ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A high-throughput broadband (1–24-A(ring)) x-ray spectrometer has been demonstrated on the divertor injection tokamak experiment (DITE) tokamak. A hexagonal rotor supporting six diffractors may be driven in several modes, ranging from a full spectral survey at ∼10 Hz to a stationary, monochromator mode. Wavelength resolution, 500(approximately-less-than)λ/Δλ(approximately-less-than)1000, is governed by gridded or slotted collimators. A multiwire gas proportional counter provides a measure of energy discrimination, which together with the large instrument aperture, gives sufficient sensitivity and signal/noise ratio to allow measurement of the continuum radiation from the tokamak. The instrument has a self-contained vacuum system which allows full spatial scans of the DITE plasma. Data acquisition and drive mechanisms for the rotor and filter selection, are controlled remotely from a computer. Results are presented of fast spectral surveys and time evolution of impurity emission during impurity injection.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1138716
Permalink
