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Feasibility study of SiPM based scintillation detector for dual-energy X-ray absorptiometry

Authors
 Chanwoo Park  ;  Hankyeol Song  ;  Jinhun Joung  ;  Yongkwon Kim  ;  Kyu Bom Kim  ;  Yong Hyun Chung 
Citation
 NUCLEAR ENGINEERING AND TECHNOLOGY, Vol.52(10) : 2346-2352, 2020-10 
Journal Title
 NUCLEAR ENGINEERING AND TECHNOLOGY 
ISSN
 1738-5733 
Issue Date
2020-10
Keywords
Dual-energy x-ray absorptiometry (DXA) ; Silicon photomultipliers (SiPM) ; LYSO Scintillation crystal
Abstract
Dual-energy x-ray absorptiometry (DXA) is the noninvasive method to diagnose osteoporosis disease characterized by low bone mass and deterioration of bone tissue. Many global companies and research groups have developed the various DXA detectors using a direct photon-counting detector such as a cadmium zinc telluride (CZT) sensor. However, this approach using CZT sensor has some drawback such as the limitation of scalability by high cost and the loss of efficiency due to the requirement of a thin detector. In this study, a SiPM based DXA system was developed and its performance evaluated experimentally. The DXA detector was composed of a SiPM sensor coupled with a single LYSO scintillation crystal (3 × 3 × 2 ㎣). The prototype DXA detector was mounted on the dedicated front-end circuit consisting of a voltage-sensitive preamplifier, pulse shaping amplifier and constant fraction discriminator (CFD) circuit. The SiPM based DXA detector showed the 34% (at 59 keV) energy resolution with good BMD accuracy. The proposed SiPM based DXA detector showed the performance comparable to the conventional DXA detector based on CZT.
Files in This Item:
T202005020.pdf Download
DOI
10.1016/j.net.2020.03.030
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyu Bom(김규범) ORCID logo https://orcid.org/0000-0002-3025-375X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/181285
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