X-ray photon detection with multilayered Josephson junctions

C. Thomas; S. R. Maglic; S. N. Song; M. P. Ulmer; J. B. Ketterson

doi:10.1016/0168-9002(95)01040-8

X-ray photon detection with multilayered Josephson junctions

C. Thomas^*, S. R. Maglic, S. N. Song, M. P. Ulmer, J. B. Ketterson

^*Corresponding author for this work

Physics and Astronomy

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

3 Scopus citations

Abstract

Superconducting tunnel junctions can be configured as high resolution X-ray spectrometers however, because they are thin, STJs suffer from inherent photoabsorption inefficiency. A common approach to enhance quantum efficiency is to couple the junctions to superconducting absorbers and employ quasiparticle traps. An alternative approach is to use vertical stacks of tunnel junctions as detectors. These multilayered superconducting tunnel junctions (MSTJs) need not be thin and may have additional advantages including increased signal to noise ratio. We report on the fabrication of multilayered tunnel junctions and successful X-ray detection by an MSTJ.

Original language	English (US)
Pages (from-to)	38-40
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	370
Issue number	1
DOIs	https://doi.org/10.1016/0168-9002(95)01040-8
State	Published - Feb 11 1996

Funding

We would like to thank F. Scott Porter and DeborahV an Vechten at NRL for the use of their detectinge lectronics and their helpful expertise.W e also thank R. Monaco for the donation two layer and other junctions. research is supported by NASA Graduate Student Researchers Program Grant Number NGT 5 I30 1.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/0168-9002(95)01040-8

Cite this

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title = "X-ray photon detection with multilayered Josephson junctions",

abstract = "Superconducting tunnel junctions can be configured as high resolution X-ray spectrometers however, because they are thin, STJs suffer from inherent photoabsorption inefficiency. A common approach to enhance quantum efficiency is to couple the junctions to superconducting absorbers and employ quasiparticle traps. An alternative approach is to use vertical stacks of tunnel junctions as detectors. These multilayered superconducting tunnel junctions (MSTJs) need not be thin and may have additional advantages including increased signal to noise ratio. We report on the fabrication of multilayered tunnel junctions and successful X-ray detection by an MSTJ.",

author = "C. Thomas and Maglic, {S. R.} and Song, {S. N.} and Ulmer, {M. P.} and Ketterson, {J. B.}",

note = "Funding Information: We would like to thank F. Scott Porter and DeborahV an Vechten at NRL for the use of their detectinge lectronics and their helpful expertise.W e also thank R. Monaco for the donation two layer and other junctions. research is supported by NASA Graduate Student Researchers Program Grant Number NGT 5 I30 1.",

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doi = "10.1016/0168-9002(95)01040-8",

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AU - Thomas, C.

AU - Maglic, S. R.

AU - Song, S. N.

AU - Ulmer, M. P.

AU - Ketterson, J. B.

N1 - Funding Information: We would like to thank F. Scott Porter and DeborahV an Vechten at NRL for the use of their detectinge lectronics and their helpful expertise.W e also thank R. Monaco for the donation two layer and other junctions. research is supported by NASA Graduate Student Researchers Program Grant Number NGT 5 I30 1.

PY - 1996/2/11

Y1 - 1996/2/11

N2 - Superconducting tunnel junctions can be configured as high resolution X-ray spectrometers however, because they are thin, STJs suffer from inherent photoabsorption inefficiency. A common approach to enhance quantum efficiency is to couple the junctions to superconducting absorbers and employ quasiparticle traps. An alternative approach is to use vertical stacks of tunnel junctions as detectors. These multilayered superconducting tunnel junctions (MSTJs) need not be thin and may have additional advantages including increased signal to noise ratio. We report on the fabrication of multilayered tunnel junctions and successful X-ray detection by an MSTJ.

AB - Superconducting tunnel junctions can be configured as high resolution X-ray spectrometers however, because they are thin, STJs suffer from inherent photoabsorption inefficiency. A common approach to enhance quantum efficiency is to couple the junctions to superconducting absorbers and employ quasiparticle traps. An alternative approach is to use vertical stacks of tunnel junctions as detectors. These multilayered superconducting tunnel junctions (MSTJs) need not be thin and may have additional advantages including increased signal to noise ratio. We report on the fabrication of multilayered tunnel junctions and successful X-ray detection by an MSTJ.

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X-ray photon detection with multilayered Josephson junctions

Abstract

Funding

ASJC Scopus subject areas

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