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Photofission and photoexcitation studies

Thesis/Dissertation ·
OSTI ID:5186990
The high proton beam current available from the Brooklyn College Dynamitron Accelerator have been used to generate beams of gamma-rays of well defined and variable energy from the (p,..gamma..) reaction on various targets. Eleven such gamma-rays in the energy range from 5.8 to 11.5 MeV have been used to induce photofission in the even-even nuclei of /sup 238/U and /sup 232/Th. Spectra of photofission fragments have been measured with a photon energy resolution of several hundred eV. Polycarbonate films have been used as fission track detectors. The absolute efficiency of these films for counting fission fragments from thick uranium and thorium foils has been determined experimentally. Evidence of structure resulting from class II states was observed in /sup 232/Th.
Research Organization:
City Univ. of New York, NY (USA)
OSTI ID:
5186990
Country of Publication:
United States
Language:
English