Thermal Neutron Discrimination Using a Novel Phoswich Detector of Gd3Ga3Al2O12:Ce,B and CsI:Tl Single Crystals

被引：6

作者：

Kalyani ^{[1
,2
]}

Tyagi, Mohit ^{[2
,3
]}

Rawat, Sheetal ^{[4
]}

Singh, Awadh K. ^{[2
]}

Patel, Tarun ^{[2
]}

Sarkar, P. S. ^{[2
,3
]}

Desai, Shraddha S. ^{[5
]}

Kumar, G. Anil ^{[6
]}

机构：

[1] IIT Roorkee, Dept Phys, Radiat Detectors & Spect Lab, Roorkee 247667, Uttar Pradesh, India

[2] Bhabha Atom Res Ctr, Tech Phys Div, Mumbai 400085, Maharashtra, India

[3] Homi Bhabha Natl Inst, Mumbai 400094, Maharashtra, India

[4] Pandit Deendayal Petr Univ, Dept Sci, Gandhinagar 382007, India

[5] Bhabha Atom Res Ctr, Div Solid State Phys, Mumbai 400085, Maharashtra, India

[6] IIT Roorkee, RDS Lab, Dept Phys, Roorkee 247667, Uttar Pradesh, India

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2020年 / 67卷 / 11期

关键词：

CsI:T; Gd3Ga3Al2O12; (GGAG):Ce; B; phoswich; scintillator; single crystal; thermal neutron detection; PULSE-SHAPE DISCRIMINATION; N-GAMMA DISCRIMINATION; PLASTIC SCINTILLATORS; SIPM;

D O I：

10.1109/TNS.2020.3028901

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A phoswich detector was fabricated using a combination of single-crystal scintillators of CsI:Tl and Gd3Ga3Al2O12:Ce,B. The performance characteristics of this novel phoswich detector were investigated for thermal neutron detection in the presence of different gamma backgrounds using an Am-Be source and in a research reactor beam line. High atomic density and excellent thermal neutron capture cross section of Gd leads to the high detection efficiency for thermal neutrons in a 1-mm thin disk of Gd3Ga3Al2O12 crystal. The high figure of merit of similar to 6.5 obtained for thermal neutron detection ensures the detector's excellent discrimination property in the presence of high gamma background.

引用

页码：2415 / 2420

页数：6

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