Monte Carlo simulations of microchannel plate detectors I: steady-state voltage bias results

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X-ray detectors based on straight-channel microchannel plates (MCPs) are a powerful diagnostic tool for two-dimensional, time-resolved imaging and timeresolved x-ray spectroscopy in the fields of laser-driven inertial confinement fusion and fast z-pinch experiments. Understanding the behavior of microchannel plates as used in such detectors is critical to understanding the data obtained. The subject of this paper is a Monte Carlo computer code we have developed to simulate the electron cascade in a microchannel plate under a static applied voltage. Also included in the simulation is elastic reflection of low-energy electrons from the channel wall, which is important at lower voltages. ... continued below

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Ming Wu, Craig Kruschwitz, Dane Morgan, Jiaming Morgan July 1, 2008.

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X-ray detectors based on straight-channel microchannel plates (MCPs) are a powerful diagnostic tool for two-dimensional, time-resolved imaging and timeresolved x-ray spectroscopy in the fields of laser-driven inertial confinement fusion and fast z-pinch experiments. Understanding the behavior of microchannel plates as used in such detectors is critical to understanding the data obtained. The subject of this paper is a Monte Carlo computer code we have developed to simulate the electron cascade in a microchannel plate under a static applied voltage. Also included in the simulation is elastic reflection of low-energy electrons from the channel wall, which is important at lower voltages. When model results were compared to measured microchannel plate sensitivities, good agreement was found. Spatial resolution simulations of MCP-based detectors were also presented and found to agree with experimental measurements.

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  • Journal Name: Review of Scientific Instruments; Journal Volume: 79; Journal Issue: 7

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  • Report No.: DOE/NV/25946--400
  • Grant Number: DE-AC52-06NA25946
  • Office of Scientific & Technical Information Report Number: 935745
  • Archival Resource Key: ark:/67531/metadc893923

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  • July 1, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 8:01 p.m.

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Ming Wu, Craig Kruschwitz, Dane Morgan, Jiaming Morgan. Monte Carlo simulations of microchannel plate detectors I: steady-state voltage bias results, article, July 1, 2008; (digital.library.unt.edu/ark:/67531/metadc893923/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.