dc.contributor.author |
Karasik, Boris S. |
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dc.contributor.author |
Sergeev, Andrei V. |
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dc.date.accessioned |
2007-11-30T19:40:33Z |
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dc.date.available |
2007-11-30T19:40:33Z |
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dc.date.issued |
2004-10-03 |
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dc.identifier.citation |
IEEE Transactions on Applied Superconductivity Applied Superconductivity Conference, Jacksonville, Florida, October 3-8, 2004. |
en |
dc.identifier.clearanceno |
04-2926 |
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dc.identifier.uri |
http://hdl.handle.net/2014/40549 |
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dc.description.abstract |
We present a concept for the hot-electron transition-edge sensor capable of counting THz photons. The main need for such a sensor is a spectroscopy on future space telescopes where a background limited NEP ~ 10ˉ²° W/H¹´² is expected at around 1 THz. Under these conditions, the rate of photon arrival is very low and any currently imaginable detector with sufficient sensitivity will operate in the photon counting mode. The Hot-Electron Photon Counter based on a submicron-size Ti bridge has a very low heat capacity which provides a high enough energy resolution (~140 GHz) at 0.3 K. With the sensor time constant of a few microseconds, the dynamic range would be ~ 30 dB. The sensor couples to radiation via a planar antenna and is read by a SQUID amplifier or by a 1-bit RSFQ ADC. A compact array of the antenna-coupled counters can be fabricated on a silicon wafer without membranes. |
en |
dc.description.sponsorship |
NASA/JPL |
en |
dc.format.extent |
448963 bytes |
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dc.format.mimetype |
application/pdf |
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dc.language.iso |
en_US |
en |
dc.publisher |
Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. |
en |
dc.subject |
radiation detectors |
en |
dc.subject |
submillimeter wave detectors |
en |
dc.subject |
bolometers |
en |
dc.subject |
superconducting devices |
en |
dc.title |
THz hot-electron photon counter |
en |
dc.type |
Preprint |
en |