Low-temperature detectors for X-rays

Details Low-temperature detectors for X-rays Low-temperature detectors for X-rays

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..211..164f&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

Physics

Astronomical Spectroscopy, Radiation Detectors, X Ray Spectroscopy, High Temperature Superconductors, Low Temperature Physics, Spectrometers

Scientific paper

The use of low-temperature conditions for the design and operation X-ray detectors is evaluated and their performance is compared with that of semiconductor devices. Nondispersive X-ray spectrometers can be manufactured at low temperatures, facilitated by the low heat capacity of materials at such temperatures. The use of a single high-efficiency nondispersive detecting element is discussed to examine the theoretical energy resolution. Low temperature operation is found to facilitate noise reduction, lower heat capacity, and introduce superconductor properties in the X-ray detection process; energy resolution ranging from 1 to 10 eV is reported to be possible. The effect of temperature on X-ray detection is considered in terms of three devices including an X-ray bolometer, tunneling-junction devices, and granular superconductors.

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