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210Pbactivity by detection of bremsstrahlung in 210Bi β-decay

A. Nachab 1 Ph. Hubert 2
IPHC - Institut Pluridisciplinaire Hubert Curien
2 NEMO - Neutrino et Faibles Radioactivités
CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
Abstract : A method for the determination of the 210Pbactivity by HPGe spectrometry is proposed, consisting of measuring the bremsstrahlung generated in a sample by 210Bi β-emission (1.16 MeV). The detection efficiency is evaluated by GEANT3 simulation and is compared with experiment. A detection limit of 600 mBq was obtained. This technique has been used to select low background detector materials and lead shielding.
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Submitted on : Thursday, April 12, 2012 - 12:00:30 PM
Last modification on : Friday, June 5, 2020 - 10:52:22 AM




A. Nachab, Ph. Hubert. 210Pbactivity by detection of bremsstrahlung in 210Bi β-decay. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2012, 274, pp.188-190. ⟨10.1016/j.nimb.2011.11.020⟩. ⟨in2p3-00687090⟩



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