A Comparison of the Image Properties of Soft X-ray Imagers

Details A Comparison of the Image Properties of Soft X-ray Imagers A Comparison of the Image Properties of Soft X-ray Imagers

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sp61a07p&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SP61A-07

Physics

7509 Corona, 7537 Solar And Stellar Variability, 7554 X Rays, Gamma Rays, And Neutrinos, 7594 Instruments And Techniques

Scientific paper

The imminent launch of the prototype NOAA Solar X-ray Imager (SXI) aboard GOES-12 ushers in a new era in which nearly continuous, high-cadence soft X-ray solar imagery will become available to the space weather and basic science communities. Because of substantial technical differences in the process by which images are formed (e.g., photographic film, CCDs, MCPs, mirror coatings) among past, present, and future X-ray telescopes, this is a good juncture to place the forthcoming GOES-12 SXI imagery in context with existing Skylab and Yohkoh/SXT observations, along with the anticipated image properties of the subsequent LMSAL-built SXIs. The comparison includes spatial resolution/PSF, relative wavelength response, absolute sensitivity, dynamic range, image cadence, filters, and temperature estimates based upon filter ratios. All these factors influence the physical interpretation of what is seen in any set of images. In particular, we consider how the cadence, continuity, and softer X-ray response of the MSFC-built prototype on GOES-12 and its LMSAL follow-ons should enhance observations of coronal activity related to geospace disturbances.

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