First result of large size Scintillating Glass GEM imager
National Institute of Advanced Industrial Science and Technology (AIST), Research Institute for Measurement and Analytical Instrumentation, 1-1-1 Umezono, Tsukuba, Ibaraki, 305-8568 Japan
2 The University of Tokyo, Japan, Department of Nuclear Engineering and Management, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8656 Japan
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Published online: 21 February 2018
A large size x-ray imaging gaseous detector, which has 280 × 280 mm2 effective area has been successfully developed and x-ray imaging has been demonstrated. The imaging system consists of a chamber filled with Ne/CF4 scintillating gas mixture, inside of which Glass GEM (G-GEM) is mounted for gas multiplication. In this system electrons are generated by the reaction between x-rays and the gas, and visible photons by excited Ne/CF4 gas molecules during the gas electron multiplication process in the G-GEM holes. These photons are simply detected with CCD-camera and a radiograph is formed. Here, we report on the properties of large size scintillation G-GEM and the results of using it as a digital x-ray imager with a large sensitive area.
© The Authors, published by EDP Sciences, 2018
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