Computer Science – Performance
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spd....34.2405d&link_type=abstract
American Astronomical Society, SPD meeting #34, #24.05; Bulletin of the American Astronomical Society, Vol. 35, p.853
Computer Science
Performance
Scientific paper
NEXUS is the result of a breakthrough optical design that incorporates new technologies to achieve high optical throughput at high spatial (1 arcsec) and spectral (1-2 km s-1) resolution over a wide field of view in an optimal extreme-ultraviolet spectral band. This achievement was made possible primarily by two technical developments. First, a coating of boron-carbide deposited onto a layer of iridium provided a greatly enhanced reflectivity at EUV wavelengths that would enable NEXUS to observe the Sun over a wide temperature range at high cadence. The reflectivity of these coatings have been measured and demonstrated in the laboratory.
The second key development was the use of a variable-line-spaced toroidal grating spectrometer. The spectrometer design allowed the Sun to be imaged at high spatial and spectral resolution along a 1 solar radius-long slit and over a wavelength range from 450 to 800 Å, nearly an entire spectral order. Because the spectrograph provided a magnification of about a factor of 6, only 2 optical elements are required to achieved the desired imaging performance. Throughput was enhanced by the use of only 2 reflections. The could all be accomodated within a total instrument length of 1.5m.
We would like to acknowledge support from ONR
No associations
LandOfFree
Normal-incidence EXtreme-Ultraviolet imaging Spectrometer - NEXUS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Normal-incidence EXtreme-Ultraviolet imaging Spectrometer - NEXUS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Normal-incidence EXtreme-Ultraviolet imaging Spectrometer - NEXUS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-988892