Abstract
The distribution of fragment masses formed in nuclear fission is one of the most striking features of the process. Such measurements are very important to understand the shape evolution of the nucleus from ground state to scission through intermediate saddle points. The fission fragment mass distributions, generally obtained via conventional methods (i.e., by measuring the energy and/or the velocity of the correlated fission fragments) are limited to a mass resolution of 4–5 units. On the other hand, by employing the γ-ray spectroscopy, it is possible to estimate the yield of individual fission fragments. In this work, determination of the fission fragment mass distribution by employing prompt γ-ray spectroscopy is described along with the recent results on 238U(18O, f) and 238U(32S, f) systems.
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Acknowledgements
The authors would like to thank the collaborators of the fission fragment spectroscopy investigations. The help and cooperation of IUAC, New Delhi and TIFR, Mumbai Pelletron-Linac staff during the experiment is gratefully acknowledged.
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DANU, L.S., BISWAS, D.C., NAYAK, B.K. et al. Fission fragment mass distributions via prompt γ-ray spectroscopy. Pramana - J Phys 85, 379–384 (2015). https://doi.org/10.1007/s12043-015-1052-2
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DOI: https://doi.org/10.1007/s12043-015-1052-2