Windowless vacuum ultraviolet collimator

Eric B. Burgh; Stephan Robert McCandliss; Russell Pelton; Kevin France; Paul D. Feldman

doi:10.1117/12.450064

10 December 2001 Windowless vacuum ultraviolet collimator

Eric B. Burgh, Stephan Robert McCandliss, Russell Pelton, Kevin France, Paul D. Feldman

Proceedings Volume 4498, UV/EUV and Visible Space Instrumentation for Astronomy and Solar Physics; (2001) https://doi.org/10.1117/12.450064
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

We describe a vacuum collimator that we have assembled to characterize the windowless ultraviolet properties of a sounding rocket spectrographic telescope. The collimator comprises a Cassegrain telescope, with SiC coated optics, used in the pre-flight calibration phase of the Far Ultraviolet Spectroscopic Explorer, and vacuum skins provided by NASA/Wallops. The collimator focal plane has a three-axis motorized stage, which we have used for the precision placement of a knife edge focal locator along with pinhole and flat-field sources. We describe the focusing procedure and present the results of a number of experiments whereby the collimator, telescope and spectrograph point spread functions were determined and a spectro-spatial flat-field of the detector was acquired.

Citation Download Citation

Eric B. Burgh, Stephan Robert McCandliss, Russell Pelton, Kevin France, and Paul D. Feldman "Windowless vacuum ultraviolet collimator", Proc. SPIE 4498, UV/EUV and Visible Space Instrumentation for Astronomy and Solar Physics, (10 December 2001); https://doi.org/10.1117/12.450064

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