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New results on the absolute ion detection efficiencies of a microchannel plate (buy this article online)

J Oberheide et al 1997 Meas. Sci. Technol. 8 351-354

J Oberheide, P Wilhelms and M Zimmer
Institut für Atom- und Molekülphysik, Universität Hannover, Appelstraße 2, D-30167 Hannover, Germany

Abstract. Absolute single-particle detection efficiencies and pulse height distributions of a cascaded microchannel plate (MCP) detector are reported for the ions , , , and in the impact energy range 0 - 4.75 keV. The detection efficiencies have been obtained using the photoelectron - photoion coincidence (PEPICO) technique which allows the determination of detection efficiencies without knowledge of the absolute ionization rate. The mean gain is found to increase with increasing ion impact energy and decreasing ion mass. Depending on the ion mass, the absolute detection efficiencies saturate above 2.5 keV and reach about 63%.

Print publication: Issue 4 (April 1997)


Open Microchannel Plate Detector MCP-MA25/2

Open Microchannel Plate Detector MCP-MA25/2 - now in stock!
Microchannel Plate Detectors MCP-MA series are an open MCP detectors with one or more microchannel plates and a single metal anode. They are intended for time-resolved detection and make use of high-speed response properties of the MCPs. MCP-MA detectors are designed for photons and particles detection in vacuum chambers or in the space. MCP-MA detectors are used in a variety of applications including UV, VUV and EUV spectroscopy, atomic and molecular physics, TOF mass–spectrometry of clusters and biomolecules, surface studies and space research.
MCP-MA detectors supplied as a totally assembled unit that can be easily mounted on any support substrate or directly on a vacuum flange. They also can be supplied premounted on a standard ConFlat flanges. buy online - ask for research discount!


Microchannel Plates, Detectors and Imaging Systems
Examples of research applications:
Studies of the atomic clusters at the University of Virginia - Amber Post
Featured MCP customer: The Castleman Group at PSU
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