光子计数型CCD测量激光等离子体X射线
Measurement of X ray in interaction of laser plasmas by photon counting CCD
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摘要: 介绍了光子计数型电荷耦合器件(CCD)的工作原理，标定了2.0~30 keV的探测效率。在超强超短激光等离子体相互作用中，实验用靶为复合靶，分别用Cu＋Mo和Al+Cu制作。第1层靶是Cu或Al物质作为电子示踪材料，第2层靶是Mo或Cu物质作为荧光材料，利用光子计数型CCD测量了Mo和Cu的X射线能谱, 同时得到CCD的能量分辨率大于37。该CCD可用于激光等离子体低通量高能X射线测量实验。
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关键词:
- A new technique of single-photon counting X-ray CCD was presented. The detection efficiency in the range from 2 keV to 30 KeV was characterized by several X-ray sources. In the interaction of laser plasmas /
- the layered targets were chosen consisting of 0.1 mm Cu layer coated with 50 mm Mo layer and 0.5 mm Al layer coated with 50 mm Cu layer /
- and the Ka spectra with the Mo layer and the Cu layer were obtained and the results show that the energy resolution of CCD is more than 37.
Abstract: CCD; 探测效率; X射线测量; 激光等离子体-
Key words:
- ccd /
- detection efficiency /
- measurement of x-ray
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