Position-Sensitive Particle Detection With Microchannel-Plate Electron Multipliers

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This chapter discusses that the development of microchannel plate (MCP) electron multipliers spawned a new generation of detectors for charged and neutral particles. These are position-sensitive or “imaging” devices that indicate the positions of particle impact on the detector surface. Initially developed as an image intensifier, the microchannel plate typically consist of a disk of lead glass, 10 to 100 mm in diameter, having a thickness between 0.5 and 2 mm, and is fabricated by multistep process. A bundle of glass tubes, containing solid cores, is drawn and fused, forming a single fiber. These fibers are stacked in a hexagonal assembly that is fused and drawn further. There are several configurations of MCP-based position-sensitive particle detectors (PSDs) that differ in specific means for the determination of the position information. In most of these, position resolutions of 50 μm are achieved and some of the detectors permit the measurement of particle arrival times with subnanosecond resolution. Some of the results discussed in the chapter are obtained under the support of grants from the National Science Foundation, Atmospheric Sciences Section, and NASA. © 1995 Academic Press, Inc.




Smith, K. (1995). Position-Sensitive Particle Detection With Microchannel-Plate Electron Multipliers. Methods in Experimental Physics, 29(PA), 253–272. https://doi.org/10.1016/S0076-695X(08)60659-6

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