Monte Carlo simulation of background components in low level Germanium spectrometry.

Nicola Ackermann, Hannes Bonet, Christian Buck, Oleg Chkvorets, Janina Hakenmüller, Gerd Heusser,Matthias Laubenstein,Manfred Lindner,Werner Maneschg, Jochen Schreiner, Herbert Strecker

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine（2023）

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摘要

This proceeding presents the decomposition of the background spectra of the four screening detectors GeMPI 1 - 4 at the Gran Sasso Underground Laboratory (LNGS) using Monte Carlo simulations in the Geant4-based framework MaGe. A detailed understanding of the composition of the background spectra was achieved, allowing for the proposal of two new shield designs for future GeMPI-like detectors and enabling a reduction of the integrated background count rate to 15 counts/d/kg in the interval [40, 2700] keV.

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关键词

Background,Germanium spectroscopy,Low radiation,Material screening,Monte Carlo simulation

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