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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1989),
  • paper WF5

A 100-J tuned laser for ionization of lithium in a PBFA-II ion source

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Abstract

A high power tuned dye laser system has been developed as part of a system to produce a Li+ ion source for the Sandia PBFA-II ion accelerator. The present ion diode requires a plasma source ~1 mm thick with a density of 1017 cm−3 over a total area of ~1000 cm2. These ion source requirements and a technique for producing the thin layer of lithium vapor were discussed previously.1 The ionization of this layer by laser ionization by on-resonant saturation was demonstrated in a small scale experiment. Detailed modeling of the ionization process has generated the photon requirements at the anode of 3 × 104 W/cm2, 1 μs pulse length, and a bandwidth of 0.3 nm at the lithium resonant wavelength of 670.8 nm.

© 1989 Optical Society of America

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