Development of determination method of 93Mo content in metal waste generated at the Japan Power Demonstration Reactor

Abstract

A separation method of Mo from Nb, Zr, and the matrix elements of rubble waste was modified to determine the content of 93Mo in metal waste. A separation scheme to treat 1 g of metal waste was established by optimizing the amount of ascorbic acid, the rinsing solution, and repeating of the procedure. A thin-layer source was prepared using direct drop deposition and evaporation to measure 93Mo content. Finally, 93Mo content in the metal waste generated at the Japan Power Demonstration Reactor was analyzed using the developed method.