Quality Control of High-Speed Photon Detectors Yusuke Inome, Yuji Sunada, Yuki Choshi, Masao Ichida, Razmik Mirzoyan, Hideyuki Ohoka, Takayuki Saito, Kinji Tamura, Masahiro Teshima and Tokonatsu Yamamoto EPJ Web Conf., 210 (2019) 05012 Published online: 17 May 2019 DOI: 10.1051/epjconf/201921005012