NEUTRON TOTAL CROSS SECTIONS OF Be, B$sup 10$, B, C, AND O
Total cross sections of Be, B/sup 10/, B, C, and 0 are measured for neutrons of energies between 3.4 and 16 Mev. Neutrons of energy spreads between 15 and 40 kev are produced by bombarding tritium targets with protons or deuterium targets with deuterons, the charged particles being accelerated in a tandem electrostatic accelerator. Sharp peaks in the total cross sections of B/ sup 11/, C, and O yield information about energy levels in B/sup 12/, C/sup 13/, and O/sup 17/. None of the total cr oss sections of the five nuclei investigsted show sharp peaks above energies corresponding to an excitation energy of the order of 12 Mev of the respective compound nucleus. The transition from sharp structure to a slowly varying cross section occurs quite abruptly, except for the compound nucleus B/sup 11/ which is excited to almost 12 Mev even for slow neutrons. (auth)
- Research Organization:
- Univ. of Wisconsin, Madison
- NSA Number:
- NSA-15-024363
- OSTI ID:
- 4028510
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 123; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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