Measurement and uncertainty propagation of the (gamma,n) reaction cross-section of Ni-58 and Co-59 at 15 MeV bremsstrahlung

作者：Ghosh Reetuparna; Lawriniang Bioletty; Badwar Sylvia; Yerraguntla Santhi Sheela; Naik Haladhara; Patil Bhushankumar J.; Naik Yeshwant; Suryanarayana Saraswatula Venkata; Jyrwa Betylda; Ganesan Srinivasan

来源：Radiochimica Acta, 2018, 106(5): 345-354.

DOI：10.1515/ract-2017-2855

• Photonuclear reaction cross-section
• bremsstrahlung
• coincidence summing
• ratio measurement technique
• covariance analysis

Activation cross-section of photon-induced reaction on structural materials Ni-58 and Co-59 was measured at the bremsstrahlung endpoint energy 15 MeV from an S band electron linac. The uncertainties in the (gamma,n) reaction cross-section of both Ni-58 and Co-59 were estimated by using the concept of covariance analysis. The cross-section of Ni-58(gamma,n)Ni-57 reaction in the present work is slightly lower than the previous experimental data and the TENDL-2015 data. The cross-section of Co-59(gamma,n)Co-58 reaction has been measured for the first time. However, the present experimental data of Co-59(gamma,n)Co-58 reaction is very low in comparison to the TENDL-2015 and JENDL/PD-2004 data.

• 出版日期2018-5