论文标题
L-Shell X射线转换的激光辐照锡和银箔的产量
L-shell X-ray conversion yields for laser-irradiated tin and silver foils
论文作者
论文摘要
我们已经采用了Vulcan激光设备来生成激光等离子体X射线源以用于光电子化实验。纳米秒激光脉冲，强度$ {10}^{15} $ w {cm} $^{ - 2} $用于照射覆盖在parylene底物上的薄薄Ag或sn Foil靶标，并记录了$ 3.3-4.4 $ kev范围内的L-Shell排放量。与SN相比，实验结果和仿真结果均显示AG的激光更高，而AG的X射线转化率较高，我们的模拟表明产量大约高于实验中发现的倍数。尽管详细的角度数据在实验中无法获得，但模拟表明该发射在激光辐照的一侧是各向同性的，但是在目标的非辐照方面显示了几乎余弦变化，如先前的工作中所见。
We have employed the VULCAN laser facility to generate a laser plasma X-ray source for use in photoionisation experiments. A nanosecond laser pulse with an intensity of order ${10}^{15}$ W{cm}$^{-2}$ was used to irradiate thin Ag or Sn foil targets coated onto a parylene substrate, and the L-shell emission in the $3.3-4.4$ keV range was recorded for both the laser-irradiated and non-irradiated sides. Both the experimental and simulation results show higher laser to X-ray conversion yields for Ag compared with Sn, with our simulations indicating yields approximately a factor of two higher than found in the experiments. Although detailed angular data were not available experimentally, the simulations indicate that the emission is quite isotropic on the laser-irradiated side, but shows close to a cosine variation on the non-irradiated side of the target as seen experimentally in previous work.
