High-resolution tunnel junction extreme ultraviolet detectors limited by quasiparticle counting statistics

Stephan Friedrich; Johan B. Le Grand; Lawrence J. Filler; John Kipp; Matthias Frank; Simon E. Labov; Stephen P. Cramer; Andrew T. Barfknecht

doi:10.1109/77.783742

High-resolution tunnel junction extreme ultraviolet detectors limited by quasiparticle counting statistics

Stephan Friedrich, Johan B. Le Grand, Lawrence J. Filler, John Kipp, Matthias Frank, Simon E. Labov, Stephen P. Cramer, Andrew T. Barfknecht

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Superconducting tunnel junctions (STJs) can be used as high-resolution high-count rate photon detectors. They are based on the measurement of the excess quasiparticle tunneling current caused by the absorption of a photon in one of the junction electrodes. We have fabricated Nb-AI-AlOx-Al-Nb tunnel junction detectors with different sizes and characterized them in sychrotron experiments. We present a study of the detector performance in the energy band between 5 0 and 1000 eV. For photon energies below 70 eV, the intrinsic device resolution of the best STJ devices agrees with the theoretical limit set by the statistics of the charge generation and tunneling processes.

Original language	English (US)
Pages (from-to)	3330-3333
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 3
DOIs	https://doi.org/10.1109/77.783742
State	Published - Dec 1 1999
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/77.783742

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High-resolution tunnel junction extreme ultraviolet detectors limited by quasiparticle counting statistics. / Friedrich, Stephan; Le Grand, Johan B.; Filler, Lawrence J.; Kipp, John; Frank, Matthias; Labov, Simon E.; Cramer, Stephen P.; Barfknecht, Andrew T.

In: IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2 PART 3, 01.12.1999, p. 3330-3333.

Research output: Contribution to journal › Article › peer-review

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High-resolution tunnel junction extreme ultraviolet detectors limited by quasiparticle counting statistics

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