Hard-X-Ray Measurements of 10.6-μm Laser-Irradiated Targets
Hard-X-Ray Measurements of 10.6-μm Laser-Irradiated Targets
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10.6 μm 激光照射目标的硬 X 射线测量
DOI:
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发表时间:
1981
期刊:
影响因子:
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通讯作者:
D. Gerke
中科院分区:
文献类型:
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作者:
W. Priedhorsky;D. Lier;R. Day;D. Gerke
The first measurements of high-energy x-ray emission ($hensuremath{
u}ensuremath{sim}30ensuremath{-}300$ keV) by high-$Z$ microballoon targets irradiated at $5ifmmode imeselse exttimesfi{}{10}^{14}lensuremath{phi}l2ifmmode imeselse exttimesfi{}{10}^{16}$ W/${mathrm{cm}}^{2}$ by 10.6-ensuremath{mu}m laser light are reported. An exponential spectrum with a slope $k{T}_{H}ensuremath{sim}250$ keV provides the best fit to spectrometer data at ${ensuremath{phi}}_{l}={10}^{16}$ W/${mathrm{cm}}^{2}$. The hard-x-ray yield indicates that a substantial fraction, probably between 10% and 100%, of the absorbed laser energy is converted to hot electrons. The slope $k{T}_{H}$ is proportional to the fastest ion energy.