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University of Southern California


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Database: Current Contents(tm) from ISI
Copyright 1992, 1995 Institute for Scientific Information, all rights reserved.

    Author: OGAWA-H-S; MCMULLIN-D-R; JUDGE-D-L; KORDE-R

    Title: NORMAL INCIDENCE SPECTROPHOTOMETER WITH HIGH-DENSITY TRANSMISSION GRATING TECHNOLOGY AND HIGH-EFFICIENCY SILICON PHOTODIODES FOR ABSOLUTE SOLAR EXTREME-ULTRAVIOLET IRRADIANCE MEASUREMENTS

    Source: OPTICAL ENGINEERING, vol. 32, issue 12, (DEC, 1993) : pp. 3121-3125.

    Abstract: New developments in transmission grating and photodiode technology now make it possible to realize spectrometers in the extreme ultraviolet (EUV) spectral region (lambda<1000 angstrom), which are expected to be virtually constant in their diffraction and detector properties. Time-dependent effects associated with reflection gratings are eliminated through the use of free-standing transmission gratings. These gratings together with recently developed and highly stable EUV photodiodes have been utilized to construct a highly stable normal incidence spectrophotometer to monitor the variability and absolute intensity of the solar 304-angstrom line. Owing to its low weight and compactness, such a spectrometer will be a valuable tool for providing absolute solar irradiance throughout the EUV. This novel instrument will also be useful for cross-calibrating other EUV flight instruments and will be flown on a series of Hitchhiker shuttle flights and on SOHO. A preliminary version of this instrument has been fabricated and characterized, and the results are described.

Authors Abstract: N
English Abstract: Y
Language: eng
Pub. Type: ARTICLE
References: 6
ISSN: 0091-3286
Subject Cat: SY: OPTICS. ISI Order #: ML621 (For ordering reprints from ISI)
 
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