Superconducting tunnel junctions as photon- counting imaging spectrometers from the optical to the x-ray band

2002 ◽  
Vol 41 (6) ◽  
pp. 1170 ◽  
Author(s):  
Peter Verhoeve
Keyword(s):  
Tunnel Junctions ◽  
Photon Counting ◽  
Superconducting Tunnel Junctions ◽  
X Ray

Tantalum superconducting tunnel junctions for photon counting detectors

2002 ◽  
Vol 12 (3) ◽  
pp. 145-148
Author(s):  
C. Jorel ◽  
P. Feautrier ◽  
J.-C. Villégier ◽  
A. Benoit
Keyword(s):  
Tunnel Junctions ◽  
Photon Counting ◽  
Superconducting Tunnel Junctions ◽  
Photon Counting Detectors

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
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