Study of alpha-particles emitted by CsI(T1) bombarded with fast neutrons
Conference
·
OSTI ID:4651872
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)
- Research Organization:
- Kentucky. Univ., Lexington, KY (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- NSA Number:
- NSA-17-034873
- OSTI ID:
- 4651872
- Report Number(s):
- CONF-13--5; AED-Conf--1963-013-20
- Country of Publication:
- United States
- Language:
- English
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