%0 Conference Proceedings %T Superconducting quantum detector for far infrared astronomy %A Semenov, A. %A Hübers, H-W %A Engel, A. %A Gol’tsman, G. %Y Wolf, J. %Y Farhoomand, J. %Y McCreight, C. R. %S Far-IR, Sub-mm & MM Detector Technology Workshop %S NASA CP %D 2002 %I NASA %F Semenov_etal2002 %O Volume: 211408 %O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1538), last updated on Fri, 21 May 2021 16:36:30 -0500 %X We present the concept of the superconducting quantum detector for astronomy. Response to a single absorbed photon appears due to successive formation of a normal spot and phase-slip-centres in a narrow strip carrying sub-critical supercurrent. The detector simultaneously has a moderate energy resolution and a variable cut-off wavelength depending on both the material used and operation conditions. We simulated performance of the background-limited direct detector having the 100-micrometer cut-off wavelength. Low dark count rate will allow to realise 10-21 W Hz-1/2 noise equivalent power at 4 K background radiation. The detection mechanism provides a moderate 1/20 energy resolution at 50-micrometer wavelength. %K SQD %U https://elib.dlr.de/18596/ %P 3-49