Examinations of fuel debris samples from Three Mile Island Unit 2

Nagase, Fumihisa

Enerugi To Doryoku, 62(279), p.1 - 7, 2012/11

http://ci.nii.ac.jp/naid/40019486362

In the accident at the Fukushima-Daiichi Nuclear Power Plants, fuels were molten due to loss of coolant and heat-up of the reactor core. Information on properties of molten fuels (debris) is important to analyze progress of the accident, estimate the status inside the damaged reactors and work on a plan for debris removal. Extensive examinations have been conducted after the accident at the Three Mile Island Unit 2 (TMI-2) in 1979. The Japan Atomic Energy Agency conducted a part of the examinations in the frame of the OECD/NEA Three Mile Island Vessel Investigation Program. This issue reports outline and the main results of the TMI-2 debris examination programs.