Far‐infrared laser scattering in the ACT‐I toroidal device

J. Goree; D. K. Mansfield; M. Ono; K. L. Wong

doi:10.1116/1.573120

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Far‐infrared laser scattering in the ACT‐I toroidal device

Journal article

Open access

Peer reviewed

Far‐infrared laser scattering in the ACT‐I toroidal device

J. Goree, D. K. Mansfield, M. Ono and K. L. Wong

Journal of vacuum science & technology. A, Vacuum, surfaces, and films, Vol.3(3), pp.1074-1076

05/1985

DOI: 10.1116/1.573120

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Abstract

A far‐infrared laser scattering diagnostic has been built for the ACT‐I toroidal device. The optical system uses a passively stabilized 447‐μm CH3I laser. A polyethylene etalon is the beam splitter. The vacuum windows are plastic (TPX), which we found has the vacuum property Q 6.5×10− 9 Torr l/s/cm2. Using paraboloidal and ellipsoidal mirrors for detection optics improves the signal strength and allows a better rf enclosure design for the detector. The diagnostic was tested by scattering from an ion Bernstein wave, a technique which can be used for ion temperature diagnostics.

LASER RADIATION

ATC DEVICES

OPTICAL SYSTEMS

LIGHT SCATTERING

ION WAVES

PLASMA DIAGNOSTICS

FAR INFRARED RADIATION

Details

Title: Subtitle: Far‐infrared laser scattering in the ACT‐I toroidal device
Creators: J. Goree - Princeton University
D. K. Mansfield - Princeton University
M. Ono - Princeton University
K. L. Wong - Princeton University
Resource Type: Journal article
Publication Details: Journal of vacuum science & technology. A, Vacuum, surfaces, and films, Vol.3(3), pp.1074-1076
DOI: 10.1116/1.573120
ISSN: 0734-2101
eISSN: 1520-8559
Number of pages: 3
Language: English
Date published: 05/1985
Academic Unit: Physics and Astronomy; Mechanical Engineering
Record Identifier: 9984429024302771

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