Development of wide range photon detection system for muonic X-ray spectroscopy

水野 るり恵*; 新倉 潤*; 齋藤 岳志*; 松崎 禎市郎*; 櫻井 博儀*; Amato, A.*; 浅利 駿介*; Biswas, S.*; Chiu, I.-H.; Gianluca, J.*; Guguchia, Z.*; Janka, G.*; 二宮 和彦*; Ritjoho, N.*; 佐藤 朗*; Schoeler, K. von*; 友野 大*; 寺田 健太郎*; Wang, C.*

Mizuno, Rurie*; Niikura, Megumi*; Saito, Takeshi*; Matsuzaki, Teiichiro*; Sakurai, Hiroyoshi*; Amato, A.*; Asari, Shunsuke*; Biswas, S.*; Chiu, I.-H. ; Gianluca, J.*; Guguchia, Z.*; Janka, G.*; Ninomiya, Kazuhiko*; Ritjoho, N.*; Sato, Akira*; Schoeler, K. von*; Tomono, Dai*; Terada, Kentaro*; Wang, C.*

We have developed a photon detection system for muonic X-ray spectroscopy. The detector system consists of high-purity germanium detectors with BGO Compton suppressors. The signals from the detectors are readout with a digital acquisition system. The absolute energy accuracy, energy and timing resolutions, photo-peak efficiency, the performance of the Compton suppressor, and high count rate durability are studied with standard -ray sources and in-beam experiment using Al()Si resonance reaction. The detection system was demonstrated at Paul Scherrer Institute. A calibration method for a photon detector at a muon facility using muonic X-rays of Au and Bi is proposed.