Using spent fuels of actual reactor (TEPCO Fukushima Daiichi Unit 6), handling of DCVD (Digital Cherenkov Viewing Device) used to detect partial defects in spent fuel at nuclear power plants was trained. This training was held as part of the grant project by JASPAS (Japan Support programme for Agency Safeguards) by the Japanese government, and 6 inspectors from IAEA (International Atomic Energy Agency) Tokyo Regional Office, 4 inspectors from NMCC (Nuclear Material Control Center), and 1 inspector from NRA (Nuclear Regulation Authority) participated in the training as trainees. ISCN supported the training pertaining to logistical matters as secretariats.
In this training, participants received lectures on how to operate hardware of DCVD, a generating principle of Cherenkov radiation, measurement principle, setting up/dismantling the device in the lecture room.
At the spent fuel pool, exercises similar to usual inspection work were implemented toward actual spent fuel and participants acquired proficiency in the handing of DCVD. This training was very practical and sufficient experiences for the participants.