CO2 laser scattering technique for studying Langmuir turbulence spectra
Vyacheslavov, L. N. ; Kruglyakov, Eh. P. ; Losev, M. V. ; Sanin, A. L.
[S.l.] : American Institute of Physics (AIP)
Published 1993
[S.l.] : American Institute of Physics (AIP)
Published 1993
| ISSN: |
1089-7623
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
Electrical Engineering, Measurement and Control Technology
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| Notes: |
A 12-channel system for resolving either the ω or k spectra of plasma Langmuir turbulence is developed. The direct detection system is operated with a scattering linewidth of order 100 GHz at scattering angles ranging from 10−1 to 10−3 rad. Stray light rejection of up to 13 orders of magnitude is provided by an ammonia-filled gas cell. It is possible to vary the absorption frequency width from 20 MHz to 5 GHz keeping absorption in the ammonia line center constant. The ω and k spectra of Langmuir turbulence excited in the plasma by a high-current relativistic electron beam are measured via the technique described.
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| Type of Medium: |
Electronic Resource
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| URL: |