amp;gamma;-RAY DECAY ACCELERATOR OF NEUTRON-IRRADIATED HAFNIUM CONTROL ROD

摘要

PROBLEM TO BE SOLVED: To reduce cost required for the long-term storage of activated hafnium generated from a control rod in a nuclear reactor.;SOLUTION: An isomer being Hf 178m2 is generated from Hf subjected to neutron irradiation. The decay of Hf 178m2 is induced by decelerating the γ-ray radiated from the isomer to make the γ-ray collide with Hf 178m2, and thereby progressed earlier than spontaneous decay.;COPYRIGHT: (C)2010,JPO&INPIT