Laser Heating of Magnetically Confined Plasmas for X-Ray Production.
Final rept. on Phase 3,
MATHEMATICAL SCIENCES NORTHWEST INC BELLEVUE WASH
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Quantitative experiments were carried out on laser heating magnetically confined neon and krypton plasma columns. Approximately 100 J in 50 nsec and up to 300 J in 500 nsec of 10.6 micrometers radiation was used to heat 5 mm diameter plasmas at 10 to the 18th powercc electron densities to up to 200 eV electron temperatures. Intense soft radiation during the ionization process has limited heating wave propagation into the plasma column to a few centimeters, and restricted the 1 keV K-shell emission from He-like neon to several MW. A detailed hydrodynamic and atomic physics program developed for this project gives excellent agreement with the observed radiation levels. Approximately 10 conversion efficiencies of laser energies to 2 keV x-radiation are predicted at the highest conventional magnetic fields and 1 kJ laser energies.
- Lasers and Masers
- Plasma Physics and Magnetohydrodynamics