Gain saturation model of microchannel plate devices: Recent advances

Leonardo Giudicotti, Michele Bassan, Roberto Pasqualotto, Andrea Sardella

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

A previous model of microchannel plate (MCP) devices operating in conditions of gain saturation has been extended to include charge diffusion along the microchannel during the gain recovery process. To this purpose the set of independent recharging circuits previously associated to each MCP dynode has been replaced by a distributed parameter electrical network that represents the entire microchannel consistently with the structure of the microchannel wall as described in the literature. The model obtained in this way, unlike the previous one, takes into account the interaction between dynodes during the gain recovery and is also consistent with the operation of MCP devices in conditions of very fast gating. As for the previous model the gain and voltage along the channel are described by a pair of coupled, nonlinear differential equations whose numerical solutions are computed in conditions of a steady-state input current. Simplified analytical solutions for short pulse operations are also derived and discussed.
Original languageEnglish
DOIs
Publication statusPublished - 1997
Externally publishedYes
EventUltrahigh- and High-Speed Photography and Image-based Motion Measurement - , United States
Duration: 1 Jan 1997 → …

Conference

ConferenceUltrahigh- and High-Speed Photography and Image-based Motion Measurement
CountryUnited States
Period1/1/97 → …

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Giudicotti, L., Bassan, M., Pasqualotto, R., & Sardella, A. (1997). Gain saturation model of microchannel plate devices: Recent advances. Paper presented at Ultrahigh- and High-Speed Photography and Image-based Motion Measurement, United States. https://doi.org/10.1117/12.294539