Determination of the detection efficiency of a channelplate electron multiplier
- 1 February 1986
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 57 (2) , 236-239
- https://doi.org/10.1063/1.1138976
Abstract
Making use of a technique of layer-by-layer field evaporation developed in the time-of-flight atom probe, the detection efficiency of a microchannelplate supplied by Galileo Electro Optics is determined. The detection efficiency for single ion impact is 57±8%, close to the fraction of the active channel area of the surface. It increases slightly, but no more than a few percent, even the front surface is positively biased.Keywords
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