| Autor: |
R. Wallauer, T. Bauer, B. Ulrich, Juan Carlos Campuzano, Reinhard Dörner, Till Jahnke, Michael Sing, Deborah Schneider, Horst Schmidt-Böcking, Stefan Voss, G. Berner, Lothar Ph. H. Schmidt, Harald Olaf Jeschke, Roser Valentí, Lutz Foucar, A. Müller, Amit Kanigel, K. Kreidi, Achim Czasch, N. Neumann, J. Titze, Ralph Claessen, Markus Schöffler, T. Havermeier |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Review of Scientific Instruments |
| ISSN: |
1089-7623 |
| Popis: |
We present a new experimental setup to study electron-electron coincidences from superconducting surfaces. In our approach, electrons emitted from a surface are projected onto a time- and position-sensitive microchannel plate detector with delayline position readout. Electrons that are emitted within 2 π solid angle with respect to the surface are detected in coincidence. The detector used is a hexagonal delayline detector with enhanced multiple hit capabilities. It is read out with a Flash analog-to-digital converter. The three-dimensional momentum vector is obtained for each electron. The intrinsic dead time of the detector has been greatly reduced by implementing a new algorithm for pulse analysis. The sample holder has been matched to fit the spectrometer while being capable of cooling down the sample to 4.5 K during the measurement and heating it up to 420 K for the cleaning procedure. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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