Development of scintillation-light-transmission type phoswich detector for simultaneous alpha- and beta (gamma)-ray counting

2000 ◽  
Vol 47 (4) ◽  
pp. 1337-1340 ◽  
Author(s):  
K. Yasuda ◽  
S. Usuda ◽  
H. Gunji
Keyword(s):  
Gamma Ray ◽  
Light Transmission ◽  
Scintillation Light ◽  
Phoswich Detector

A miniature phoswich detector for gamma-ray localization and beta imaging

1998 ◽  
Vol 45 (3) ◽  
pp. 1166-1173 ◽  
Author(s):  
M.P. Tornai ◽  
C.S. Levin ◽  
L.R. Macdonald ◽  
C.H. Holdsworth ◽  
E.J. Hoffman
Keyword(s):  
Gamma Ray ◽  
Phoswich Detector

CsI(Tl)/plastic phoswich detector enhanced in low-energy gamma-ray detection

2005 ◽  
Vol 550 (3) ◽  
pp. 609-615 ◽  
Author(s):  
Koutaro Yamasoto ◽  
Masahiro Tsutsumi ◽  
Tetsuya Oishi ◽  
Michio Yoshizawa ◽  
Makoto Yoshida
Keyword(s):  
Gamma Ray ◽  
Low Energy ◽  
Phoswich Detector ◽  
Energy Gamma

A miniature phoswich detector for gamma-ray localization and beta imaging

2002 ◽  
Author(s):  
M.P. Tornai ◽  
C.S. Levin ◽  
L.R. MacDonald ◽  
C.H. Holdsworth ◽  
E.J. Hoffman
Keyword(s):  
Gamma Ray ◽  
Phoswich Detector

Comparison of Scintillation Light Yield of CWO and BGO Single Crystals for Gamma Ray Detection

2020 ◽  
Vol 901 ◽  
pp. 89-94
Author(s):  
Akapong Phunpueok ◽  
Voranuch Thongpool ◽  
Sarawut Jaiyen ◽  
Hua Shu Hsu
Keyword(s):  
Energy Resolution ◽  
Gamma Ray ◽  
Radiation Detection ◽  
Light Yield ◽  
Stopping Power ◽  
Good Energy Resolution ◽  
Scintillation Light ◽  
Radioactive Materials ◽  
Yield Value ◽  
Good Energy

Nowadays, radioactive materials are being applied in medical imaging. Because humans cannot observe radiation, radiation detection materials are very important to humans. A scintillator is a material that can change gamma photons to visible photons. Good scintillators should have the following properties: high scintillation light yield, good energy resolution, and high density. In this work, the scintillation light yield property of CWO crystals was studied due to its interesting properties, such as high stopping power and low hygroscopicity. CWO crystals were compared with BGO crystals. From the results, it was found that the BGO crystals showed higher scintillation light yield value at 662 keV energy from 137Cs radioactive source than the CWO crystals, resulting in better energy resolution value. The intrinsic light yield and loss parameters for both crystals are also presented in this work.

Multi-chip front-end electronics LYRA for X and γ Ray detector for HERMES mission

2021 ◽  
Vol 16 (12) ◽  
pp. T12013
Author(s):  
M. Gandola ◽  
F. Mele ◽  
M. Grassi ◽  
P. Malcovati ◽  
G. Bertuccio
Keyword(s):  
Power Consumption ◽  
Integrated Circuit ◽  
Gamma Ray ◽  
Detection System ◽  
Current Mode ◽  
High Energy ◽  
Electronic Noise ◽  
Scintillation Light ◽  
Front End ◽  
Scale Range

Abstract We present the experimental results of the Application Specific Integrated Circuit (ASIC), called LYRA, specifically designed for the High-Energy Rapid Modular Ensemble of Satellites (HERMES) mission concept, a constellation of nano-satellites able to detect and localize high-energy rapid transient events (up to 2.2 MeV) as the Gamma Ray Bursts (GRBs) from the deep space. LYRA has been desied for the detection system composed by a combination of Gadolinium Aluminum Gallium Garnet (GAGG) scintillators for high-energy photons, coupled to a matrix of 120 silicon drift detectors (SDD), used for detecting both scintillation light and low-energy photons. The LYRA ASIC has been conceived with a multi-chip architecture: 120 LYRA Front-End chips (LYRA-FE) are placed in close proximity to the anodes of the SDD matrix for a first processing of the detector signals and trasmit them in current mode to four 32-channel LYRA Back-End chips (LYRA-BE) to complete the elaboration. The requirements that the LYRA ASIC have to fulfill for the HERMES project are challenging: the maximum input energy measured in Silicon must reach 120 keV — corresponding to 2.2 MeV on GAGG — with a linearity error below 1%, the electronic noise must be less then 30 el. r.m.s. and the power consumption less then 1 mW per channel in a system with 120 channels working in parallel. The characterization of LYRA has been carried out on a dedicated test board, coupling one channel of the ASIC with a 25 mm2 SDD. An input full scale range of 5.2 fC and an electronic noise of 22 el. r.m.s. have been measured at -33∘C with a power consumption of 745 µW per channel.

Depth of /spl gamma/-ray interaction within continuous crystals from the width of its scintillation light-distribution

2005 ◽  
Vol 52 (3) ◽  
pp. 560-572 ◽  
Author(s):  
C.W. Lerche ◽  
J.M. Benlloch ◽  
F. Sanchez ◽  
N. Pavon ◽  
B. Escat ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Light Distribution ◽  
Scintillation Light
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