Fuel Capsule Unthreads From Fixture During Neutron Radiography
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Type:  Lessons Learned

Publisher:  Idaho National Laboratory, Idaho Falls, ID

Published As:  Public

Date: 

Topics:  Operations, Material Handling/Storage

At the Hot Fuels Examination Facility Neutron Radiography Reactor, while developing film a worker discovered that one of three fuel capsules had come loose from the mount and the capsule balanced itself on a fixture 18 feet down a remotely operated neutron radiography elevator shaft that is 29 feet deep. Retrieving the pin remotely was not a viable option. Raising the elevator was the only course of action which could have caused the capsule to fall resulting in damage and possible loss of data to an expensive experiment.

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