Mathematics – Logic
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..211..150k&link_type=abstract
IN: High-energy astrophysics in the 21st century; Proceedings of the Workshop, Taos, NM, Dec. 11-14, 1989 (A91-47977 20-90). New
Mathematics
Logic
Astronomical Spectroscopy, X Ray Spectroscopy, Astrometry, Cryogenics, Instruments, Superconductors, Technological Forecasting
Scientific paper
Several technologies being developed for high resolution X-ray spectroscopy are compared to determine the most suitable applications for each. Nondispersive cryogenic technology is considered by means of devices such as microcalorimeters and superconducting tunnel-junction detectors, and dispersive technologies are represented by crystal diffractors, transmission gratings and reflection gratings. Calorimeters and superconducting tunnel-junction conductors are found to be suitable for high energies while reflection gratings are more effective at lower energies. In general, however, the selected technology depends primarily on the particular implementation. Parameters such as launch capability, constraints, and scientific drivers are the guiding forces for selecting a particular device.
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