新型塑料闪烁体探测器对脉冲X射线响应的研究

Study on the response of a new plastic scintillator detector to pulsed X-ray

射线装置产生的X射线脉冲周期长短不一,很多装置会产生短周期脉冲X射线,特别是医院X射线诊断机等。这些装置的最小脉冲宽度为ns级,能量从几到几百KeV。现有的辐射剂量计无法准确测量这种短周期脉冲X射线。因此,文章研究提出一种新的快速响应和更大探测能量的塑料闪烁体探测器针对医院X射线诊断机的检测需求,并与实际应用情况相结合,在对各种探测器进行性能分析的基础上,选用新型塑料闪烁体探测器进行脉冲X射线响应的研究。经过试验,该研究所设计的新型塑料闪烁体探测器检测系统可以较准确地测量医院X射线诊断机的短周期脉冲X射线。

The X-ray pulse cycles produced by ray devices are different,many devices produce short-cycle pulse X-ray,especially hospital X-ray diagnostic machines,etc.The minimum pulse width of these devices is ns level,and the energy ranges from several to several hundred Kev.The existing radiation dosimeter cannot accurately measure such short-cycle pulse X-ray.Given the low accuracy of radiation dosimeter,this paper proposes a new plastic scintillator detector for the detection requirements of hospital X-ray diagnostic machine,and on the basis of performance analysis of various detectors,a new plastic scintilator detector is used for the pulse X-ray response.After testing,the new plastic scintillator detector detection system can measure the X-ray of hospital X-ray diagnosis.