.subject.ennumerical calculations: Monte Carlo
dc.subject.enefficiency
dc.subject.encalibration
dc.subject.engamma ray: irradiation
dc.subject.enstability
dc.title.enPrecision efficiency calibration of a high-purity co-axial germanium detector at low energies
dc.typeArticle de revue
dc.identifier.doi10.1016/j.nima.2020.164631
dc.subject.halPhysique [physics]/Physique [physics]/Instrumentations et Détecteurs [physics.ins-det]
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.identifier.arxiv2004.03464
bordeaux.journalNucl.Instrum.Meth.A
bordeaux.page164631
bordeaux.volume984
bordeaux.peerReviewedoui
hal.identifierhal-02557704
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02557704v1
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