低温氢带靶加速multi-MeV质子的首次验证
First demonstration of multi-MeV proton acceleration from a cryogenic hydrogen ribbon target
摘要：
我们显示了有效的激光驱动质子加速到14 MeV的50 $μ$ m厚的低温氢带。将脉冲长度为$\approx$ 350 fs、每脉冲能量为8 J的LULI的短脉冲激光ELFIE的脉冲引导到靶上。的结果进行了比较，从金属和塑料箔具有不同厚度的质子谱，并显示出类似的良好性能，无论是在最大能量，以及在质子数。因此，这种目标类型是一个有前途的候选人的实验与高重复率激光系统。
英文摘要：
We show efficient laser driven proton acceleration up to 14MeV from a 50 $μ$m thick cryogenic hydrogen ribbon. Pulses of the short pulse laser ELFIE at LULI with a pulse length of $\approx$ 350 fs at an energy of 8 J per pulse are directed onto the target. The results are compared to proton spectra from metal and plastic foils with different thicknesses and show a similar good performance both in maximum energy as well as in proton number. Thus, this target type is a promising candidate for experiments with high repetition rate laser systems.
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