Soft-electron background in x-ray telescopes using Wolter I grazing-incidence optics in near-Earth orbits.

Details Soft-electron background in x-ray telescopes using Wolter I grazing-incidence optics in near-Earth orbits. Soft-electron background in x-ray telescopes using Wolter I grazing-incidence optics in near-Earth orbits.

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990opten..29.1291s&link_type=abstract

Opt. Eng., Vol. 29, No. 10, p. 1291 - 1295

Physics

Optics

4

X-Ray Telescopes

Scientific paper

The background in X-ray telescopes in near-Earth orbits from low-energy electrons (<100 keV) has long been a source of concern. Recent data on low-energy electron populations and improvements in the modeling of the propagation of low-energy electrons through Wolter I grazing-incidence optical systems now allow better quantitative estimates of the electron throughput of such systems. The modeling that has recently been done with respect to the U.K. soft X-ray telescope (Wide-Field Camera) on ROSAT is described. The results from the modeling are then applied to several other missions using grazing-incidence optics, and the implications are discussed.

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