[19p-W810-1~16] 2.2 Detection systems

[19p-W810-10] Scintillating Glass GEM detector for high resolution X-ray imaging and CT

〇Takeshi Fujiwara¹, Yuki Mitsuya², Hiroyuki Takahashi², Hiroyuki Toyokawa¹ (1.AIST, 2.Univ. of Tokyo)

Keywords:Gaseous Detector,X-ray Imaging,CT

A novel radiation imaging gas detector has been successfully developed by combining a glass gas electron multiplier (G-GEM), scintillating gas, and mirror-lens-CCD-camera system. The imaging system consists of a chamber filled with Ar/CF₄ scintillating gas mixture, inside of which G-GEM is mounted for gas multiplication. The detector is showed high sensitivity to low-energy X-rays, which results in a high contrast radiograph for elements with low atomic numbers. In addition, the combination of G-GEM (280 μm pitch precise holes) and a 300,000 pixel CCD sensor enables high spatial resolution.