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16 August 2000 Mechanically actuated reconfigurable slits (MARS) for visible and infrared multi-object spectrographs
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Abstract
Mechanically Actuated Reconfigurable Slits (MARS) provide a remote means of creating and reconfiguring multi-object spectrograph slits. The MARS design provides 99 individually positionable variable-width slits over a 180 mm square telescope focal plane. It offers fast, remote configurable, suitable for optical and IR ground and space based multi- object spectrographs. The slit apertures are arranged in three columns, to optimize the placement of the spectra on the detector. Two distinct MARS designs are presented, mechanically actuated strips and mechanically actuated rolls. The methods configure the slits by translating thin strips of material across the telescope focal pane. Slits are formed either by an aperture cut in the strip or by bringing two separate strips together head-to-head.
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Scott C. Roberts, Carrie Abbott, Andre Anthony, Daniel Booy, Robert Gaunt, Alexis Hill, Geoff Kabush, Andrew McIlwain, Karen Taylor, Ben Townsend, and Robert Vrooman "Mechanically actuated reconfigurable slits (MARS) for visible and infrared multi-object spectrographs", Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); https://doi.org/10.1117/12.395419
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