Development and Operation of High-throughput Accurate-wavelength Lens-based Spectrometer
Authors: Ronald E. Bell
Abstract: A high-throughput spectrometer for the 400-820 nm wavelength range has been developed for charge
exchange recombination spectroscopy or general spectroscopy. A large 2160 mm-1 grating is matched with
fast f /1.8 200 mm lenses, which provide stigmatic imaging. A precision optical encoder measures the grating
angle with an accuracy < 0.075 arc seconds. A high quantum efficiency low-etaloning CCD detector allows
operation at longer wavelengths. A patch panel allows input fibers to interface with interchangeable fiber
holders that attach to a kinematic mount behind the entrance slit. Computer-controlled hardware allows
automated control of wavelength, timing, f-number, automated data collection, and wavelength calibration.
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Submitted to: Review of Scientific Instruments (June, 2014) Presented at: High Temperature Plasma Diagnostics Conference,
Atlanta, GA (June 1-5, 2014)
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Download PPPL-5033 (pdf 6 MB 3pp)
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