Abstract
This work presents the first results of our development of normal-insulating-superconducting tunnel junctions used as energy dispersive detectors for low energy particles. The device described here is a Ag/Al 2O 3/Al tunnel junction of area 1.5 multiplied by 10 4 micrometer squared with thicknesses of 200 nm for the normal Ag strip and 100 nm for the superconducting Al film. Two different high-speed SQUID systems manufactured by quantum magnetics and HYPRES, respectively, were used for the readout of this device. At 80 mK bath temperature we obtained an energy resolution DeltaE FWHM equals 250 eV for 5.89 keV x rays absorbed directly in the normal metal. This energy resolution appears to be limited in large part by the observed strong position dependence of the device response.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Oswald H. Siegmund, John V. Vallerga |
| Pages | 286-291 |
| Number of pages | 6 |
| Volume | 2518 |
| State | Published - Dec 1 1995 |
| Externally published | Yes |
| Event | EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI - San Diego, CA, USA Duration: Jul 12 1995 → Jul 14 1995 |
Other
| Other | EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VI |
|---|---|
| City | San Diego, CA, USA |
| Period | 7/12/95 → 7/14/95 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
NIS tunnel junction as an x-ray photon sensor. / Azgui, Fatma; Mears, Carl A.; Labov, Simon E.; Frank, Matthias; Sadoulet, Bernard; Brunet, E.; Hiller, Lawrence J.; Lindeman, Mark A.; Netel, Harrie.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Oswald H. Siegmund; John V. Vallerga. Vol. 2518 1995. p. 286-291.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - NIS tunnel junction as an x-ray photon sensor
AU - Azgui, Fatma
AU - Mears, Carl A.
AU - Labov, Simon E.
AU - Frank, Matthias
AU - Sadoulet, Bernard
AU - Brunet, E.
AU - Hiller, Lawrence J.
AU - Lindeman, Mark A.
AU - Netel, Harrie
PY - 1995/12/1
Y1 - 1995/12/1
N2 - This work presents the first results of our development of normal-insulating-superconducting tunnel junctions used as energy dispersive detectors for low energy particles. The device described here is a Ag/Al 2O 3/Al tunnel junction of area 1.5 multiplied by 10 4 micrometer squared with thicknesses of 200 nm for the normal Ag strip and 100 nm for the superconducting Al film. Two different high-speed SQUID systems manufactured by quantum magnetics and HYPRES, respectively, were used for the readout of this device. At 80 mK bath temperature we obtained an energy resolution DeltaE FWHM equals 250 eV for 5.89 keV x rays absorbed directly in the normal metal. This energy resolution appears to be limited in large part by the observed strong position dependence of the device response.
AB - This work presents the first results of our development of normal-insulating-superconducting tunnel junctions used as energy dispersive detectors for low energy particles. The device described here is a Ag/Al 2O 3/Al tunnel junction of area 1.5 multiplied by 10 4 micrometer squared with thicknesses of 200 nm for the normal Ag strip and 100 nm for the superconducting Al film. Two different high-speed SQUID systems manufactured by quantum magnetics and HYPRES, respectively, were used for the readout of this device. At 80 mK bath temperature we obtained an energy resolution DeltaE FWHM equals 250 eV for 5.89 keV x rays absorbed directly in the normal metal. This energy resolution appears to be limited in large part by the observed strong position dependence of the device response.
UR - http://www.scopus.com/inward/record.url?scp=0029504661&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029504661&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0029504661
SN - 0819418773
SN - 9780819418777
VL - 2518
SP - 286
EP - 291
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Siegmund, Oswald H.
A2 - Vallerga, John V.
ER -