DETERMINATION OF ~(99)Mo CUMULATIVE YIELD OF ~(235)U FISSION BY THE SPONTANEOUS FISSION NEUTRONS OF ~(252)Cf SOURCE[J]. Journal of Nuclear and Radiochemistry, 1985, 07(4): 234-234.
    Citation: DETERMINATION OF ~(99)Mo CUMULATIVE YIELD OF ~(235)U FISSION BY THE SPONTANEOUS FISSION NEUTRONS OF ~(252)Cf SOURCE[J]. Journal of Nuclear and Radiochemistry, 1985, 07(4): 234-234.

    DETERMINATION OF ~(99)Mo CUMULATIVE YIELD OF ~(235)U FISSION BY THE SPONTANEOUS FISSION NEUTRONS OF ~(252)Cf SOURCE

    • Gross fission product gamma-ray spectra are obtained using a large volume Ge(Li) detector,and then,the total energy peaks corresponding to 99Mo 739 keV and 95Zr 756 keV gamma-rays are analysed. The R value, which is the ratio of 99Mo relative cumulative yields for fast and thermal fission of 235U,are determined.Absolute cumulative yield of 99Mo is obtained based on the normalization of the R Value to the reference values of FPYs concerned.Up to now,the published data can be divided into two groups:the one,~6.40,and the other,~6.10.Our result,6.12(1±2.8%),agrees well with the latter.
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