Accession Number:

AD0265363

Title:

SOLID STATE JUNCTION FAST NEUTRON SPECTROMETERS

Descriptive Note:

Corporate Author:

WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA

Personal Author(s):

• BABCOCK,R.V.
• REICHERT,J.D.
• RUBY,S.L.

Report Date:

1961-08-01

Pagination or Media Count:

1.0

Abstract:

Westinghouse Electric Corp., Pittsburgh, Pa. SOLID STATE JUNCTION FAST NEUTRON SPECTROMETERS, by R. V. Babcock, J. D. Reichert, and S. L. Ruby. Aug 61, 107p. incl. illus. 27 refs. Contract AF 296012770, Proj. 8802 AFSWC TR 61-57Unclassified report DESCRIPTORS Semiconductors, Solids, Lithium compounds, Fluorides, Neutron counters, Neutron flux density, Fast neutrons. Thorium, Uranium, Radioactive isotopes. Neutron cross sections, Spectrographic analysis, Instrumentation, Nuclear reactions. Carbon, Recoil atom. Possible fast neutron spectroscopy systems using P-N junctions were investigated. Combinations of fast fission threshold counters exhibited useful energy dependencies. As part of this evaluation, fission cross sections of Th-232 and U-234 in the 12 to 18 Mev range were measured. Li-6F spectrometers exhibited excellent energy resolution. To extend their value, the Li-6n,alphaH-3 cross section was measured in the range 0.75 to 1.65 Mev. A carbon recoil method for large neutron fluxes also showed promise. A system using the Li-6F device in the range 0 to 8 Mev and carbon recoil at higher energies is recommended. Where less resolution is needed the fast fission system is more sensitive. Author

Descriptors:

• *LITHIUM COMPOUNDS
• *NEUTRON COUNTERS
• *SEMICONDUCTORS
• CARBON
• FAST NEUTRONS
• FLUORIDES
• INSTRUMENTATION
• NEUTRON FLUX
• NUCLEAR REACTIONS
• RADIOACTIVE ISOTOPES
• RECOIL ATOMS
• SOLIDS
• SPECTROGRAPHY
• THORIUM
• URANIUM

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE