现场校准试验用便携式γ射线照射装置研制

固定式环境γ辐射剂量率监测仪表是承担环境连续监测任务的主要设备，这类仪表通常不便于拆卸和安装，而且送检周期较长（一周左右），影响了连续监测点数据的连续性。为了固定式仪表的按期校准，结合蒙卡方法研制了便携式γ射线照射装置，利用PTW剂量计对辐射场进行标定，最后利用便携式照射装置对固定式环境γ辐射剂量率监测仪表进行现场校准实验。

Development of Portable Gamma Ray Irradiation Facility for On-site Calibration

Fixed environmental gamma radiation dose rate monitoring instrument is the main equip-ment to undertake environmental continuous monitoring tasks, such instrument is usually not easy to re-move and install, and the submission of a longer period （ about a week） , affecting the continuity of the continuous monitoring data. For the on time calibration of fixed environmental gamma radiation dose rate monitoring instrument, combined with the Monte Carlo method developed a portable 137 Cs irradiation de-vice, PTW dosimeter was used to measure dose rate of the radiation field. Finally, portable radiation de-vice was used to carry out on-site calibration experiments for the fixed environmental gamma radiation dose rate monitoring instrument.