LaBr3(Ce):LaCl3(Ce) Phoswich with pulse shape analysis for high energy gamma-ray and proton identification

被引：14

作者：

Tengblad, O. ^{[1
]}

Nilsson, T. ^{[2
]}

Nacher, E. ^{[1
]}

Johansson, H. T. ^{[2
]}

Briz, J. A. ^{[1
]}

Carmona-Gallardo, M. ^{[1
]}

Cruz, C. ^{[1
]}

Gugliermina, V. ^{[1
]}

Perea, A. ^{[1
]}

Sanchez del Rio, J. ^{[1
]}

Turrion Nieves, M. ^{[1
]}

Bergstrom, J. ^{[2
]}

Blomberg, E. ^{[2
]}

Bulling, A. ^{[2
]}

Gallneby, E. ^{[2
]}

Hagdahl, J. ^{[2
]}

Jansson, L. ^{[2
]}

Jareteg, K. ^{[2
]}

Masgren, R. ^{[2
]}

Nordstrom, M. ^{[2
]}

Risting, G. ^{[2
]}

Shojaee, S. ^{[2
]}

Wittler, H. ^{[2
]}

机构：

[1] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain

[2] Chalmers, Dept Fundamental Phys, S-41296 Gothenburg, Sweden

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2013年 / 704卷

关键词：

Phoswich scintillator; Gamma calorimeter; LaBr3(Ce); LaCl3(Ce); Pulse shape analysis;

D O I：

10.1016/j.nima.2012.11.094

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A novel Phoswich design based on new generation scintillator crystals is presented. The detector composed from a combination of a LaBr3(Ce) with a LaCl3(Ce) crystal in one cylinder coupled to a photo multiplier tube has been tested both for incident gamma rays in the range of 0.3-6 MeV, as well as for high energy protons in the range 120-180 MeV. The Phoswich assembly has not significantly deteriorated the energy resolution, which for 662 KeV gamma rays gives a resolution of 4.5%, while for high energy protons (E-p = 180 MeV) an energy resolution of 1% was obtained. It is shown that the signals from the two crystals can be separated in an event by event based mode. Using direct digitizing of the detector pulse an off-line pulse-shape analysis was performed built either on a total to tail or total to pulse height method in order to fully identify the incoming radiation. Our aim with this R&D is to in the future build a detector which is able to detect with good efficiency and resolution over a wide energy range; 0.1-30 MeV gamma rays and 20-400 MeV protons. Monte Carlo simulations made in order to design the next prototype are presented. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：19 / 26

页数：8

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