TY  - JOUR
AU  - Sclafani, M.
AU  - Marksteiner, M.
AU  - Keir, F. M. L.
AU  - Divochiy, A.
AU  - Korneev, A.
AU  - Semenov, A.
AU  - Gol'tsman, G.
AU  - Arndt, M.
PY  - 2012
DA  - 2012//
TI  - Sensitivity of a superconducting nanowire detector for single ions at low energy
T2  - Nanotechnol.
JO  - Nanotechnol.
SP  - 065501 (1 to 5)
VL  - 23
IS  - 6
KW  - NbN SSPD
KW  - SNSPD
KW  - superconducting single ion detector
KW  - SSID
KW  - SNSID
AB  - We report on the characterization of a superconducting nanowire detector for ions at low kinetic energies. We measure the absolute single-particle detection efficiency eta and trace its increase with energy up to eta = 100%. We discuss the influence of noble gas adsorbates on the cryogenic surface and analyze their relevance for the detection of slow massive particles. We apply a recent model for the hot-spot formation to the incidence of atomic ions at energies between 0.2 and 1 keV. We suggest how the differences observed for photons and atoms or molecules can be related to the surface condition of the detector and we propose that the restoration of proper surface conditions may open a new avenue for SSPD-based optical spectroscopy on molecules and nanoparticles.
SN  - 0957-4484
UR  - http://www.ncbi.nlm.nih.gov/pubmed/22248823
UR  - https://doi.org/10.1088/0957-4484/23/6/065501
DO  - 10.1088/0957-4484/23/6/065501
LA  - English
N1  - PMID:22248823
ID  - Sclafani_etal2012
ER  -