| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology which is also capable of measuring the concentration and the leakage amount of radioactive gas leaked from a waste body that discharges low-concentration radioactive gas which is difficult to be measured by the prior arts. <P>SOLUTION: A first radioactive gas leakage amount measuring apparatus 10A comprises a container 12 which is connected with a suction line 13 via a valve V3 and accommodates a waste body 2 therein, a container 16 which is connected with the container 12 via a valve V2, a container 17 which is connected with the container 16 via a valve V4, a flow passage which is formed by connecting the container 17 and a vacuum pump 18 which is connected with the container 17 via a valve V1 and vacuums the container 17, a pressure transmitter 21 which measures pressure within the flow passage, a device 43 which obtains a measurement by performing signal processing on an output signal of a radioactive gas detector 23 that detects radiation from the gas stored in the container 16, and a computer 45 which measures the leakage amount of radioactive gas leaked from a waste body container 2b by performing arithmetic processing on the measurement obtained by the device 43. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
