Characterisation, modelling and optimisation of the model of a HPGe detector with the aid of point sources

被引：12

作者：

Marzocchi, O. ^{[1
,2
]}

Breustedt, B. ^{[1
]}

Urban, M. ^{[1
]}

机构：

[1] Forschungszentrum Karlsruhe, Inst Radiat Res ISF, D-76344 Eggenstein Leopoldshafen, Germany

[2] Univ Bologna, DIEM, I-40126 Bologna, Italy

来源：

APPLIED RADIATION AND ISOTOPES | 2010年 / 68卷 / 7-8期

关键词：

HPGe detectors; Monte Carlo; MCNPX; ISOCS; Point source measurements; Detector model; CALIBRATION;

D O I：

10.1016/j.apradiso.2009.11.022

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A virtual model of a Canberra HPGe detector was produced with the aid of MCNPX and of different point sources. The measured and expected count rates were compared. The initial results showed significant discrepancies, therefore additional parametric simulations have been used to improve the model. As a result, the agreement between theoretical and measured performances in the middle-upper part of the spectrum improved, while low energy photons still score the worst, due to Incomplete knowledge of the inner structure of the housing that would require additional extensive measurements. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1438 / 1440

页数：3

共 6 条

[1]

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[2]

Canberra Industries Inc, 2006, GEN 2000 SPECTR SOFT

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Urban, M. .

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[4]

*MICR CORP, 2003, MICR OFF EXC 2003

[5]

PELOWITZ DB, 2008, LACP050369 L AL NAT

[6] Precise modelling of coaxial germanium detectors in preparation for a mathematical calibration [J].

Schlaeger, Martin .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 580 (01) :137-140

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