论文部分内容阅读
为解决放射性固体镭源“上门送校”的繁杂手续和运输风险,消除固体镭源校准过程中的安全隐患,采用密封型,受环境影响小,长期稳定性好,适于野外测量的井型电离室代替平板电离室,研制出便携式固体镭源现场校准装置,实现对固体镭源当量镭含量、中心点、24h氡泄露量等校准项目的现场快速、高准确校准测量,解决了对固体镭源现场或者“上门”校准问题,用新装置与原装置对固体镭源进行校准比对试验,二者相对标准偏差最大为2.1%,结果表明现场校准技术及装置是可行的。
In order to solve the complicated procedures and transportation risks of radioactive solid-state radium source, send to school, and eliminate the potential safety hazard during the calibration of solid-state radium source, it adopts sealed type and has little environmental influence, long-term stability and is suitable for field measurement Well-type ionization chamber instead of the flat ionization chamber, developed a portable solid-state radium field calibration device to achieve a solid-state radium equivalent radium content, the center point, 24h radon leakage and other calibration projects on-site quick and accurate calibration measurement to solve the Solid-state radium site or “home ” calibration problem, with a new device and the original device on the solid-state radium calibration comparison test, the maximum relative standard deviation of 2.1%, the results show that on-site calibration techniques and devices is feasible.