Neutron spectrometry with He-3 proportional counters

被引：3
|
作者：
Manolopoulou, M. [1 ]
Fragopoulou, M. [1 ]
Stoulos, S. [1 ]
Vagena, E. [1 ]
Westmeier, W. [2 ]
Zamani, M. [1 ]
机构：
[1] Aristotle Univ Thessaloniki, Sch Phys, Thessaloniki 54124, Greece
[2] Univ Marburg, D-35032 Marburg, Germany
来源：
XIX INTERNATIONAL SCHOOL ON NUCLEAR PHYSICS, NEUTRON PHYSICS AND APPLICATIONS (VARNA 2011) | 2012年 / 366卷
关键词：
RESPONSE FUNCTION; IONIZATION; PERFORMANCE; FIELDS; BEAMS;
D O I：
10.1088/1742-6596/366/1/012033
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Helium filled proportional counters are widely used in the field of neutron detection and spectrometry. A review of some parameters and physical effects that influence the He-3 proportional counters response is presented through the experimental study of a commercially available counter. The impact of these effects is taken into account in the description of detector performance when the response is calculated with the Monte Carlo method. A method to determine neutron energy distribution with a bare He-3 counter in an unknown neutron field is presented. The neutron energy range extends up to about 7 MeV. The method does not require a hypothesis about neutron spectrum shape. It is based in the calculated counter response with Geant4, the validity of which is experimentally verified. A detailed description of the steps needed is presented.
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页数：5
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