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Proceedings Paper

Selection of the infrared detectors for Wide Field Camera 3 on the Hubble Space Telescope
Author(s): Massimo Robberto; Massimo Stiavelli; Sylvia M. Baggett; Bryan Hilbert; John W. MacKenty; Randy A. Kimble; Robert J. Hill; David A. Cottingham; Gregory Delo; Scott D. Johnson; Wayne Landsman; Eliot M. Malumuth; Elizabeth J. Polidan; Anne Marie Russell; Augustyn Waczynski; Edward Wassell; Yiting Wen; Allan K. Haas; John T. Montroy; Eric C. Piquette; Kadri Vural; Craig A. Cabelli; Donald N. B. Hall
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Paper Abstract

Wide Field Camera 3 is a fourth generation instrument for the Hubble Space Telescope (HST), to be installed during the next HST Servicing Mission 4. For its infrared channel Rockwell Scientific Company has developed a new type of HgCdTe 1Kx1K detector, called WFC3-1R, with cutoff wavelength at 1.7μm and 150K operating temperature. The WFC3-IR detectors are based on HgCdTe MBE grown on a CdZnTe substrate and use a new type of multiplexer, the Hawaii-1R MUX. Two flight detectors, a prime and a spare, have been recently selected on the basis of the measures performed at NASA Goddard Research Center - Detector Characterization Laboratory. These parts show quantum efficiency higher than 80% at λ=1.6μm and greater than 40% at λ>1.1μm, readout noise of ~25 e- rms with double correlated sampling, and mean dark current of ~0.04 e/s/pix at 150K. We show that the IR channel of WFC3, equipped with one of these flight detectors, beats the instrument requirements in all configurations and promises to have a discovery efficiency significantly higher than NICMOS. In particular, a two-band wide-area, deep survey made with WFC3 exceeds the discovery efficiency of NICMOS before and after the installation of NCS by a factor of 15 and 10, respectively.

Paper Details

Date Published: 12 January 2004
PDF: 9 pages
Proc. SPIE 5167, Focal Plane Arrays for Space Telescopes, (12 January 2004); doi: 10.1117/12.507334
Show Author Affiliations
Massimo Robberto, Space Telescope Science Institute (United States)
Massimo Stiavelli, Space Telescope Science Institute (United States)
Sylvia M. Baggett, Space Telescope Science Institute (United States)
Bryan Hilbert, Space Telescope Science Institute (United States)
John W. MacKenty, Space Telescope Science Institute (United States)
Randy A. Kimble, NASA Goddard Space Flight Ctr. (United States)
Robert J. Hill, NASA Goddard Space Flight Ctr. (United States)
David A. Cottingham, NASA Goddard Space Flight Ctr. (United States)
Gregory Delo, NASA Goddard Space Flight Ctr. (United States)
Scott D. Johnson, NASA Goddard Space Flight Ctr. (United States)
Global Science and Technology, Inc. (United States)
Wayne Landsman, NASA Goddard Space Flight Ctr. (United States)
Eliot M. Malumuth, NASA Goddard Space Flight Ctr. (United States)
Science Systems and Applications, Inc. (United States)
Elizabeth J. Polidan, NASA Goddard Space Flight Ctr. (United States)
Global Science and Technology, Inc. (United States)
Anne Marie Russell, NASA Goddard Space Flight Ctr. (United States)
Augustyn Waczynski, NASA Goddard Space Flight Ctr. (United States)
Global Science and Technology, Inc. (United States)
Edward Wassell, NASA Goddard Space Flight Ctr. (United States)
Yiting Wen, NASA Goddard Space Flight Ctr. (United States)
Allan K. Haas, Rockwell Scientific Co. (United States)
John T. Montroy, Rockwell Scientific Co. (United States)
Eric C. Piquette, Rockwell Scientific Co. (United States)
Kadri Vural, Rockwell Scientific Co. (United States)
Craig A. Cabelli, Rockwell Scientific Co. (United States)
Donald N. B. Hall, Univ. of Hawaii Institute for Astronomy (United States)


Published in SPIE Proceedings Vol. 5167:
Focal Plane Arrays for Space Telescopes
Thomas J. Grycewicz; Craig R. McCreight, Editor(s)

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