Test and evaluation of the space telescope imaging spectrograph (STIS) engineering model units of the MAMA detectors

Charles L. Joseph; Vic S. Argabright; Richard L. Bybee; Anthony C. Danks; Bruce E. Woodgate

doi:10.1117/12.186625

14 September 1994 Test and evaluation of the space telescope imaging spectrograph (STIS) engineering model units of the MAMA detectors

Charles L. Joseph, Vic S. Argabright, Richard L. Bybee, Anthony C. Danks, Bruce E. Woodgate

Author Affiliations +

Proceedings Volume 2282, Ultraviolet Technology V; (1994) https://doi.org/10.1117/12.186625
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The space telescope imaging spectrograph (STIS), a next-generation instrument for the Hubble Space Telescope, has fabricated several engineering model units (EMUs) of the multi-anode microchannel array (MAMA) detectors. Good tube yields have been realized in producing these EMUs and some have performances suitable for flight. One of these EMU MAMAs has been operated for substantial periods of time after having undergone both shake and thermal environmental testing. A second will undergo similar environmental tests later this year. An earlier demonstration tube has been used extensively for over a year to evaluate STIS gratings in the Goddard Diffraction Grating Evaluation Facility. The STIS MAMA detectors have now matured to the point where half of the total test and evaluation effort is concerned with the characterization of subtle processes, a level of characterization needed to achieve data with a signal-to-noise ratio in excess of 100. We present test results from these EMUs including detailed analysis of data collected with vacuum chambers specifically designed for the evaluation of these detectors.

Citation Download Citation

Charles L. Joseph, Vic S. Argabright, Richard L. Bybee, Anthony C. Danks, and Bruce E. Woodgate "Test and evaluation of the space telescope imaging spectrograph (STIS) engineering model units of the MAMA detectors", Proc. SPIE 2282, Ultraviolet Technology V, (14 September 1994); https://doi.org/10.1117/12.186625

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