ECE diagnostic for the TARA tandem mirror machine using a fast‐scanning Michelson interferometer

This ECE (electron cyclotron emission) diagnostic utilizes a fast‐scanning Michelson interferometer to determine two parameters, the temperature and the loss cone angle, of the distribution function of the hot electrons (T≳100 keV) generated in the axisymmetric plug plasma of the TARA tandem mirror...

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Veröffentlicht in:	Rev. Sci. Instrum.; (United States) 1986-08, Vol.57 (8), p.1965-1967
Hauptverfasser:	Guharay, S. K., Boyd, D. A., Ellis, R. F.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700102 - Fusion Energy- Plasma Research- Diagnostics BREMSSTRAHLUNG CHARGED-PARTICLE TRANSPORT DESIGN DISTRIBUTION FUNCTIONS ELECTROMAGNETIC RADIATION ELECTRON DENSITY FABRICATION FUNCTIONS INTERFEROMETERS LOSS CONE MAGNETIC MIRRORS MEASURING INSTRUMENTS MICHELSON INTERFEROMETER OPEN PLASMA DEVICES PLASMA DIAGNOSTICS PLUGGING RADIATION TRANSPORT RADIATIONS SYNCHROTRON RADIATION TANDEM MIRRORS TARA DEVICES THERMONUCLEAR DEVICES
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Beschreibung
Zusammenfassung:	This ECE (electron cyclotron emission) diagnostic utilizes a fast‐scanning Michelson interferometer to determine two parameters, the temperature and the loss cone angle, of the distribution function of the hot electrons (T≳100 keV) generated in the axisymmetric plug plasma of the TARA tandem mirror device. The radiation transport system employs a lens relay and a low‐pass grating filter in order to transmit the synchrotron radiation over a spectral range of 2.9–18.6 cm− 1. This enables us to study the emitted radiation spectrum up to the 40th harmonic of the electron–cyclotron frequency in the plug plasma (B=5 kG). Details of the design principles and the development of the diagnostic at TARA will be presented.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.1138808