Measurement of flux-weighted average cross sections of $$^{\mathrm {{nat}}}\hbox {In}(\upgamma ,\hbox {xn})$$ reactions and isomeric yield ratios of $$^{{112\mathrm {mg},111\mathrm {m},\mathrm {g},110\mathrm {m},\mathrm {g}}}$$ In with bremsstrahlung

Autor: Haladhara Naik, Moo-Hyun Cho, Sung-Chul Yang, Sung-Gyun Shin, Gui Nyun Kim, Thi Hien Nguyen, Md. Shakilur Rahman, Kwangsoo Kim, Yong-Uk Kye
Rok vydání: 2020
Předmět:
Zdroj: The European Physical Journal A. 56
ISSN: 1434-601X
1434-6001
DOI: 10.1140/epja/s10050-020-00245-2
Popis: The flux-weighted average cross sections of $$^{\mathrm {nat}}\hbox {In}(\upgamma ,x\hbox {n}$$ ) reactions and isomeric yield ratios of $$^{112\mathrm {m,g}}\hbox {In}$$ , $$^{111\mathrm {m,g}}\hbox {In}$$ , and $$^{110\mathrm {m,g}}\hbox {In}$$ were measured with the bremsstrahlung end-point energies of 50, 60, and 70 MeV using an activation and off-line $$\upgamma $$ -ray spectrometric technique at the Pohang Accelerator Laboratory (PAL), Korea. It was observed that the average cross sections of the $$^{\mathrm {nat}}\hbox {In}(\upgamma ,\hbox {xn})$$ reactions increase with bremsstrahlung energy up to the Gaint Dipole Resonance (GDR) region. Thereafter, it shows a small decrease trend with bremsstrahlung energy due to the opening of another reaction channel. The isomeric yield ratios of same product in the $$(\upgamma ,\hbox {n})$$ , (n,2n), (p,x), ( $$\upalpha ,\hbox {x})$$ , and $$(^{{3}}\hbox {He},\hbox {x})$$ reactions for various targets show that the spin of the target nucleus plays a vital role besides the effect of excitation energy and input angular momentum in determining the isomeric yield ratios.
Databáze: OpenAIRE
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