Abstract
The time-stamp structure of the digital data acquisition system of the Indian National Gamma Array (INGA) has been utilized to carry out prompt-delayed coincidence technique for the spectroscopic study of fission fragments. This technique was found to be useful to determine the states above the long-lived isomer (with half-life up to ∼5 μs), present in the fission fragments. The angular correlation of γ-rays, emitted by the fission fragments, has also been used in the present INGA geometry to determine the spins of the de-exciting states.
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Acknowledgements
The authors would like to thank the members of INGA Principal Investigating Coordination Committee and the INGA Collaboration for making the detectors available. The contributions of S Saha, J Sethi, Purnima Singh, D Choudhury, D C Biswas, S Mukhopadhay, L S Danu, S K Tandel and S Hota in the present work are acknowledged. Authors also acknowledge the IUAC group for providing some of the HV units for the clover detectors. This work was partially funded by the Department of Science and Technology, Government of India (No. IR /S2 /PF-03 /2003-II). The authors are also thankful to the Pelletron and LINAC staff for providing excellent beam during the experiment.
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PALIT, R., BISWAS, S. Spectroscopy of fission fragments using prompt-delayed coincidence technique. Pramana - J Phys 85, 395–402 (2015). https://doi.org/10.1007/s12043-015-1054-0
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DOI: https://doi.org/10.1007/s12043-015-1054-0