High resolution two-dimensional near field images of neon-like soft x- ray lasers
- Lawrence Livermore National Lab., CA (United States)
- Max-Planck-Institut fuer Quantenoptik, Garching (Germany)
We discuss high resolution two-dimensional near-field images of the neon-like nickel and germanium X-ray laser. The Asterix iodine laser, using a prepulse 5.23 ns before the main pulse, was used to irradiate slab targets. Our imaging diagnostic consisted of a concave multilayer mirror that imaged the X-ray laser line (with a magnification of ten) onto a backside illuminated X-ray CCD detector. A great deal of structure was observed in the near field images, particularly in the J=0-1 emission. We observed a large difference in the spatial dependence of the J=0-1 and J=2-1 lines of germanium, with the J=2-1 emission peaking farther away from the original target surface. The prepulse level was varied and observed to have a significant effect on the spatial dependence of the germanium and nickel laser lines. A larger prepulse moved the peak emission farther away from the target surface. These measurements are generally consistent with hydrodynamic simulations coupled with atomic kinetics.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Commission of the European Communities, Brussels (Belgium)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 283648
- Report Number(s):
- UCRL-JC--123515; CONF-9606137--3; ON: DE96013482
- Country of Publication:
- United States
- Language:
- English
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Two-dimensional near-field images of the neonlike germanium soft-x-ray laser
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