Astrophysics (Index)About

transition edge sensor

(sensor using superconductivity's strong temperature sensitivity)

A transition edge sensor (TES) is an instrument that uses a superconductor's extreme temperature sensitivity (at the point of change from zero resistance to "normal" resistance) to sense electromagnetic radiation (EMR). A TES bolometer (i.e., transition edge sensor bolometer) is a bolometer which operates by using the heat induced by the EMR to trigger such a resistance change.

TES bolometers are of interest in astronomy for their high sensitivity. Telescopes/instruments using them include SOFIA, the Atacama Cosmology Telescope (ACT), the South Pole Telescope (SPT), the Atacama Submillimeter Telescope Experiment (ASTE), and SCUBA-2.

(instrument type)
Further reading:

Referenced by pages:
Atacama Cosmology Telescope (ACT)
Atacama Submillimeter Telescope Experiment (ASTE)