DISTRIBUTION OF THE KINETIC ENERGY AMONG THE FRAGMENTS IN THE THERMAL- NEUTRON-INDUCED TERNARY FISSION OF U$sup 23$$sup 5$ (in Russian)
Journal Article
·
· Atomnaya Energ.
OSTI ID:4171987
Precise data are developed on linetic energy distribution among fragments of ternary fission. An ionization chamber equipped with a filter and designed for separately recording of fission fragments and long-range alpha particles was used. Some 17644 ternary fissions were recorded, and the fragment energy distributions were plotted with consideration for recording probabilities. The probable energies of the heavy and light fragments are 5.7 plus or minus 0.5 and 8.1 plus or minus 0.3 Mev, smaller than for the binary fission. The 13.8-Mev drop in kinetic energy cannot be assigned to the reduced charge of fragments due to alpha particle emission. The appearance of fragment pairs with masses of 98 to 134, 96to 136, and 100 to 132 are considered as probable as the appearance of masses 100 and 136 in binary. fission. With the above assumptions the mean energy of fragment excitation in ternary fission should be 5.87 Mev smaller than in binary. The haif-width distribution of light and heavy fragments in ternary fission is 1.1 plus or minus 0.5 and 4.3 plus or minus 1.0 Mev less than the respective halfwidths in binary fission. The kinetic energy distribution of ternary fission fragments is both displaced and different tn shape. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-14-008075
- OSTI ID:
- 4171987
- Journal Information:
- Atomnaya Energ., Journal Name: Atomnaya Energ. Vol. Vol: 7
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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