THE PHOTOFISSION OF Bi, Th AND U BETWEEN 300 AND 1000 MeV
Journal Article
·
· Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B
OSTI ID:4056474
Photofission cross sections for Bi/sup 209/, Th/sup 232/. and U/sup 2/ >s/sup 38/ are studied for photon enengies from 300 to 1000 Mev. Emuisions are exposed to a collimated gamma beam, and the stars which are produced are studied. A discussion of the theory of star production in terms of meson emission and reabsorption is given. The photofission and star production cross sections for the three nuclei under consideration are measured, and the fissionability of the nuclei is calculated. It is suggested that the star production cross sections are enhanced by coherent production of pi /sup 0/ mesons and pi /sup +/ pi /sup -/ pairs. It is observed that while the fissionability is dependent on the nucleus considered, it is independent of the excitation energy of that nucleus. (T.F.H.)
- Research Organization:
- Universita, Naples; and Istituto Nazionale di Fisica Nucleare, Naples
- NSA Number:
- NSA-15-015080
- OSTI ID:
- 4056474
- Journal Information:
- Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10), 19; ISSN NUCIA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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