%0 Journal Article
%T An ultra-fast superconducting Nb nanowire single-photon detector for soft x-rays
%A Inderbitzin, K.
%A Engel, A.
%A Schilling, A.
%A Il'in, K.
%A Siegel, M.
%D 2012
%V 101
%F Inderbitzin_etal2012
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=878), last updated on Tue, 30 Oct 2012 16:06:57 -0500
%X Although superconducting nanowire single-photon detectors (SNSPDs) are well studied regarding thedetection of infrared/optical photons and keV-molecules, no studies on continuous x-ray photoncounting by thick-film detectors have been reported so far. We fabricated a 100 nm thick niobiumx-ray SNSPD (an X-SNSPD) and studied its detection capability of photons with keV-energies incontinuous mode. The detector is capable to detect photons even at reduced bias currents of 0.4%,which is in sharp contrast to optical thin-film SNSPDs. No dark counts were recorded in extendedmeasurement periods. Strikingly, the signal amplitude distribution depends significantly on the photonenergy spectrum.VC
%K SSPD
%K SNSPD
%K x-ray
%K Nb