Improvement of the detection efficiency of channel plate electron multiplier for atom probe application
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Multi-electron–ion coincidence spectrometer with a high-efficiency microchannel plate detector
2022, Journal of Electron Spectroscopy and Related PhenomenaCitation Excerpt :The maximum detection efficiency of an MCP detector is usually given by the open area ratio of the front surface, and standard MCP detectors have open area ratios of no more than 60%. Attempts have been made to increase the detection efficiency by installing a repelling grid [20,21]. In this study, an MCP detector with a large open area ratio (nominally 90%) was newly installed in a magnetic bottle electron spectrometer in order to improve the coincidence efficiency in multi-electron−ion coincidence measurements.
Multi-fragmentation of C<inf>60</inf> induced by <sup>4</sup>He<sup>2+</sup> impact ( E < 60 keV/amu) and investigated by a multi-correlation technique
2003, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and AtomsCitation Excerpt :Due to extraction and post-acceleration, ions arrive at the multi-channel plates with an energy equal to 5q keV, where q is the fragment charge. Detection efficiency is increased by using a polarized grid in front of the MCP detector to prevent secondary electrons emitted by the first plate from escape [14]. In order to minimize dead time, the first ion triggers a multi-stop module (Fast Comptek, 5 ns/channel) while other charged fragments and/or delayed beam signal serve as stop(s).
Improvement of the mass resolution of the atom probe using a dual counter-electrode
2003, UltramicroscopyThe ion detection efficiency of microchannel plates (MCPs)
2002, International Journal of Mass SpectrometryNuclear recoil detection with microchannel plates
2001, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentCitation Excerpt :Therefore, the biased grid will increase the overall detection efficiency of the MCP detector [7–9].