FINE STRUCTURE EFFECTS IN THE FISSION OF U$sup 23$$sup 5$
Journal Article
·
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
By the use of a Frisch-gridded double ionization chamber the energy and mass distribution of U/sup 235/ fission fragments under thermal neutron fission were studied in coincidence with relatively high-energy prompt-fission gamma rays. The data were electronically analyzed and the results printed on paper tape, transferred to IBM cards, and analyzed by an IBM 7074 computer. Runs were taken for fission fragments in coincidence with prompt-fission gamma 's> 2 Mev and gamma 's> 3 Mev and the results were compared with fission fragments corresponding to all gamma rays. Pronounced structural effects were noted in the kineticenergy distribution and in the mass ratio, the magicnumber nucleus N = 82, Z = 50 preferentially emitting higher energy gamma rays. The symmetric fission yield was found to increase the gamma -ray energy, thus offering the possibility that the extra excitation energy of symmetric fission fragments may be carried off in the form of higher energy gamma rays. (auth)
- Research Organization:
- Pennsylvania State Univ., Iniversity Park
- NSA Number:
- NSA-17-038131
- OSTI ID:
- 4658182
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 132; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
STUDIES OF U$sup 235$ FISSION IN COINCIDENCE WITH PROMPT FISSION $gamma$- RAYS
FISSION FRAGMENT VELOCITY DISTRIBUTION AND COINCIDENT GAMMA SPECTRA FOR Cf$sup 25$$sup 2$
ALPHA-PARTICLE-INDUCED FISSION OF Th$sup 230$, Th$sup 232$, AND U$sup 23$$sup 3$
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1962
·
OSTI ID:4007897
FISSION FRAGMENT VELOCITY DISTRIBUTION AND COINCIDENT GAMMA SPECTRA FOR Cf$sup 25$$sup 2$
Technical Report
·
Fri Oct 30 23:00:00 EST 1959
·
OSTI ID:4258405
ALPHA-PARTICLE-INDUCED FISSION OF Th$sup 230$, Th$sup 232$, AND U$sup 23$$sup 3$
Journal Article
·
Sun Feb 09 23:00:00 EST 1964
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4087849