Computer Science – Performance
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh31b0708p&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SH31B-0708
Computer Science
Performance
7509 Corona, 7537 Solar And Stellar Variability, 7554 X Rays, Gamma Rays, And Neutrinos, 7594 Instruments And Techniques
Scientific paper
On 23 July 2001, the prototype Solar X-ray Imager (SXI) instrument was lofted into orbit aboard the NOAA GOES-12 spacecraft. Although many optical elements of the system are based upon previous spacecraft designs (eg., the nickel-coated mirror employs long-established Wolter-I grazing incidence technology), the detector is of a type not previously used for direct solar imaging. To gain the enhanced broadband (6-60 Angstrom) sensitivity most revealing of coronal structures pertinent to space weather applications, it utilizes a multi-channel plate image intensifier feeding a visible light CCD via a phosphor layer. The optical response of the combined system (prefilter, mirror, analysis filters, detector) thus differs in important ways from more familiar instruments, such as Yohkoh-SXT, EIT, and TRACE. Using an extensive set of imagery taken during SXI post-launch tests, we will highlight the SXI imaging performance (spectral response, photon statistics, spatial and temporal resolution, etc.), as compared with existing solar instruments.
Davis Mark J.
Hill Steven M.
Pizzo Victor J.
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