[2K04-09] Experimental Analysis Method

[2K05] The estimation of the power profile and reactivity by using cubic spline interpolation

*Yuichi Yamane¹ (1. Japan Atomic Energy Agency)

Keywords:subcritical, reactivity estimation, quasi-steady state, power profile, spline interpolation

For the purpose of estimating the reactivity of a subcritical system based on the power profile in a quasi-static state after a reactivity insertion, a new method has been developed. By applying it to the data simulating neutron count rate, it was confirmed that a cubic spline curves converges in good accuracy to the true profile of power and its time-derivative.