Rapid Scan Spectrometers for the Diagnostics of Transient Plasmas

Abstract

An observation that a symmetrical configuration of off-axis paraboloidal mirrors produces an excellent image of an extended slit, while an unsymmetrical configuration produces poor images, has led to a modification of the original Sandia rapid scan spectrometer and to the design of a new wide range, rapid scan spectrometer. The new instrument employs a high speed rotating mirror in a Littrow arrangement to obtain a spectral scan speed double that of the original spectrometer; e.g., with a 600-lines/mm grating, a spectral scan speed of ~410 Å/μsec is obtained at 1000 rps. Techniques for obtaining an accurate calibration of the spectral scan speed are described, and some examples of spectra which were recorded from a xenon and a hydrogen plasma are shown.

© 1968 Optical Society of America

A Multiple-Scan, Rapid-Scan Spectrograph for Electron Density Measurements in Transient Plasmas

R. A. Hill
Appl. Opt. 4(12) 1593-1595 (1965)

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P. Buchhave and C. H. Church
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Performance of a Commercial Rapid Scanning Spectrometer in Emission and Absorption

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A High Resolution Rapid-Scanning Spectrometer

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Rapid Advances in Rapid Scan Spectroscopy

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