A Two-Dimensional Intensified Photodiode Array For Imaging Spectroscopy

P. D. Tennyson; K. Dymond; H. W. Moos; P. D. Feldman; E. F. Mackey

doi:10.1117/12.968145

13 October 1986 A Two-Dimensional Intensified Photodiode Array For Imaging Spectroscopy

P. D. Tennyson, K. Dymond, H. W. Moos, P. D. Feldman, E. F. Mackey

Proceedings Volume 0627, Instrumentation in Astronomy VI; (1986) https://doi.org/10.1117/12.968145
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

Abstract

The Johns Hopkins University is currently developing an instrument to fly aboard NASA's space shuttle as a SPARTAN payload in the late 1980's. This SPARTAN free flyer will obtain spatially resolved spectra of faint extended emission line objects in the wavelength range 750 -1150 Å at ~2 Å resolution. The targets selected for the first mission of the payload include the Io plasma torus around Jupiter and the Cygnus Loop supernova remnant. The use of two-dimensional photon counting detectors will give simultaneous coverage of the 400 A spectral range and the 9 arcminute spatial resolution along the spectrometer slit. The progress towards the flight detector is reported here with preliminary results from a laboratory breadboard detector, and a comparison with the one-dimensional detector developed for the Hopkins Ultraviolet Telescope (HUT) 3. A hardware digital centroiding algorithm has been successfully implemented. The system is ultimately capable of 15 pm resolution in two dimensions at the image plane and can han-dle continuous counting rates of up to 8000 counts s -1.

Citation Download Citation

P. D. Tennyson, K. Dymond, H. W. Moos, P. D. Feldman, and E. F. Mackey "A Two-Dimensional Intensified Photodiode Array For Imaging Spectroscopy", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968145

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