Abstract In order to reduce the time for core verification or visual inspection of BWR fuels, the underwater camera using a High- Definition camera has been developed. As a result of this development, the underwater camera has 2 lights and 370×400×328mm dimen sions and 20.5kg weight, Using the camera, 6 or so spent-fuel IDs are identified at lor 1.5m distance at a time, and 0.3mm $ pin-h ole is recognized at 1.5m distance and 20 times zoom-up. Noises caused by radiation less than 15Gy/h are not affected th...
英字タイトル:
Development of underwater camera using High-Definition camea

The purpose of this study is to develop underwater High-Definition camera for the confirmation test of core configuration and visual examination of BWR f uels in order to reduce the time of these tests and total cost regarding to purchase and maintenance. The prototype model of the camera was developed and examined in real use condition in spent fuel pool at HAMAOKA-2 and 4. The examination showed that the ability of prototype model was either equaling or surpassing to conventional product expect for resi...
英字タイトル:
Development of underwater High-Definition camera for the confirmation test of core configuration andvisual examination of BWR fuel