Study for gaining detector sensitivity by making the detector in a long shape on the high performance PET detector which consists of semiconductor photo-detectors

在由半导体光电探测器组成的高性能PET探测器上将探测器制成长形以提高探测器灵敏度的研究

• 批准号: 23602017
• 负责人: INADAMA Naoko
• 金额: $ 3.33万
• 依托单位: National Institute of Radiological Sciences
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23602017/
• 关键词: DOI検出器; PET検出器; シンチレータ; レーザー加工; MPPC

Positron emission tomography (PET) is a method to image distribution of substance in a body and often used in medical field. For example, specific accumulations observed in an image of glucose distribution indicate exist of tumors. Such PET image is obtained by injecting radioisotope (RI) of the substance and detecting the radiations from the RI at outside the body so that the image quality is much depends on performance of the radiation detectors. Our research team was developed the high performance PET detector which could be realized by recent popularization of small photo-detector devices. In this study, it was proved that, aiming for gaining the detector sensitivity, extension of the detector volume in one direction (a long shape) was possible with maintaining detector spatial resolution. Also, it was found that the new trials in fabrication, the use of plate scintillators for high yield rate and laser processing, were effective.

正电子发射断层扫描（PET）是一种对体内物质分布进行成像的方法，常用于医学领域。例如，在葡萄糖分布图像中观察到的特异性积聚表明存在肿瘤。这种PET图像是通过注入物质的放射性同位素（RI）并在体外检测来自RI的辐射来获得的，因此图像质量在很大程度上取决于辐射探测器的性能。我们的研究团队开发了一种高性能的PET探测器，这种探测器可以通过最近小型光电探测器设备的普及来实现。本研究证明，在保持探测器空间分辨率的前提下，以获得探测器灵敏度为目标，探测器体积在一个方向上（长形）扩展是可能的。此外，还发现在制造中使用板闪烁体进行高良率和激光加工的新尝试是有效的。

项目成果

X'tal cube detector composed of a stack of scintillator plates segmented by laser processing

Xtal 立方体探测器由一堆通过激光加工分段的闪烁体板组成

• 发表时间: 2012
• 作者: Arun Prasath Lakshmanan;Watanabe K et al.;稲玉直子
• 通讯作者: 稲玉直子

レーザー分割シンチレータのクリスタルキューブPET検出器：３Ｄ加工法と２Ｄ加工法の比較

激光分光闪烁体晶体立方体PET探测器：3D和2D加工方法的比较

• 作者: Arumugam S;Watanabe K et al.;稲玉 直子
• 通讯作者: 稲玉 直子

Performance evaluation of the X'tal cube PET detector using a monolithic scintillator segmented by laser processing

使用激光加工分段的单片闪烁体对 Xtal 立方体 PET 探测器进行性能评估

• 发表时间: 2011
• 作者: Somasundaram Arumugam;Watanabe K et al.;稲玉直子
• 通讯作者: 稲玉直子

Study about position calculation for the DOI-PET detector 2nd SNU-NIRS Workshop on Nuclear Medicine Imaging Science and Technology

DOI-PET探测器位置计算研究第二届SNU-NIRS核医学成像科学与技术研讨会

• 作者: Arumugam S;Watanabe K et al.;Naoko Inadama
• 通讯作者: Naoko Inadama

X’tal Cube PET Detector Composed of a Stack of Scintillator Plates Segmented by Laser Processing

X’tal Cube PET 探测器由一堆激光加工分段的闪烁体板组成

• DOI: 10.1109/tns.2013.2293599
• 发表时间: 2014
• 期刊: IEEE transactions on nuclear science
• 影响因子: 1.8
• 作者: Naoko Inadama;Takahiro Moriya;Yoshiyuki Hirano;Fumihiko Nishikido;Hideo Murayama;Eiji Yoshida, Hideaki Tashima;Munetaka Nitta;Hiroshi Ito;and Taiga Yamaya
• 通讯作者: and Taiga Yamaya