The multichannel triple-laser interferometer/polarimeter system at RTP

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147602· OSTI ID:453337

Rommers, J H; Donne, A J; Karelse, F A ^[1]; Howard, J ^[2]

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1. FOM---Instituut voor Plasmafysica Rijnhuizen, Association Euratom-FOM, 3430 BE Nieuwegein (The Netherlands)
2. Plasma Research Laboratory, Australian National University, Canberra A.C.T. 0200 (Australia)

A 19-channel combined interferometer and polarimeter system has recently become operational at the Rijnhuizen Tokamak Project (a=0.164 m, R=0.72 m, B{sub tor}{le}2.5 T, I{sub p}{le}150 kA, plasma pulse duration {le}500 ms), in order to determine the poloidal magnetic field and plasma density distribution simultaneously. The method is based on the separate propagation of two counter-rotating, circularly polarized probing waves, and enables high temporal resolution measurements of both the interferometric and the polarimetric phase change using only one detector per line of sight. In this article a thorough discussion of the (polarization-related) optical, electronic, and computational aspects of the system will be presented.{copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 453337
• Report Number(s): CONF-960543--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 68; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
INTERFEROMETERS
LASER RADIATION
OPERATION
PLASMA DENSITY
PLASMA DIAGNOSTICS
POLARIMETERS
TOKAMAK DEVICES
WAVE PROPAGATION