Actions for GAMMA-RAY SCANNING TECHNIQUES FOR FAST BREEDER REACTOR SAFETY STUDIES

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GAMMA-RAY SCANNING TECHNIQUES FOR FAST BREEDER REACTOR SAFETY STUDIES

Author
Beach, L. A.
Published
United States : [publisher not identified], 1961.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1961.
Physical Description
microopaque : positive ; 8 x 13 cm
Additional Creators
Pieper, A. G. and Young, M. P.

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Summary
A radiation scanning device was constructed to observe meltdown of fast breeder reactor fuel elements in the TREAT reactor by means of self gamma emission. Although the original desired specification was to view natural uranium pins with a space resolution of 0.1 in. and a time resolution of 1 millisecond, the system was designed to give the above space resolution, but the time resolution would be 5 milliseconds or longer depending on the signal intensity. The system failed to give satisfactory pictures because of low signal strength which gave poor contrast against high-strength background from the container required for safety reasons. Measurements indicated that a Mark III system could be constructed to view enriched pins in the standard container with a space resolution of 0.15 in. horizontally and 0.75 in. vertically with a time resolution of 5 milliseconds. (auth)
Report Numbers
NRL-5625; COO-273
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT(11-1)-607
NSA number: NSA-16-000340
OSTI Identifier 4833803
Research organization: Naval Research Lab. (NRL), Washington, DC (United States).
View MARC record | catkey: 41357491