A METHOD FOR DETERMININGnDETAILED ROD WORTH PROFILESnAT LOW POWER IN THEnFAST TEST REACTOR

摘要

A method for obtaining a detailed rod worth profile at low power for a slow control rod insertion is presented. The accuracy of the method depends on a preparatory experiment in which the test rod is dropped quickly to yield, upon analysis, the magni¬tude of the rod worth and an effective source value. These numbers are employed to initialize the inverse kinetics analysis for the slow insertion. Corrections for changes in detection efficiency are not included for the simulated experiments.