Abstract
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 Å (FWHM), the instrument has a wavelength range of 90-180 Å. 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.
Original language | English |
---|---|
Pages (from-to) | 2786-2788 |
Number of pages | 3 |
Journal | Review of Scientific Instruments |
Volume | 61 |
Issue number | 10 |
DOIs | |
State | Published - 1990 |
Externally published | Yes |