Fission cross section and fragment angular distribution in gold fission induced by 55 MeV alpha particles using solid state nuclear track detectors |
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Authors: | R K Jain J Rama Rao S K Bose |
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Institution: | (1) Physics Department, Banaras Hindu University, 221 005 Varanasi, India |
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Abstract: | The angular distribution of fission fragments in alpha induced fission has been studied at an incident energy of 55 MeV in197Au target. The relative differential fission cross sections were measured at different angles between 10° and 170° and the
resulting angular distributions fitted by least squares method with Legendre polynomials. In the present work, a correction
for the self-scattering and self-absorption of fission fragments in the target itself was applied and a target of 3 mg/cm2 was used to get good statistics. The anisotropy for 55 MeV alpha induced fission of gold was 2·83±0·43 and the fission cross
section calculated by integrating the measured angular distributions over all the solid angles was 5·2±1.0 mb, confirming
the value of 4·0±0·05 mb reported by Burnettet al but contrary to the high value of 10±3 mb reported by Ralarosyet al. |
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Keywords: | Angular distribution fission cross section anisotropy alpha particle nuclear track detector |
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