Development of a self-powered gamma detector

• Published in: Journal of nuclear science and technology Vol. 51; no. 7-8; pp. 939 - 943
• Main Authors: Takeuchi, Tomoaki, Ohtsuka, Noriaki, Shibata, Akira, Tsuchiya, Kunihiko
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 03.08.2014
• Subjects: decommission; emitter; Fukushima Daiichi Nuclear Power Station; gamma detector; lead; self-powered

A type of self-powered gamma detector (SPGD) of only a few millimeters in diameter was developed as an alternative to direct visual contact to assess the position and situation of the fuel debris inside the primary containment vessel (PCV) of the Fukushima Daiichi Nuclear Power Station. Gamma irradi...