| Autor: |
RAJ PRAKASH, H. G., SANJEEV, GANESH, VIJAY KUMAR, K. B., HARISH KUMAR, H. G., SIDDAPPA, K., NAYAK, B. K., SAXENA, A. |
| Předmět: |
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| Zdroj: |
International Journal of Modern Physics E: Nuclear Physics; Nov2011, Vol. 20 Issue 11, p2361-2375, 15p |
| Abstrakt: |
Photofission cross-section of 238U was measured using bremsstrahlung radiation energy 7.4-9.0 MeV with energy step of 0.4 MeV by employing Lexan polycarbonate film as solid state nuclear track detector (SSNTD). The photon intensity from the Microtron accelerator at a distance of 15 cm from the bremsstrahlung converter (tantalum target) facility was estimated to be 1010 photons/sec using the code EGS-4. In this paper, details of the fission fragment angular distribution measurements of 238U target using Lexan polycarbonate have been discussed. The photofission cross-section was calculated using the angular distribution of fission fragments and the results were compared with those obtained using the code EMPIRE-II and various barrier parameters of the RIPL-1, RIPL-2 libraries and with the new analytical fission barrier formula based on the Hugenholtz-Van Hove theorem. The present experimental measurements were in good agreement with the results obtained from the Empire-II code predictions for potential parameter taken from RIPL-1 and a newly developed analytical fission barrier formula. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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