Alcator C vertical viewing electron cyclotron emission diagnostic

Journal Article · Fri Aug 01 00:00:00 EDT 1986 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1138806· OSTI ID:5642296

Kato, K; Hutchinson, I H

Electron cyclotron emission measured vertically through the center of a tokamak plasma yields detailed information about the electron velocity distribution. A diagnostic developed for this purpose on Alcator C tokamak uses specialized focusing optics to obtain a well-collimated viewing chord, a compact viewing dump made of Pyrex or Macor to reduce the effects of wall reflection and depolarization, and a rapid-scan polarizing Michelson interferometer InSb detector system for the spectrum measurement; all constrained by the limited access and the compact size of Alcator C. Results of diffraction analysis are used to evaluate the theoretical performance of the optical system.

• Research Organization: Plasma Fusion Center and Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
• OSTI ID: 5642296
• Journal Information: Rev. Sci. Instrum.; (United States), Vol. 57:8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALCATOR DEVICE
ELECTRON SPECTRA
PLASMA DIAGNOSTICS
INTERFEROMETERS
OPTICAL SYSTEMS
ELECTRON CYCLOTRON-RESONANCE
DEPOLARIZATION
INTERFEROMETRY
PERFORMANCE
POLARIZATION
CLOSED PLASMA DEVICES
CYCLOTRON RESONANCE
MEASURING INSTRUMENTS
RESONANCE
SPECTRA
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700102* - Fusion Energy- Plasma Research- Diagnostics