[1M15-19] JENDL-5 Examination

[1M17] Sensitivity analysis for the new STACY with JENDL-5 library

*Hoang Hai Nguyen¹, Tomoaki Watanabe¹, Satoshi Gunji¹, Kenya Suyama¹ (1. JAEA)

Keywords:New STACY, sensitivity, JENDL-5, Serpent

A previous study showed observable k_eff differences in the new STACY analyses when using JENDL-4.0 and JENDL-5. Which isotopes and reactions contribute significantly to this difference is an essential issue for experimental designs of the new STACY. In this research, the sensitivity coefficients of k_eff due to the cross-section perturbation for the new STACY with JENDL-5 were estimated by the Serpent code to indicate the significantly contributed nuclides and reactions.
The calculated results showed that ²³⁵U, ²³⁸U, ¹⁶O, ¹H and the S (α, β) contribute significantly on the difference between new STACY analyses with JENDL-4.0 and JENDL-5.