Collection apparatus of retained fission gas which was released by dissolution of a spent fuel

摘要

PURPOSE: A residual nucleus fission gas collecting device is provided to prevent the malfunction of a dissolution apparatus by quantitatively collecting residual nucleus fission gas. CONSTITUTION: A glove box(20) is connected to a dissolution apparatus of nuclear fuel which is used. A gas capture site(40) is installed within the glove box. The gas capture site collects residual nucleus fission gas which is flowed in after being emitted from the dissolution apparatus. A controller(90) controls an operation of the gas capture site. A mass flow controller is installed in a collecting line and senses thermal conductivity of the residual nucleus fission gas and electrically controls flow rate.