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Safety Record
Spent fuel casks are constructed with thick walls of various metals. This cask is approximately 18-feet long, 5-feet in diameter, and weighs about 82 tons. The ribs seen here are cooling fins used to dissipate the radioactive decay heat. The silver cap on the right end is an impact limiter. The impact limiter is designed to protect the closure of the cask to prevent release of its contents during severe collisions.


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