摘要
连续辐射与脉冲辐射有着较大差异,但当前用于辐射剂量监测的主动式电离辐射剂量仪一般基于稳态辐射场作出刻度,未审其对于短脉冲、高剂量率情形的适用性。为对此问题作出辨析,依托毫秒级脉冲X射线机,搭建脉冲X射线参考辐射场,并选用4款主动式剂量仪进行脉冲X射线响应特性实验。结果表明,在当前技术条件下,主动式剂量仪对于短脉冲、高剂量率场合不甚适用,应推进相关新型设备的研发和校准工作,使辐射场剂量测量和预警得以维系。
There are great differences between continuous radiation and impulse radiation,but the current active ionizing radiation dosimeter used for radiation dose monitoring is generally calibrated based on the steady radiation field,and its applicability to short pulse and high dose rate situations has not been reviewed.In order to distinguish this problem,the reference radiation field of pulsed X-ray is built based on millisecond pulsed X-ray machine,and four active dosimeters are selected for pulsed X-ray response characteristics experiment.The results show that under the current technical conditions,the active dosimeter is not suitable for short pulse and high dose rate occasions,and the research,development and calibration of related new equipment should be promoted to maintain the radiation field dose measurement and early warning.
作者
杨柳
YANG Liu(Dalian Institute of Applied Technology for Nuclear Industry,Dalian,Liaoning Province,116031 China)
出处
《科技创新导报》
2022年第28期20-23,共4页
Science and Technology Innovation Herald
关键词
脉冲X射线
主动式电离辐射剂量仪
辐射场
脉冲响应
Pulsed X-ray
Active ionizing radiation dosimeter
Radiation field
Impulse response
