5 October 2011 Heating of high energy density plasmas using EUV and x-ray lasers
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Abstract
Heating of high energy density plasmas using extreme ultra-violet (EUV) and x-ray lasers is examined. Our modeling studies show that solid carbon and iron can be heated by focused X-ray laser pulses of irradiance 1017 Wcm-2, duration 100 fs so that after a picosecond or so equilibration, LTE plasmas of temperatures up to 400 eV are produced in a uniform solid density of thickness close to one micron. Solid target heating experiments can also be carried out with laboratory based EUV lasers, but the temperatures achieved are < 20 eV. The equilibrium temperature reached with EUV and X-ray laser heating is strongly dependent on the photon energy, while the focused irradiance determines the thickness of heated material.
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G. J. Tallents, D. S. Whittaker, L. A. Wilson, E. Wagenaars, "Heating of high energy density plasmas using EUV and x-ray lasers", Proc. SPIE 8140, X-ray Lasers and Coherent X-ray Sources: Development and Applications IX, 81400F (5 October 2011); doi: 10.1117/12.892764; https://doi.org/10.1117/12.892764
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