Uncertainty propagation and covariance analysis of 181Ta(n,{\gamma})182Ta nuclear reaction

Namrata Singh; Mahesh Choudhary; A. Gandhi; Aman Sharma; Mahima Upadhyay; Punit Dubey; Akash Hingu; G. Mishra; Sukanya De; A. Mitra; L. S. Danu; Ajay Kumar; R. G. Thomas; Saurav Sood; Sajin Prasad; A. Kumar

arXiv · 2412.01385

Uncertainty propagation and covariance analysis of 181Ta(n,{\gamma})182Ta nuclear reaction

Namrata Singh·Mahesh Choudhary·A. Gandhi·Aman Sharma·Mahima Upadhyay·Punit Dubey·Akash Hingu·G. Mishra·Sukanya De·A. Mitra·L. S. Danu·Ajay Kumar·R. G. Thomas·Saurav Sood·Sajin Prasad·A. Kumar

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Abstract

The neutron capture cross-section for the $^{181}$Ta(n,$\gamma$)$^{182}$Ta reaction has been experimentally measured at the neutron energies 0.53 and 1.05 MeV using off-line $\gamma$-ray spectrometry. $^{115}$In(n,n'$\gamma$)$^{115m}$In is used as a reference monitor reaction cross-section. The neutron was produced via the $^{7}$Li(p,n)$^{7}$Be reaction. The present study measures the cross-sections with their uncertainties and correlation matrix. The self-attenuation process, $\gamma$-ray correction factor, and low background neutron energy contribution have been calculated. The measured neutron spectrum averaged cross-sections of $^{181}$Ta(n,$\gamma$)$^{182}$Ta are discussed and compared with the existing data from the EXFOR database and also with the ENDF/B-VIII.0, TENDL-2019, JENDL-5, JEFF-3.3 evaluated data libraries.

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Namrata Singh, Mahesh Choudhary, A. Gandhi, Aman Sharma, Mahima Upadhyay, Punit Dubey, Akash Hingu, G. Mishra, Sukanya De, A. Mitra, L. S. Danu, Ajay Kumar, R. G. Thomas, Saurav Sood, Sajin Prasad, A. Kumar. 2024-12-02. Uncertainty propagation and covariance analysis of 181Ta(n,{\gamma})182Ta nuclear reaction. https://arxiv.org/abs/2412.01385

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