Actions for THE INVESTIGATION OF NEUTRON KINETICS AND CROSS SECTIONS IN FAST NONMODERATING ASSEMBLIES BY THE NANOSECOND PULSED NEUTRON SOURCE TECHNIQUE

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THE INVESTIGATION OF NEUTRON KINETICS AND CROSS SECTIONS IN FAST NONMODERATING ASSEMBLIES BY THE NANOSECOND PULSED NEUTRON SOURCE TECHNIQUE

Author
Beghian, L. E.
Published
United States : [publisher not identified], 1962.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1962.
Physical Description
microopaque : positive ; 8 x 13 cm
Additional Creators
Rasmussen, N. C., Thews, R., and Weber, J.

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Summary
Nanosecond bursts of monoenergetic neutrons in the range 0.8-- 1.6 Mev are injected into non-moderating assemblies of bismuth, lead, and natural uranium. The flux in these assemblies is observed to decay exponentially with characteristic nanosecond time constants in good agreement with one velocity transport theory, and the known inelastic scattering and absorption cross sections. These experiments serve as a check on the validity of the assumptions of transpont theory. The technique also serves as a method for measuring macroscopic inelastic and absorption cross sections directiy, without the necessity of making the corrections required in other methods, e.g., for double scattering and for the angular distribution. (auth)
Report Numbers
TID-16304
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT(30-1)-2098
NSA number: NSA-17-011598
OSTI Identifier 4713214
Research organization: Massachusetts Inst. of Tech., Cambridge.
View MARC record | catkey: 42250250