Development of a 3-D Scintillator Detector for Compton Imaging Based on Laser Engraving
文献类型：期刊论文
| 作者 | Zhang, JP; Li, CM; Pang, XY; Tang, HH; Feng, BT; Li, DW; Kong, LQ; Zhang, YW; Zhang, ZM; Wei, L |
| 刊名 | IEEE TRANSACTIONS ON NUCLEAR SCIENCE
 |
| 出版日期 | 2020 |
| 卷号 | 67期号:7页码:1691-1698 |
| 关键词 | Compton imaging image reconstruction scintillation detectors subsurface laser engraving (SSLE) |
| ISSN号 | 0018-9499 |
| DOI | 10.1109/TNS.2019.2956180 |
| 文献子类 | 期刊; 会议 |
| 英文摘要 | Y2SiO5: Ce (YSO) scintillation with characteristics of high light yield, fast decay time, and high Compton scattering fraction shows good application potential for Compton imaging. In this article, we propose a 3-D scintillator detector, which is segmented by the YSO monolithic rods and pixelated by subsurface laser engraving (SSLE) in the depth direction. Two arrays of silicon photomultipliers are optically coupled to the YSO array at each end, in which the pixels are designed for a one-to-one match. By identifying the location number of array pixels and measuring the depth of interaction (DOI) of pixelated scintillator rods, the interaction coordinates of gamma photon can be obtained accurately. After energy-consistent calibration, the energy resolutions of the pixels in the 3-D detector were evaluated. The imaging test results indicate that the detector has the capability to locate a 0.1-mu Sv/h 137-Cs gamma-ray source within 90 s in 4 pi field of view (FOV). The efficiency of the imaging events is 2.2%. By using the maximum-likelihood expectation-maximization (MLEM) algorithm with ten iterations, the full width at half maximum (FWHM) of the reconstructed hotspot decreases to less than 9.0 degrees. This configuration mainly simplifies the calculation of interaction coordinates compared to the center of the gravity method. Moreover, the higher segment precision for DOI estimation is realized due to the SSLE technique. The 3-D scintillator detector achieves 4 pi Compton imaging with high detection efficiency and high localization accuracy. |
| 电子版国际标准刊号 | 1558-1578 |
| WOS关键词 | CAMERA ; DEPTH ; ARRAY |
| WOS研究方向 | Engineering ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000550669800062 |
| 源URL | [https://ir.ihep.ac.cn/handle/311005/304391]  |
| 专题 | 高能物理研究所_核技术应用研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, JP,Li, CM,Pang, XY,et al. Development of a 3-D Scintillator Detector for Compton Imaging Based on Laser Engraving[J]. IEEE TRANSACTIONS ON NUCLEAR SCIENCE,2020,67(7):1691-1698. |
| APA | Zhang, JP.,Li, CM.,Pang, XY.,Tang, HH.,Feng, BT.,...&Shuai, L.(2020).Development of a 3-D Scintillator Detector for Compton Imaging Based on Laser Engraving.IEEE TRANSACTIONS ON NUCLEAR SCIENCE,67(7),1691-1698. |
| MLA | Zhang, JP,et al."Development of a 3-D Scintillator Detector for Compton Imaging Based on Laser Engraving".IEEE TRANSACTIONS ON NUCLEAR SCIENCE 67.7(2020):1691-1698. |
入库方式： OAI收割
来源：高能物理研究所
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