[10p-Z14-1~21] 2.2 Detection systems

[10p-Z14-17] Development of Neutron Gas Scintillation Imager with Capillary Plate-II

〇Toru Moriya¹, Haruyasu Kondo², Hiroyuki Sugiyama², Fuyuki Tokanai¹, Masahiro Hino³, Takayuki Sumiyoshi⁴ (1.Yamagata Univ., 2.Hamamatsu photonics, 3.Kyoto Univ., 4.Tokyo Metropolitan Univ.)

Keywords:Neutron Gas Scintillation Imager, Capillary Plate

Neutron imaging is useful for light elements in the sample such as hydrogen, lithium, boron, carbon, and nitrogen. Owing to their unique ability to probe inside samples, neutrons have been widely utilized for neutron radiography in various fields, including fundamental science, archaeology, and industry. We have been developing a high-spatial-resolution neutron gas scintillation imager with a capillary plate gas detector (n-CPGD). The performance of the n-GSI was investigated using the cold neutron beam line CN-3 installed to the Kyoto University. The neutron fluxes at the exit of the beamline was 3.8 × 10⁶ n/cm²/s for 5 MW KUR operation. The n-CGSI system consists of the n-CPGD, a mirror, lens optics, an image intensifier unit, and a CMOS camera. The n-CPGD consists of a converter layer and a CP in a sealed-type vessel. The spatial resolution was evaluated using a Gd test chart. In this conference, we report the status of development of n-GSI system.