Long wavelength infrared camera (LWIRC) [electronic resource] : a 10 micron camera for the Keck Telescope.
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| Online Access: |
Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1998.
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| Subjects: |
| Abstract: | The Long Wavelength Infrared Camera (LWIRC) is a facility instrument for the Keck Observatory designed to operate at the f/25 forward Cassegrain focus of the Keck I telescope. The camera operates over the wavelength band 7-13 {micro}m using ZnSe transmissive optics. A set of filters, a circular variable filter (CVF), and a mid-infrared polarizer are available, as are three plate scales: 0.05̀̀, 0.10̀̀, 0.21̀̀ per pixel. The camera focal plane array and optics are cooled using liquid helium. The system has been refurbished with a 128 x 128 pixel Si:As detector array. The electronics readout system used to clock the array is compatible with both the hardware and software of the other Keck infrared instruments NIRC and LWS. A new pre-amplifier/A-D converter has been designed and constructed which decreases greatly the system susceptibility to noise. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 05/01/1998. "UCRL-JC--130643" "CONF-980349--" "DE98056041" "YN0100000" SPIE international symposium on astronomical telescopes and instrumentation, Kona, HI (United States), 20-28 Mar 1998. Arens, J.F.; Jernigan, J.G.; Wishnow, E.H.; Danchi, W.C.; Tuthill, P.; Wurtz, R. |
| Physical Description: | 11 p. |