|Author||Fischbeck, H. J. ♦ Wilkinson, R. G.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||PHYSICS ♦ ANGULAR DISTRIBUTION ♦ BETA DECAY ♦ BETA PARTICLES ♦ BETA SPECTROMETERS ♦ ENERGY ♦ EUROPIUM ♦ GAMMA RADIATION ♦ MAGNETISM ♦ MEASURED VALUES ♦ RUBIDIUM ♦ SPECTRA|
|Abstract||Measurements are reported on the energy dependence of the BETA - gamma angular correlation coefficient in the special first forbidden cases of Rb/sup 86/ and Eu/sup 152/. Energy selection of the BETA rays was accomplished with a magnetic BETA -ray spectrometer having good transmission. It is shown that Rb/ sup 86/ cannot be analyzed in terms of the so-called modified B/sub ij/. approximation. The Eu/sup 152/ decay, on the other hand, can be treated quite satisfactorily in this approximation. It was concluded in this case that a strong selection-rule effect is operative to suppress certain of the matrix elements relative to B/sub ij/. The nuclear parameter Y (Kotani's notation) was found to be 0.69 plus or minus 0.06. This agrees well with the value which results from the measured spectrum shape factor. (auth)|
|Learning Resource Type||Article|
|Publisher Department||Indiana Univ., Bloomington|
|Organization||Indiana Univ., Bloomington|
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