Broad Band X-Ray Astronomical Spectroscopy
1984; Institute of Electrical and Electronics Engineers; Volume: 31; Issue: 1 Linguagem: Inglês
10.1109/tns.1984.4333367
ISSN1558-1578
AutoresP. J. Serlemitsos, Robert Petre, Cornelia Gläßer, F. Birsa,
Tópico(s)Advanced X-ray Imaging Techniques
ResumoThe Broad Band X-Ray Telescope (BBXRT) experiment has been designed for high sensitivity, moderate resolution spectrophotorietry of cosmic sources in the range 0.5 to 12 keV. Principal elements are two co-aligned imaging telescopes with cooled Si(Li) detectors at each focus. The mirror design uses an approximate geometry of tightly nested, conical, foil reflectors that allow a large filling factor (high throughput) at small grazing angles (high energy response). Each detector consists of a cluster of 5 elements defined with grooves on a single crystal. This arrangement affords some spatial resolution as well as a means of substantial background reduction. Shuttle borne measurements will typically be of 2000 s duration for sources with a flux of 10-12 ergs/cm2-s.
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