Laboratory and telescope use of the NICMOS2 128 x 128 HgCdTe array
- Author:
- Rieke, G. H.
- Published:
- Oct 1, 1989.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Blessinger, Michael, Rieke, Marcia J., Montgomery, E. F., Vural, Kadri, and Kleinhans, William
Online Version
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- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary:
- The second generation of Hubble Space Telescope (HST) instruments will include a near-infrared instrument. This choice has driven the development of near-infrared arrays to larger sizes and lower read noises. Rockwell International has delivered an array for use in the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) instrument; this array has been dubbed NICMOS2. NICMOS2 is a 128x128 array of HgCdTe diodes In-bonded to a switched MOSFET readout. The readout was specifically designed for astronomical use with the HST requirement of low read noise a prime goal. These arrays use detector material which is similar to that used by Rockwell in previous arrays (e.g., HgCdTe produced on a sapphire substrate), but the NICMOS2 devices differ substantially from other 128x128 arrays produced by Rockwell in having a read noise of only 30 electrons when read out using appropriate correlated sampling. NICMOS2 has now been characterized in the laboratory, and it has been used on groundbased telescopes.
- Other Subject(s):
- Collection:
- NASA Technical Reports Server (NTRS) Collection.
- Note:
- Document ID: 19900012022.
Accession ID: 90N21338.
NASA, Ames Research Center, Proceedings of the Third Infrared Detector Technology Workship; p 321-330. - Terms of Use and Reproduction:
- No Copyright.
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