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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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