Superconducting X-ray detectors based on Nb absorbers and Nb/Al tunnel junctions


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Hamster, Arnout Willem (1999) Superconducting X-ray detectors based on Nb absorbers and Nb/Al tunnel junctions. thesis.

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Abstract:This thesis describes the research and development of STJs based on Nb/Al
technology for application as X-ray detectors in astrophysics conducted by the
Low Temperature division of the University of Twente in collaboration with the
Stichting Ruimteonderzoek Nederland (SRON). Three topics have been
investigated: the spatial inhomogeneous response of STJs which presently
limits their performance, the introduction of a thick X-ray absorbing Nb single
crystal into the detector design in order to enhance the photon detection
efficiency and finally the suitability of Double Relaxation Oscillation
Superconducting Quantum Interference Devices (DROSs) as readout amplifiers
for cryogenic detectors.
Item Type:Thesis
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Link to this item:http://purl.utwente.nl/publications/23462
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