Investigation of epitaxial niobium based superconducting tunnel junction detectors

S. Lemke; F. Hebrank; F. Fominaya; R. Gross; R. P. Huebener; N. Rando; A. van Dordrecht; P. Huebner; P. Videler; A. Peacock

doi:10.1016/0921-4526(94)91331-5

Investigation of epitaxial niobium based superconducting tunnel junction detectors

S. Lemke
, F. Hebrank
, F. Fominaya
, R. Gross
, R. P. Huebener
, N. Rando
, A. van Dordrecht
, P. Huebner
, P. Videler
, A. Peacock

University of Tübingen
ESTEC - European Space Research and Technology Centre

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

7 Scopus citations

Abstract

Superconducting Nb/AlAlO_x/Nb tunnel junctions (STJs) with epitaxial niobium base electrode are investigated as weak x-ray detectors. The recorded x-ray spectra show a two peak structure that is attributed to the absorption of 6 keV x-rays in the two junction electrodes. Low Temperature Scanning Electron Microscopy (LTSEM) proves, that the high charge output peak of the x-ray spectra is associated with x-rays absorbed in the epitaxial niobium film. The significantly reduced charge output for events in the polycrystalline niobium electrode is found to be bias voltage dependent.

Original language	English
Pages (from-to)	1663-1664
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	194-196
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91331-5
State	Published - 2 Feb 1994
Externally published	Yes

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title = "Investigation of epitaxial niobium based superconducting tunnel junction detectors",

abstract = "Superconducting Nb/AlAlOx/Nb tunnel junctions (STJs) with epitaxial niobium base electrode are investigated as weak x-ray detectors. The recorded x-ray spectra show a two peak structure that is attributed to the absorption of 6 keV x-rays in the two junction electrodes. Low Temperature Scanning Electron Microscopy (LTSEM) proves, that the high charge output peak of the x-ray spectra is associated with x-rays absorbed in the epitaxial niobium film. The significantly reduced charge output for events in the polycrystalline niobium electrode is found to be bias voltage dependent.",

author = "S. Lemke and F. Hebrank and F. Fominaya and R. Gross and Huebener, \{R. P.\} and N. Rando and \{van Dordrecht\}, A. and P. Huebner and P. Videler and A. Peacock",

year = "1994",

month = feb,

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doi = "10.1016/0921-4526(94)91331-5",

language = "English",

volume = "194-196",

pages = "1663--1664",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Investigation of epitaxial niobium based superconducting tunnel junction detectors

AU - Lemke, S.

AU - Hebrank, F.

AU - Fominaya, F.

AU - Gross, R.

AU - Huebener, R. P.

AU - Rando, N.

AU - van Dordrecht, A.

AU - Huebner, P.

AU - Videler, P.

AU - Peacock, A.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - Superconducting Nb/AlAlOx/Nb tunnel junctions (STJs) with epitaxial niobium base electrode are investigated as weak x-ray detectors. The recorded x-ray spectra show a two peak structure that is attributed to the absorption of 6 keV x-rays in the two junction electrodes. Low Temperature Scanning Electron Microscopy (LTSEM) proves, that the high charge output peak of the x-ray spectra is associated with x-rays absorbed in the epitaxial niobium film. The significantly reduced charge output for events in the polycrystalline niobium electrode is found to be bias voltage dependent.

AB - Superconducting Nb/AlAlOx/Nb tunnel junctions (STJs) with epitaxial niobium base electrode are investigated as weak x-ray detectors. The recorded x-ray spectra show a two peak structure that is attributed to the absorption of 6 keV x-rays in the two junction electrodes. Low Temperature Scanning Electron Microscopy (LTSEM) proves, that the high charge output peak of the x-ray spectra is associated with x-rays absorbed in the epitaxial niobium film. The significantly reduced charge output for events in the polycrystalline niobium electrode is found to be bias voltage dependent.

UR - https://www.scopus.com/pages/publications/11744266428

U2 - 10.1016/0921-4526(94)91331-5

DO - 10.1016/0921-4526(94)91331-5

M3 - Article

AN - SCOPUS:11744266428

SN - 0921-4526

VL - 194-196

SP - 1663

EP - 1664

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART 2

ER -

Investigation of epitaxial niobium based superconducting tunnel junction detectors

Abstract

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