DR ball 3X drop: Operation Physics report
Description:
An accidental ball 3X trip occurred at DR Reactor on July 11, 1961. Startup was attempted on July 21, 1961, subsequent to the ball recovery operations, at which time a large reactivity loss was apparent. The loss was assigned to inaccessible poison balls remaining within the graphite structure. Enriched uranium (0.947% U{sup 235}) columns were charged during successive outages to immediately recover the minimum excess reactivity required for operational transients and effective control. The lar…
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Date:
March 6, 1963
Creator:
Hagan, J. W.
Item Type:
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Report
Partner:
UNT Libraries Government Documents Department