CUMULATIVE YIELDS OF THE HEAVY FRAGMENTS IN U$sup 235$ THERMAL NEUTRON FISSION
Isotopic abundances of Ba, Ce, Nd, Sm, and Cu formed in the thermal neutron fission of U/sup 235/ were studied using a mass spectrometer. Suitable analyses of very young and old fission products made possible the normalization of the isotopic abundances of each of these elements through isobaric nucleides. The relative cumulative fission yield of every fission chain from mass 137 to 154 was obtained. These yields with relative yields of masses 131 to 137, when normalized to total 100%, give the absolute cumulative yield of all significant heavy-fragment chains. (auth)
- Research Organization:
- McMaster Univ., Hamilton, Can.
- NSA Number:
- NSA-16-023079
- OSTI ID:
- 4832875
- Journal Information:
- Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 34
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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