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- Title
Production of the ( I = 19/2) high-spin isomer Cs in photonuclear reactions.
- Authors
Gangrsky, Yu. P.; Zhemenik, V. I.; Kolesnikov, N. N.; Lukashik, V. G.; Markov, B. N.; Myshinskiy, G. V.; Maslov, O. D.; Bozhikov, G. A.
- Abstract
The yields of Cs nuclei in a high-spin (19/2) isomeric state and of nuclei neighboring it were measured for photonuclear reactions of the ( γ, f) and ( γ, α) types. The experiments in question were performed by using bremsstrahlung from a microtron at the maximum electron energy of 25 MeV. The product nuclei were identified by their half-lives and by the lines of gamma radiation emitted in their decay, and the reaction yields R were determined by the ratios of the intensities of these lines to the bremsstrahlung flux. The cross sections for isomer production were calculated, and the angular momenta of product nuclei immediately before the cascade of gamma transitions populating the ground or an isomeric nuclear state were evaluated on the basis of these results. An enhanced yield of the high-spin isomer of Cs in the fission reaction in relation to the respective ( γ, α) reaction and in relation to the results of the calculations is found.
- Subjects
NUCLEAR reactions; RADIATION; COLLISIONS (Nuclear physics); PARTICLES (Nuclear physics); ANGULAR momentum (Nuclear physics)
- Publication
Physics of Atomic Nuclei, 2010, Vol 73, Issue 9, p1477
- ISSN
1063-7788
- Publication type
Article
- DOI
10.1134/S1063778810090012