High-efficiency gamma-ray imaging for low-dose inspection

Research Project

Project/Area Number	25461859
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Radiation science
Research Institution	Saga University (2014-2015) Nagasaki Institute of Applied Science (2013)
Principal Investigator	Fusayasu Takahiro 佐賀大学, 工学(系)研究科(研究院), 准教授 (70399210)
Project Period (FY)	2013-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000) Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords	放射線計測 / LSI / 光電コンバータ / 低被爆診断 / エックス線 / ガンマ線 / Ｘ線イメージング / ガンマ線イメージング / GEM / ガンマ線イメージセンサ / FPGA
Outline of Final Research Achievements	In order to establish low-dose inspection with X-ray or Gamma-ray, high-efficiency gamma-ray imager was developed. Firstly, photon-electron converter was designed and its prototype was fabricated. As for the readout system, an original ASIC called STRIPIX was used so that S/N ratio would be improved. For system verification, X-ray transmission imaging was performed. In addition, X-ray diffraction on powder crystal sample was demonstrated.