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Title: YIELDS, ANGULAR DISTRIBUTIONS, AND POLARIZATION OF GAMMA RAYS FROM COULOMB EXCITATION

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

The yields of gamma rays resulting from Coulomb 197/, Ir/sup 193/, Ir/ sup 191/, Re/sup 187/, Re/sup 185/, W/sup 183/, Ta/sup 181/, Cd/sup 113/, Cd/ sup 111/, Ag/sup 109/, Ag/sup 107/, Rh/sup 103/, Mo/sup 95/, Os/sup 192/, Os/sup 190/ , W/sup 186/, W/sup 184/, W/sup 184/, and W/sup 182. Angular distributions of the gamma radiation from the nuclei Tl/sup 205/, 197/, Re/sup 185/Ta/sup 181/, Cd/ sup 111/, Ag/sup 109/, red with respect to the incident proton beam on thick targets. The linear polarization of gamma rays following Coulomb excitation has been studied. A polarimeter based on the Compton scattering mechanism has been constructed and its effectiveness determined by measurements of the known polarization of gamma rays from excitation of 2+ levels in even-even nuclei. Polarization-direction measurements of several transitions in odd-mass nuclei have resolved the ambiguity either in the value of (E2/M1)/sup 1/2/ or in the spin of the excited state deduced from the angular distributions. Reduced transition probabilities for E2 and M1 transitions are obtained. In some instances these quantities are compared to the predictions of the collected model of the nucleus. (auth)

Research Organization:
Oak Ridge National Lab., Tenn.
NSA Number:
NSA-12-006296
OSTI ID:
4336107
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Physical Review (U.S.) Superseded in part by Phys.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, Vol. Vol: 109; Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
Country unknown/Code not available
Language:
English