Feasibility study of SiPM based scintillation detector for dual-energy X-ray absorptiometry
| Autor: | Hankyeol Song, Yong Hyun Chung, Kyu Bom Kim, Jinhun Joung, Yongkwon Kim, Chanwoo Park |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Dual-energy x-ray absorptiometry (DXA)
Materials science Preamplifier 020209 energy Constant fraction discriminator 02 engineering and technology Scintillator Lyso 030218 nuclear medicine & medical imaging 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Optics Silicon photomultiplier 0202 electrical engineering electronic engineering information engineering LYSO Scintillation crystal Scintillation business.industry Detector lcsh:TK9001-9401 Cadmium zinc telluride Nuclear Energy and Engineering chemistry lcsh:Nuclear engineering. Atomic power Silicon photomultipliers (SiPM) business |
| Zdroj: | Nuclear Engineering and Technology, Vol 52, Iss 10, Pp 2346-2352 (2020) |
| ISSN: | 1738-5733 |
| DOI: | 10.1016/j.net.2020.03.030 |
| Popis: | 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 mm3). 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. |
| Databáze: | OpenAIRE |
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