Density profile measurement using a multichannel difluoromethane laser interferometer system on ATF

C. H. Ma; L. R. Baylor; D. P. Hutchinson; M. Murakami; J. B. Wilgen

doi:10.1063/1.1143518

Density profile measurement using a multichannel difluoromethane laser interferometer system on ATF

C. H. Ma, L. R. Baylor, D. P. Hutchinson, M. Murakami, J. B. Wilgen

Fusion Energy Division

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Abstract

Recent results of the electron density profile measurement on the Advanced Toroidal Facility are presented. A multichannel difluoromethane laser interferometer system has been routinely employed to study density evolution in electron cyclotron heated as well as neutral-beam-heated plasma discharges with gas fueling and pellet injection. A chordal inversion code has been developed, and has been used successfully to reconstruct the asymmetric density profiles. Cross-correlation of density profiles measurements among far-infrared interferometer, Thomson scattering, the heavy-ion beam probe, and the fast reciprocating Langmuir probe has been achieved. Radial density profiles measured by the four diagnostics are generally in good agreement and are hollow profiles under most experimental conditions.

Original language	English
Pages (from-to)	4981-4982
Number of pages	2
Journal	Review of Scientific Instruments
Volume	63
Issue number	10
DOIs	https://doi.org/10.1063/1.1143518
State	Published - 1992

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title = "Density profile measurement using a multichannel difluoromethane laser interferometer system on ATF",

abstract = "Recent results of the electron density profile measurement on the Advanced Toroidal Facility are presented. A multichannel difluoromethane laser interferometer system has been routinely employed to study density evolution in electron cyclotron heated as well as neutral-beam-heated plasma discharges with gas fueling and pellet injection. A chordal inversion code has been developed, and has been used successfully to reconstruct the asymmetric density profiles. Cross-correlation of density profiles measurements among far-infrared interferometer, Thomson scattering, the heavy-ion beam probe, and the fast reciprocating Langmuir probe has been achieved. Radial density profiles measured by the four diagnostics are generally in good agreement and are hollow profiles under most experimental conditions.",

author = "Ma, {C. H.} and Baylor, {L. R.} and Hutchinson, {D. P.} and M. Murakami and Wilgen, {J. B.}",

year = "1992",

doi = "10.1063/1.1143518",

language = "English",

volume = "63",

pages = "4981--4982",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

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T1 - Density profile measurement using a multichannel difluoromethane laser interferometer system on ATF

AU - Ma, C. H.

AU - Baylor, L. R.

AU - Hutchinson, D. P.

AU - Murakami, M.

AU - Wilgen, J. B.

PY - 1992

Y1 - 1992

N2 - Recent results of the electron density profile measurement on the Advanced Toroidal Facility are presented. A multichannel difluoromethane laser interferometer system has been routinely employed to study density evolution in electron cyclotron heated as well as neutral-beam-heated plasma discharges with gas fueling and pellet injection. A chordal inversion code has been developed, and has been used successfully to reconstruct the asymmetric density profiles. Cross-correlation of density profiles measurements among far-infrared interferometer, Thomson scattering, the heavy-ion beam probe, and the fast reciprocating Langmuir probe has been achieved. Radial density profiles measured by the four diagnostics are generally in good agreement and are hollow profiles under most experimental conditions.

AB - Recent results of the electron density profile measurement on the Advanced Toroidal Facility are presented. A multichannel difluoromethane laser interferometer system has been routinely employed to study density evolution in electron cyclotron heated as well as neutral-beam-heated plasma discharges with gas fueling and pellet injection. A chordal inversion code has been developed, and has been used successfully to reconstruct the asymmetric density profiles. Cross-correlation of density profiles measurements among far-infrared interferometer, Thomson scattering, the heavy-ion beam probe, and the fast reciprocating Langmuir probe has been achieved. Radial density profiles measured by the four diagnostics are generally in good agreement and are hollow profiles under most experimental conditions.

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DO - 10.1063/1.1143518

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SP - 4981

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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 10

ER -

Density profile measurement using a multichannel difluoromethane laser interferometer system on ATF

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