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MS: Fachverband Massenspektrometrie

MS 3: Poster

MS 3.12: Poster

Monday, March 14, 2011, 16:00–18:00, P1

A Sub-nanosecond Microchannel-Plate Detector Development — •Samuel Ayet^1,2, Timo Dickel^1,2, Marcel Diwisch¹, Hans Geissel^1,2, Christian Jesch¹, Natalia Kuzminchuck^1,2, Wolfgang Plaß^1,2, Christoph Scheidenberger^1,2, and Baohua Sun¹ — ¹Justus-Liebig-Universität, Gießen — ²GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt

The timing performance, rise time, fall time and pulse width of microchannel-plate detectors (MCP) are often the main limitations of many physics experiments. For example in mass spectrometry the mass resolution of time-of-flight mass spectrometers is often influenced by the timing characteristics of the MCP detector.

A new MCP detector for Isochronous Mass Spectrometry in storage rings has been designed based on microwave simulations. The rise time, fall time and the pulse width of the detector have been optimized and measured. Compared to a previous design, improvements by up to a factor of two have been achieved.