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Design and first plasma measurements of the ITER-ECE prototype radiometer

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4960163· OSTI ID:1371880
 [1];  [2];  [2];  [3];  [4];  [4]
  1. Univ. of Texas, Austin, TX (United States). Inst. for Fusion Studies; General Atomics
  2. Univ. of Texas, Austin, TX (United States). Inst. for Fusion Studies
  3. ITER Organization, Gandhinagar (India). Inst. for Plasma Research
  4. Virginia Diodes, Inc., Charlottesville, VA (United States)
+ Show Author Affiliations
On ITER, second harmonic optically thick electron cyclotron emission (ECE) in the range of 220-340 GHz will supply the electron temperature (Te). In order to investigate the requirements and capabilities prescribed for the ITER system, a prototype radiometer covering this frequency range has been developed by Virginia Diodes, Inc. The first plasma measurements with this instrument have been carried out on the DIII-D tokamak, with lab bench tests and measurements of third through fifth harmonic ECE from high Te plasmas. At DIII-D the instrument shares the transmission line of the Michelson interferometer and can simultaneously acquire data. In our comparison of the ECE radiation temperature from the absolutely calibrated Michelson and the prototype receiver we show that the ITER radiometer provides accurate measurements of the millimeter radiation across the instrument band.
Research Organization:
General Atomics, San Diego, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FC02-04ER54698; FG02-97ER54415
OSTI ID:
1371880
Alternate ID(s):
OSTI ID: 22596540
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 87; ISSN 0034-6748; ISSN RSINAK
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (3)

Fusion Plasma Diagnostics with mm-Waves book August 2013
High resolution electron cyclotron emission temperature profile and fluctuation diagnostic for Alcator C-Mod journal January 1999
Control and dissipation of runaway electron beams created during rapid shutdown experiments in DIII-D journal July 2013

Cited By (1)

Electron cyclotron emission based q -profile measurement and concept for equilibrium reconstruction journal June 2019

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY