Laser wavefront analyzer for imploding plasma density and current profile measurements

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1784527· OSTI ID:20636649

Qi, N; Prasad, R R; Campbell, K; Coleman, P; Krishnan, M; Weber, B V; Stephanakis, S J; Mosher, D ^[1]

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1. Alameda Applied Sciences Corp., San Leandro, California (United States)

The laser wavefront analyzer (LWA) consists of a polarized laser beam pulse that traverses an imploding z-pinch, and a microlens array that focuses the laser beam into a large number (10{sup 4}) of very tiny spots. LWA image analysis determines the refractive bending angles (due to density gradients) and Faraday rotation angles (due to the magnetic field-density integral) throughout the plasma cross section. Electron density and current distributions are derived from LWA data in an imploding gas-puff z-pinch plasma.

• OSTI ID: 20636649
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 75; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM PULSERS
CROSS SECTIONS
ELECTRON DENSITY
FARADAY EFFECT
IMAGES
LASERS
MAGNETIC FIELDS
PLASMA DENSITY
PLASMA DIAGNOSTICS