A linear equation of characteristic time profile of power in subcritical quasi-steady state |
| |
| Authors: | Yuichi Yamane |
| |
| Affiliation: | 1. Nuclear Safety Research Center, Japan Atomic Energy Agency , Naka-gun, Japan yamane.yuichi@jaea.go.jp |
| |
| Abstract: | ABSTRACT An equation of power in subcritical quasi-steady state has been derived based on one-point kinetics equations for the purpose of utilizing it for the development of timely reactivity estimation from complicated time profile of neutron count rate. It linearly relates power, P, to a new variable q, which is a function of time differential of the power. It has been confirmed that the points (q, P) calculated by using one-point kinetics code, AGNES, are perfectly in a line described by the new equation and that the points (q, P) calculated from transient subcritical experiment data measured by using TRACY made a line with a slope indicated by the new equation. |
| |
| Keywords: | Subcriticality reactivity measurement power profile one-point kinetics nuclear criticality safety reactor kinetics |
|
|
