Study of alpha-particles emitted by CsI(T1) bombarded with fast neutrons

Author: Gabbard, F.
Published: United States : [publisher not identified], 1963.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1963.
Physical Description: microfiche : negative ; 8 x 13 cm
Additional Creators: Beach, J. L. and Young, T.

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Summary

Alpha particles and protons emitted from CsI(Tl) bombarded by fast neutrons in the energy range 12.4 - 18.2 Mev were observed. Alpha particles were separated from protons using a circuit due to Biggerstaff. The excitation function for the sum of the Cs/sup 133/(n, alpha) and I/sup 127/(n, alpha) reactions was measured for the above energy range. The sum of the cross sections is 2.8 plus or minus 0.3 mb at 12.4 Mev and increases monotonically to 11 plus or minus 1 mb at 18.2 Mev. Spectra of the emitted alpha particles are presented. As previously observed by Bormann and Langkau, the alpha-particle spectra are not well represented by the statistical model, and some sort of direct reaction mechanism or mechanisms appear to be important. The observed spectra are compared with calculations based on the statistical model. (auth)

Report Numbers

CONF-13-5; AED-Conf-1963-013-20

Other Subject(s)

Collection

U.S. Atomic Energy Commission depository collection.

Note

DOE contract number: AT(40-1)-2067
NSA number: NSA-17-034873
OSTI Identifier 4651872
Research organization: Kentucky. Univ., Lexington, KY (United States).

Funding Information

Sponsored by US Atomic Energy Commission (AEC).

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