Other
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..605....5e&link_type=abstract
LOW TEMPERATURE DETECTORS: Ninth International Workshop on Low Temperature Detectors. AIP Conference Proceedings, Volume 605, p
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2
Thermoelectromagnetic And Other Devices, X- And Gamma-Ray Sources, Mirrors, Gratings, And Detectors
Scientific paper
In the past few years metallic magnetic calorimeters have been developed for particle detection. A magnetic calorimeter consists of an absorber, appropriate for the particles being detected, and a paramagnetic sensor located in a small magnetic field that serves as a thermometer. These two components are strongly coupled thermally together and weakly coupled to a thermal bath. The energy deposition of an incident particle produces a change in the absorber temperature and thus a change of the magnetization of the sensor. This change in magnetization can be measured with high resolution using a sensitive DC-SQUID. The performance of metallic magnetic calorimeters has improved rapidly and has now reached a level where various applications are conceivable. We discuss the principles of operation and the optimization criteria for magnetic calorimeters, and the design and performance of prototype detectors for both x-ray and gamma-ray detection. In addition, we comment on the fundamental limits of the energy resolution of such detectors. .
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