[3D09-13] Experimental Analysis Method Development

[3D10] Reactivity estimation of UTR-KINKI subcritical cores

Estimation based on power profile in quasi-steady state

*Yuichi Yamane¹, Shohei Araki¹, Atsushi Sakon² (1. Japan Atomic Energy Agency, 2. Kindai Univ.)

Keywords:subcritical, reactivity estimation, quasi-steady state, power profile, UTR-KINKI

A new reactivity estimation method was applied to the data obtained from some subcritical cores of UTR-KINKI for comparison to other existing methods. The estimated reactivity value for about several dollars subcritical cores by using the method based on the power profile in quasi-steady state showed almost the same result as other methods such as Feynman-α and source jerk.