Determination of photonuclear cross section of 58Co(\(\gamma ,\)xp) reaction in the energy region 27–32 MeV via the surrogate ratio method

Abstract

The photonuclear reaction cross section of ⁵⁸Co(\(\gamma ,\)xp) reaction has been measured for the first time by employing the surrogate reaction technique. The cross section of the photonuclear reaction is obtained in the energy region 27–32 MeV. The compound nucleus ⁵⁸\(\hbox {Co}^{*}\) was populated using the transfer reaction ⁵⁶Fe(⁶Li,\(\alpha \)) at \(\hbox {E}_{lab}=\) 35.9 MeV. To calculate the surrogate ratio, ⁶¹Ni(\(\gamma \),xp) was selected as the reference reaction and the corresponding compound nucleus ⁶¹\(\hbox {Ni}^{*}\) was populated using the transfer reaction ⁵⁹Co(⁶Li,\(\alpha \)) at \(\hbox {E}_{lab}=\) 40.5 MeV. Reference data taken from the recommended IAEA photonuclear database, which adopted the KAERI data in this case, have been used to determine the desired cross section. Compound nuclear cross section calculations have been done using the statistical nuclear reaction code TALYS 1.96.