We reveal from simulations that in longitudinally pumped Ni-like Mo x-ray lasers, deformation of the temporal gain profile can occur, causing the x-ray laser pulse to have a steep rising edge. This is shown to be due to the rapid change in the inverse bremsstrahlung absorption when the main picosecond pulse pumps the cold preplasma.
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| http://dx.doi.org/10.1103/PhysRevE.66.047402 | DOI Listing |
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