Plasma turbulence imaging using high-power laser Thomson scattering

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Description

The 2-D structure of plasma density turbulence in a magnetically confined plasma can potentially be measured using a Thomson scattering system made from components of the Nova laser of LLNL. For a plasma such as NSTX at PPPL, the laser would form an {approximately}10 cm wide plane sheet beam passing vertically through the chamber across the magnetic field. The scattered light would be imaged by a CCD camera viewing along the direction of the magnetic field. The laser energy required to make 2-D images of density turbulence is in the range 1--3 kJ, which can potentially be obtained from a ... continued below

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451 Kilobytes pages

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Zweben, S.J.; Caird, J.; Davis, W.; Johnson, D.W. & LeBlanc, B.P. June 8, 2000.

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Description

The 2-D structure of plasma density turbulence in a magnetically confined plasma can potentially be measured using a Thomson scattering system made from components of the Nova laser of LLNL. For a plasma such as NSTX at PPPL, the laser would form an {approximately}10 cm wide plane sheet beam passing vertically through the chamber across the magnetic field. The scattered light would be imaged by a CCD camera viewing along the direction of the magnetic field. The laser energy required to make 2-D images of density turbulence is in the range 1--3 kJ, which can potentially be obtained from a set of frequency-doubled Nd:Glass amplifiers with diameters in the range of 208--315 mm. A laser pulse width of 100 nsec would be short enough to capture the highest spatial frequency components of the expected density fluctuations.

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451 Kilobytes pages

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INIS; OSTI as DE00757323

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  • Other Information: PBD: 8 Jun 2000

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  • Report No.: PPPL-3461
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/757323 | External Link
  • Office of Scientific & Technical Information Report Number: 757323
  • Archival Resource Key: ark:/67531/metadc702310

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 8, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 15, 2016, 9:51 p.m.

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Zweben, S.J.; Caird, J.; Davis, W.; Johnson, D.W. & LeBlanc, B.P. Plasma turbulence imaging using high-power laser Thomson scattering, report, June 8, 2000; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc702310/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.