Development of practical soft X-ray spectrometers
| Autor: | R. den Hartog, Guy Brammertz, D. J. Goldie, Nicola Rando, Peter Verhoeve, Anthony J. Peacock, Didier D. E. Martin |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Superconductivity
Physics Range (particle radiation) Spectrometer Physics::Instrumentation and Detectors business.industry Astrophysics::High Energy Astrophysical Phenomena Imaging spectrometer Condensed Matter Physics Electronic Optical and Magnetic Materials Nuclear magnetic resonance Optics Superconducting tunnel junction Quantum efficiency Electrical and Electronic Engineering business Quantum tunnelling Energy (signal processing) |
| Zdroj: | IEEE Transactions on Appiled Superconductivity. 11:828-831 |
| ISSN: | 1051-8223 |
| Popis: | Cryogenic soft X-ray imaging spectrometers are currently being developed for applications in the fields of astronomy and material sciences. In this paper we present experiments on optimized single devices, which show measured energy resolutions of 4.6 eV, 8.1 eV and 20.5 eV at 525 eV, 1.5 keV and 6 keV respectively. These energy resolutions combined with a quantum efficiency of more than 40% in the energy range from 0.5 to 2 keV together with a count rate capability of 15 kHz demonstrate the overall good performance of single Superconducting Tunnel junctions (STJs). Assembling these optimized single devices in a matrix read-out would provide the practical basis for a soft X-ray imaging spectrometer. |
| Databáze: | OpenAIRE |
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