Plasma evolution in laser-irradiated hollow microcylinders
Balmer, J. E. ; Weber, R. ; Cunningham, P. F. ; Lädrach, P.
In: Laser and Particle Beams, 1990, vol. 8, no. 1-2, p. 327-337
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- Hollow microcylinder targets, 200-300 μm in diameter, have been internally irradiated at up to 5 · 1014 W/cm2 with Nd:glass laser pulses directed through an axial entrance slit. The plasma evolution in the interior of the cavities was diagnosed with a pinhole imaging X-ray streak camera and a Nomarski-type interferometer. Plasma collision near the center of the cylinder is observed about 300 ps after the irradiating laser pulse. The experimental results are confirmed by a one-dimensional Eulerian fluid code