Pre-equilibrium decay process in the alpha induced reactions of silver isotopes |
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| Affiliation: | 1. Department of Physics, Nigde Ömer Halisdemir University, 51240, Nigde, Turkey;2. Department of Physics, Akdeniz University, 07058, Antalya, Turkey;3. School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK;1. Department of Physics, Aligarh Muslim University, Aligarh, UP-202 002, India;2. Physics Section, Women''s College, Aligarh Muslim University, Aligarh- 202002, India;3. Institute of Physics, Sachivalaya Marg, Bhubaneswar-751005, India;4. Homi Bhaba National Institute, Training School Complex, Anushakti Nagar, Mombai-400085, India;1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, PR China;2. School of Materials Science and Engineering, Central South University, Changsha 410083, PR China;3. Advanced Research Center, Central South University, Changsha 410083, PR China;4. Hunan Provincial Key Laboratory of New Energy Storage and Conversion of Advanced Materials, Hunan University of Science and Technology, Xiangtan 411201, PR China;1. Department of Physics, Sciences Faculty, Golestan University, P.O. Box 49138-15759, Gorgan, Iran;2. Department of Physics, Guangxi Normal University, Guilin 541004, People''s Republic of China |
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| Abstract: | Excitation functions for the reactions 107Ag(α,n)110In, 107Ag(α,2n)109In, 109Ag(α,2n)111In, 109Ag(α,3n)110In and 109Ag(α,4n)109In have been measured from 13 to 50 MeV with the help of the stack-foil technique. Since the silver target used has two odd mass stable isotopes of about equal abundance, 107Ag (51.83%) and 109Ag (48.17%), in some cases the residual nuclei are the same through different reaction channels but the Q-values are different. In these cases the experimental cross-sections are separated out by using the ratio of theoretical cross-sections of the same reaction. The experimental results were compared with calculated values obtained by means of the geometry-dependent hybrid (GDH) model. The initial exciton number n0 = 4 with different configurations was tested. It was found that the configuration (2n + 2p + 0h) appears to give a good fit to the experimental data. |
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