EXPERIMENTAL INVESTIGATION ON IRRADIATION DAMAGE OF X-RAY REFLECTION MIRRORS
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摘要: 叙述了利用LF-11装置的线聚焦来模拟LF-12装置的线聚焦辐照Ge靶荡实验,测得沿激光焦线的轴向上所产生的X光和散射光强度,由此获得在LF-12装置上所完成的“类Ne-GeX光激光双程放大实验”中,起反射作用的Si/Mo多层膜X光反射镜在受到113MW/cm2X光和227MW/cm2散射光辐照时,其有效寿命为440ps,在50MW/cm2X光和101MW/cm2散射光辐照时,其有效寿命为700ps。Abstract: In this paper, we discuss the experiment conducted onLF-11 laser facility. The aim is to study the irradiation damage of X -ray reflction mirrors that were used in the double -pass amplification experiment of Ne-like Ge X -ray lasers . The results indicated that the mirror's life time was 440ps when it was irradiated by 113MW/cm2 X rays and 227 MW/cm2 scattered laser light. When the intensities of X rays and scattered laser light on the mirror were 50 MW/cm2 and 101 MW/cm2, respectively, the mirror's life time was 700ps.
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