ATLAS-TPX: a two-layer pixel detector setup for neutron detection and radiation field characterization

被引：26

作者：

Bergmann, B. ^{[1
]}

Caicedo, I. ^{[1
]}

Leroy, C. ^{[2
]}

Pospisil, S. ^{[1
]}

Vykydal, Z. ^{[1
,3
]}

机构：

[1] Czech Tech Univ, Inst Expt & Appl Phys, Horska 3a-22, Prague 12800, Czech Republic

[2] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada

[3] Czech Metrol Inst, Radiova 1a, CZ-10200 Prague 10, Czech Republic

来源：

JOURNAL OF INSTRUMENTATION | 2016年 / 11卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Neutron detectors (cold; thermal; fast neutrons); Particle identification methods; Particle tracking detectors (Solid-state detectors); Solid state detectors; TIMEPIX;

D O I：

10.1088/1748-0221/11/10/P10002

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A two-layer pixel detector setup (ATLAS-TPX), designed for thermal and fast neutron detection and radiation field characterization is presented. It consists of two segmented silicon detectors (256 x 256 pixels, pixel pitch 55 mu m, thicknesses 300 mu m and 500 mu m) facing each other. To enhance the neutron detection efficiency a set of converter layers is inserted in between these detectors. The pixelation and the two-layer design allow a discrimination of neutrons against gamma s by pattern recognition and against charged particles by using the coincidence and anticoincidence information. The neutron conversion and detection efficiencies are measured in a thermal neutron field and fast neutron fields with energies up to 600 MeV. A Geant4 simulation model is presented, which is validated against the measured detector responses. The reliability of the coincidence and anticoincidence technique is demonstrated and possible applications of the detector setup are briefly outlined.

引用

页数：24

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