Published November 2016 | Version v1
Journal article Metadata-only

Far-infrared tangential interferometer/polarimeter design and installation for NSTX-U

Creators

  • 1. Department of Mechanical and Aerospace Engineering, University of California, Davis, California 95616 (United States)
  • 2. Department of Applied Science, University of California, Davis, California 95616 (United States)
  • 3. Department of Electrical and Computer Engineering, University of California, Davis, California 95616 (United States)
  • 4. General Atomics, San Diego, California 92121 (United States)
  • 5. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540 (United States)

Description

The Far-infrared Tangential Interferometer/Polarimeter (FIReTIP) system has been refurbished and is being reinstalled on the National Spherical Torus Experiment—Upgrade (NSTX-U) to supply real-time line-integrated core electron density measurements for use in the NSTX-U plasma control system (PCS) to facilitate real-time density feedback control of the NSTX-U plasma. Inclusion of a visible light heterodyne interferometer in the FIReTIP system allows for real-time vibration compensation due to movement of an internally mounted retroreflector and the FIReTIP front-end optics. Real-time signal correction is achieved through use of a National Instruments CompactRIO field-programmable gate array.

Additional details

Identifiers

DOI
10.1063/1.4960415;

Publishing Information

Journal Title
Review of Scientific Instruments
Journal Volume
87
Journal Issue
11
Journal Page Range
vp.
ISSN
0034-6748
CODEN
RSINAK

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48041171
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CONTROL SYSTEMS; ELECTRON DENSITY; ELECTRONS; FEEDBACK; INTERFEROMETERS; NSTX DEVICE; OPTICS; PLASMA; POLARIMETERS; SIGNALS; SPHERICAL CONFIGURATION; VISIBLE RADIATION
Descriptors DEC
CLOSED PLASMA DEVICES; CONFIGURATION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FERMIONS; LEPTONS; MEASURING INSTRUMENTS; RADIATIONS; SPHEROMAK DEVICES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Notes
(c) 2016 Author(s)