DIRECT-FLOW GAS GM COUNTER WITH OPEN WINDOW AND METHOD FOR OBSERVATION OF IONIZING RADIATION Russian patent published in 1999 - IPC

FIELD: monitoring of ionizing radiation. SUBSTANCE: device has conducting chamber, which has several inputs for liquid material, and a hole calibrated for said radiation, unit for supply of liquid, which is connected to said inputs, at least one insulated anode, which is located in chamber, cap, which is transparent to radiation and is mounted tightly enough over said hole, electric power supply, which is connected to chamber, and unit, which detects electric pulses and which is connected to chamber in order to detect electric pulses which are generated in chamber upon ionizing radiation entering chamber. EFFECT: basically uniform gas supply into chamber with basically constant flow speed due to uniform flow of liquid with basically constant usage along complete chamber due to basically uniform gas pumping into each input along complete unit for liquid supply, decreased purging time required for measuring ionizing radiation. 15 cl, 2 dwg