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Transition Edge Sensors and the device selection process. (South Carolina Academy of Sciences Abstracts).

Transition Edge Sensors (TES) are devices that can detect electromagnetic radiation by sensing the change in temperature that occurs when photons are incident on a superconducting material. The superconducting material is maintained at its transition temperature range (the range of temperature at which the material is between superconducting and normal) so that any change in temperature will cause a significant change in the resistance of the material. This change in resistance is measured using a Superconducting quantum Interference Device (SQUID). It is desirable that the transition Temperature ([T.sub.c]) of the device be known before using it in experiments. For the purposes of our group, a device with a [T.sub.c] of about 120mk is desirable. The manufacturing process for these devices is reproducible; therefore devices chosen from the same position on different wafers manufactured by the same process will have the same [T.sub.c]. This project sought to define the relationship between position on the water and [T.sub.c] so that devices of a specific [T.sub.c] can be chosen directly. Funding for this work has been provided by NASA MU-SPIN NCC 5-534 and NASA OSS NAG 5-10145.
Kelvin Aaron, James E. Payne
Department of Physical Sciences
South Carolina State University
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Title Annotation:physics research
Author:Aaron, Kelvin; Payne, James E.
Publication:Bulletin of the South Carolina Academy of Science
Article Type:Brief Article
Date:Jan 1, 2003
Words:207
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