ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A near-normal incidence high throughput spectrometer with a flat multilayer mirror (MLM) as the dispersive element has been built and operated on the Texas Experimental Tokamak (TEXT). Using a Mo/B4C MLM that has a reflectivity of 20–30% and a bandpass of 4–9 A(ring) (FWHM), the instrument has a wavelength range of 90–180 A(ring). The spectra obtained with this instrument have been compared to an artificial spectrum based upon a collisional-radiative model. From this comparison it is possible to identify the dominant titanium emission lines responsible for the broadband shape of the low-resolution experimental spectrum. This work is part of our continuing development of simple, near-normal incidence high throughput spectrometers for tokamak plasma diagnostics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1141831