[18p-D411-1~7] 2.2 Radiation physics fundamentals & applications, radiation generators, new technology

▼ [18p-D411-6] Study on a high-energy X-ray CT using GOS FPD for fuel debris screening

〇(M2)Akira Mikami¹, Yuki Mitsuya¹, Hiroyuki Takahashi¹ (1.Sch. of Eng. The Univ. of Tokyo)

Keywords:Hign-energy X-ray, GOS FPD, Fuel debris screening

For analyzing fuel debris from 1F(Fukushima daiichi Nuclear Power Plant), nondestructive inspection method using high-energy X-ray CT using X-band LINAC X-ray source has been developed. For stopping high-energy X-ray, improvement of FPD is necessary. In this research, we used 1.5μm thick GOS FPD, and evaluate its effectiveness by comparing S/N ratio, Spatial resolution with other FPD. In the research, we use simulated fuel debris instead of fuel debris. The simulated fuel debris used in this research consists of mixture of Fe, or Zr and Pb.