Super-asymmetric fission of heavy nuclei induced by intermediate energy protons
| Autor: | Deppman, A., Andrade-II, E., Guimaraes, V., Karapetyan, G. S., Tavares, O. A. P., Balabekyan, A. R., Demekhina, N. A., Adam, J., Garcia, F., Katovsky, K. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Phys. Rev. C 88 (2013) 064609 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.88.064609 |
| Popis: | In this work we present the results for the investigation of intermediate-mass fragment (IMF) production with the proton-induced reaction at 660 MeV on 238U and 237Np target. The data were obtained with the LNR Phasotron U-400M Cyclotron at Joint Institute for Nuclear Research (JINR), Dubna, Russia. A total of 93 isotopes, in the mass range of 30 < A < 200, were unambiguously identified with high precision. The fragment production cross sections were obtained by means of the induced-activation method in an off-line analysis. Mass-yield distributions were derived from the data and compared with the results of the simulation code CRISP for multimodal fission. A discussion of the super-asymmetric fragment production mechanism is also given. Comment: 20 pages, 2 figure. 2 tables |
| Databáze: | arXiv |
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