title: Response of Ge photon detectors to beta-rays and possible reduction of photopeak areas due to beta-gamma coincidence summing effects.
abstract: In the use of photon detectors having sensitivity to β-rays or internal conversion electrons (CEs), β-γ and/or X-CE coincidence summing may arise. In particular, an n-type germanium detector has a thin dead layer and window, causing considerably higher sensitivity to β-rays and/or CEs especially when sources are located at a small source-to-detector distance. In the present research, reduction of the photopeak area due to β-γ or X-CE coincidence summing has been studied for three germanium detectors.
authors: Japan Radioisotope Association, 28-45, Honkomagome 2, Bunkyo-ku, Tokyo 113-8941, Japan. Electronic address: ishizu-hidetake@jrias.or.jp.
authors: H
authors: H
authors: Ishizu
authors: Japan Radioisotope Association, 28-45, Honkomagome 2, Bunkyo-ku, Tokyo 113-8941, Japan.
authors: T
authors: T
authors: Yamada
authors: National Metrology Institute of Japan/National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan.
authors: Y
authors: Y
authors: Kawada
keywords: Coincidence summing; Conversion electrons; Photon spectrometry; n-Type germanium detector; β-Rays