Quasiparticle diffusion, edge losses, and back-tunneling in superconducting tunnel junctions under x-ray irradiation

1999 ◽  
Vol 86 (8) ◽  
pp. 4580-4587 ◽  
Author(s):  
R. Cristiano ◽  
E. Esposito ◽  
L. Frunzio ◽  
C. Nappi ◽  
G. Ammendola ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Superconducting Tunnel Junctions ◽  
X Ray ◽  
Quasiparticle Diffusion

Effects of Quasiparticle Diffusion in Nb-Based Superconducting Tunnel Junctions Under X-Rays Irradiation

1999 ◽  
Vol 13 (09n10) ◽  
pp. 1247-1252
Author(s):  
Emanuela Esposito ◽  
Luigi Frunzio ◽  
Loredana Parlato ◽  
Roberto Cristiano ◽  
Mikhall Lisitskii ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Signal Amplitude ◽  
Radiation Detectors ◽  
Superconducting Tunnel Junctions ◽  
X Rays ◽  
Theoretical Limit ◽  
X Ray ◽  
Operational Temperature ◽  
Amplitude Spectra ◽  
Quasiparticle Diffusion

A novel class of sensors is constituted by radiation detectors based on superconducting tunnel junctions, which could lead in the next future to an advanced instrumentation with an interesting fall out for applications. So far, this area is restricted to LTc superconductors. Among them, niobium has the highest critical temperature and is therefore less demanding in terms of operational temperature. The best performances achieved so far in pure Nb-based junction are far away from the expected theoretical limit. The reason of this discrepancy could be attributed to various problems. Quasiparticle diffusion and edge losses seem to be responsible for the broadening of the signal amplitude spectra so often observed and reported in literature. In this paper we report on efforts to investigate the response to X-Ray of Nb-based superconducting tunnel junctions in terms of a model which includes the quasiparticle diffusion and the edge losses. Our model takes into account the contribution from both the electrodes of the junction and well reproduces the experimental data.

scholarly journals X-ray spectroscopy of ion-surface interactions using superconducting tunnel junctions

2002 ◽  
Author(s):  
T. Niedermayr ◽  
S. Friedrich ◽  
M. F. Cunningham ◽  
M. Frank ◽  
J. P. Briand ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Surface Interactions ◽  
Superconducting Tunnel Junctions ◽  
X Ray

scholarly journals Soft x-ray (50-1800 eV) measurements of niobium superconducting tunnel junctions

1995 ◽  
Author(s):  
David H. Lumb ◽  
Axel van Dordrecht ◽  
Anthony J. Peacock ◽  
Nicola Rando ◽  
Peter Verhoeve ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Superconducting Tunnel Junctions ◽  
X Ray

Superconducting tunnel junctions on Nb- and Ta-single crystal substrates for X-ray spectrometry

1997 ◽  
Vol 7 (2) ◽  
pp. 3387-3390
Author(s):  
M.P. Bruijn ◽  
F.B. Kiewiet ◽  
M.L. van den Berg ◽  
O.J. Luiten ◽  
P.A.J. de Korte ◽  
...  
Keyword(s):  
Single Crystal ◽  
Tunnel Junctions ◽  
Superconducting Tunnel Junctions ◽  
X Ray

scholarly journals X‐ray detection by superconducting tunnel junctions via phonon propagation in the substrate

1996 ◽  
Vol 79 (9) ◽  
pp. 7362-7369 ◽  
Author(s):  
A. Poelaert ◽  
C. Erd ◽  
A. Peacock ◽  
N. Rando ◽  
P. Verhoeve ◽  
...  
Keyword(s):  
Tunnel Junctions ◽  
Superconducting Tunnel Junctions ◽  
X Ray

Fabrication of superconducting tunnel junctions for soft X-ray spectroscopy

2011 ◽  
Vol 40 (4) ◽  
pp. 297-300 ◽  
Author(s):  
M. Ukibe ◽  
S. Shiki ◽  
Y. Kitajima ◽  
M. Ohkubo
Keyword(s):  
Tunnel Junctions ◽  
Superconducting Tunnel Junctions ◽  
X Ray

Fabrication of array detectors with 100 superconducting tunnel junctions and Ta x-ray absorbers

2007 ◽  
Vol 36 (4) ◽  
pp. 260-263 ◽  
Author(s):  
M. Ukibe ◽  
A. Kushino ◽  
Y. Chen ◽  
M. Ohkubo
Keyword(s):  
Tunnel Junctions ◽  
Superconducting Tunnel Junctions ◽  
X Ray ◽  
Array Detectors
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