Abstract
The isomeric yield ratios for the natAg(γ,xn)104m,g,106m,gAg reactions with the end-point bremsstrahlung energies of 45- and 55-MeV have been determined by the off-line γ-ray spectrometric technique using 100 MeV electron linac at Pohang accelerator laboratory, Korea. The present data were compared with literature data in comparable compound nucleus from the natAg(γ,xn), natPd(p,xn), and 103Rh(α,xn) reactions to examine the effects of an excitation energy and an input angular momentum. It is observed that the isomeric yield ratios of 104,106Ag in natAg(γ,xn), natPd(p,xn) and 103Rh(α,xn) reactions increase with the end-point bremsstrahlung energy, proton and alpha energy, which indicate the role of excitation energy. It is also found that for the similar compound nucleus at same excitation energy, the isomeric yield ratio of 104m,gAg is higher in the natPd(p,xn) and 103Rh(α,xn) reactions than those in natAg(γ,xn) reaction, which indicate the effect of an input angular momentum.
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Acknowledgments
The authors are thankful to the staff of electron linac at Pohang Accelerator Laboratory (PAL), Korea for the excellent operation and their support to carry out the experiments. This research partly was supported by the National Research Foundation of Korea (NRF) through a grant provided by the Ministry of Science, ICT & Future Planing (2010-0021375), by the Brain Pool Program (Project No. 122S-1-3-0436) of Kyungpook National University, and by the Institutional Activity Program of Korea Atomic Energy Research Institute (KAERI).
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Tatari, M., Kim, G., Naik, H. et al. Measurement of isomeric yield ratios of the 104m,g,106m,gAg in the 45- and 55-MeV bremsstrahlung induced reactions of natural silver. J Radioanal Nucl Chem 300, 269–275 (2014). https://doi.org/10.1007/s10967-014-3008-2
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DOI: https://doi.org/10.1007/s10967-014-3008-2