强脉冲软X光辐照薄塑料闪烁体发光特性研究
Linear luminescence for thin plastic scintillator under intense soft X-ray irradiation
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摘要: 介绍了Z-pinch实验用软X光功率仪的测量原理，利用“强光一号”产生的强脉冲软X光对薄塑料闪烁体(40 mm×0.1 mm)进行了辐照。实验中，采用两套软X光功率仪并安装在同一个大法兰面上，其中一套作为标准系统，参数保持不变，另一套系统的狭缝宽度逐渐增加，以改变软X光辐照到闪烁体上的能量通量密度。测量了软X光的辐射功率，由此计算得到在强脉冲软X光辐照下发光线性输出时能量通量密度下限，为1.47×105 W/cm2，为以后在Z-pinch物理诊断中合理安排探测系统提供了实验依据，使诊断结果更加合理和准确。Abstract: The basic principle of soft X-ray power meter is introduced in the paper and the experimental process and the result of thin plastic scintillator linear luminescence under intense soft X-ray irradiation are described. A range of flux density of energy for thin plastic scintillator linear luminescence under intense soft X-ray irradiation is included. The upper limit of the flux density is 1.47×105 W/cm2.
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Key words:
- z-pinch /
- linear luminescence /
- soft x-ray power meter /
- plastic scintillator /
- flux of energy
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