IMPROVEMENTS IN MICHIGAN STATE UNIVERSITY'S HIGH RESOLUTION NEAR INFRARED SPECTROMETER

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1966

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Ohio State University

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Modifications in the M.S.U. spectrometer have increased its versatility and improved its performance. Details of the design and performance of the following features will be described: water-cooled zirconium arc and carbon rod sources, achromatic fore-optics and polarizer assembly, rotating entrance slit to the monochromator, grating drive assembly, and exit optics which include an alternate path for direct Foucault testing of monochromator adjustment. The overall effect of these features has been to extend the operating range (formerly from $1-3 \mu$) to $6 \mu$, give resolution of $\sim 0.03 cm^{-1}$ at $\sim 4200 cm^{-1}$, and permit frequency measurements reproducible to $\sim 0.002 cm^{-1}$.

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Supported by a grant from the National Science Foundation and by the Air Force Cambridge Research Laboratories. Office of Aerospace Research, U. S. Air Force Contract No. 19(628)4009. J. L. Aubel is now at the University of South Florida, Tampa, Florida.
Author Institution: Department of Physics and Astronomy, Michigan State University

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http://hdl.handle.net/1811/15013

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1960-1969