WIDE RANGE NOBLE GAS RADIATION MONJTOR

摘要

A sample chamber has the noble gases of an effluent first pumped through it from a nuclear process. A quantifying detector of noble gases in the effluent has a predetermined range. A control system is actuated by the detector at the setpoint of a predetermined count rate to terminate the flow of the effluent from the first pump to the sample chamber. A second pump is connected to the chamber to evacuate the chamber upon termination of the first flow into the chamber. A restricted passage is connected between the chamber and the effluent which draws the effluent through the chamber by the second pump for so long as the quantity of noble gases in the effluent is above the predetermined setpoint.