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

2013 Fiscal Year Final Research Report

• Project/Area Number: 23602017
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Medical Physics/Radiological Technology
• Research Institution: National Institute of Radiological Sciences
• Principal Investigator: INADAMA Naoko 独立行政法人放射線医学総合研究所, 分子イメージング研究センター, 主任研究員 (10415408)
• Project Period (FY): 2011 – 2013
• Keywords: DOI検出器 / PET検出器 / シンチレータ / レーザー加工 / MPPC

Research Abstract

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.

Research Products

• [Journal Article] X'tal cube PET detector composed of a stack of scintillator plates segmented by laser processing (2014)
  • Author(s): Naoko Inadama, Takahiro Moriya, Yoshiyuki Hirano, Fumihiko Nishikido, Hideo Murayama, Eiji Yoshida, Hideaki Tashima, Munetaka Nitta, Hiroshi Ito, and Taiga Yamaya.
  • Journal Title: IEEE transactions on nuclear science Volume: vol. 61, No. 1 Pages: 53-59
  • DOI: 10.1109/TNS.2013.2293599
  • Peer Reviewed
• [Presentation] The X'tal cube with 1 mm^3 isotropic resolution based on a stack of laser-segmented scintillator plates (2013)
  • Author(s): 稲玉直子
  • Organizer: Nuclear Science Symposium and Medical Imaging Conference
  • Place of Presentation: COEX convention center(韓国ソウル)
  • Year and Date: 2013-11-01
• [Presentation] A convenient light guide for trial production in its optimization process (2013)
  • Author(s): 稲玉直子
  • Organizer: Nuclear Science Symposium and Medical Imaging Conference
  • Place of Presentation: COEX convention center(韓国ソウル)
  • Year and Date: 2013-10-29
• [Presentation] Performance of the X'tal cube PET detector using 1 mm thick scintillator plates segmented to 1 x 1 mm^2 by laser processing (2013)
  • Author(s): 稲玉直子
  • Organizer: Society of Nuclear Medicine and Molecular Imaging Annual Meeting
  • Place of Presentation: Vancouver Convention Centre(カナダバンクーバー)
  • Year and Date: 2013-06-11
• [Presentation] X'tal cube detector composed of a stack of scintillator plates segmented by laser processing (2012)
  • Author(s): 稲玉直子
  • Organizer: Nuclear Science Symposium and Medical Imaging Conference
  • Place of Presentation: Disneyland Hotel (カリフォルニアアナハイム)
  • Year and Date: 2012-11-02
• [Presentation] Performance evaluation of the X'tal cube PET detector using a monolithic scintillator segmented by laser processing (2011)
  • Author(s): 稲玉直子
  • Organizer: Society of Nuclear Medicine Annual Meeting
  • Place of Presentation: San Antonio Convention Center(テキサスサンアントニオ)
  • Year and Date: 2011-06-07