Application of x-ray lasers to probe high density plasmas
- Lawrence Livermore National Lab., CA (United States); and others
The reliability and characteristics of collisionally pumped soft x-ray laser make them ideal for a wide variety of plasma diagnostics. These systems now operate over a wavelength range extending from 35 to 400 {angstrom} and have output energies as high as 10 mJ in 15 ps pulses. The beam divergence of these lasers is less than 15 mrad and they have a typical linewidth of {Delta}{lambda}/{lambda}-10{sup {minus}4} making them the brightest xuv sources available. In this talk the author describes the use of x-ray lasers to probe high density plasmas using a variety of diagnostic techniques. Taking advantage of recently developed multilayer beamsplitters they have constructed and used a Mach-Zehnder interferometer operating at 155 {angstrom} to probe 1--3 mm size laser produced plasmas with peak electron densities of 4 {times} 10{sup 21} cm{sup {minus}3}. A comparison of the results with computer simulations will be presented. They have also used x-ray lasers and a multilayer mirror imaging system to study hydrodynamic imprinting of laser speckle patterns on directly driven thin foils with 1--2 {micro}m spatial resolution. Results from these experiments as well as the use of x-ray laser moire deflectometry to measure the electron density profile in ICF hohlraums will be discussed.
- Sponsoring Organization:
- Lawrence Livermore National Lab., CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 435489
- Report Number(s):
- CONF-960634-; TRN: IM9710%%147
- Resource Relation:
- Conference: 1996 IEEE international conference on plasma science, Boston, MA (United States), 3-5 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of IEEE conference record -- Abstracts: 1996 IEEE international conference on plasma science; PB: 324 p.
- Country of Publication:
- United States
- Language:
- English
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