Monte Carlo Simulations of High-speed, Time-gated MCP-based X-ray Detectors: Saturation Effects in DC and Pulsed Modes and Detector Dynamic Range

doi:10.1063/1.2969283

Title: Monte Carlo Simulations of High-speed, Time-gated MCP-based X-ray Detectors: Saturation Effects in DC and Pulsed Modes and Detector Dynamic Range

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Abstract

We present here results of continued efforts to understand the performance of microchannel plate (MCP)–based, high-speed, gated, x-ray detectors. This work involves the continued improvement of a Monte Carlo simulation code to describe MCP performance coupled with experimental efforts to better characterize such detectors. Our goal is a quantitative description of MCP saturation behavior in both static and pulsed modes. We have developed a new model of charge buildup on the walls of the MCP channels and measured its effect on MCP gain. The results are compared to experimental data obtained with a short-pulse, high-intensity ultraviolet laser; these results clearly demonstrate MCP saturation behavior in both DC and pulsed modes. The simulations compare favorably to the experimental results. The dynamic range of the detectors in pulsed operation is of particular interest when fielding an MCP–based camera. By adjusting the laser flux we study the linear range of the camera. These results, too, are compared to our simulations.

Authors:: Craig Kruschwitz, Ming Wu, Ken Moy, Greg Rochau

Publication Date:: Fri Oct 31 00:00:00 EDT 2008

Research Org.:: National Security Technologies, LLC (NSTec), Mercury, NV (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NA)

OSTI Identifier:: 942229

Report Number(s):: DOE/NV/25946-459
TRN: US0900706

DOE Contract Number:: DE-AC52-06NA25946

Resource Type:: Conference

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 79; Journal Issue: 10; Conference: 17th Topical Conference: High-Temperature Plasma Diagnostics; Albuquerque, New Mexico; May 11-15, 2008

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BUILDUP; LASERS; PERFORMANCE; PLASMA DIAGNOSTICS; PLATES; SATURATION; SIMULATION; microchannel plates, Monte Carlo methods, X-ray apparatus, X-ray detection

Citation Formats


                    Craig Kruschwitz, Ming Wu, Ken Moy, Greg Rochau. Monte Carlo Simulations of High-speed, Time-gated MCP-based X-ray Detectors: Saturation Effects in DC and Pulsed Modes and Detector Dynamic Range.  United States: N. p., 2008. 
        Web.  doi:10.1063/1.2969283.

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                    Craig Kruschwitz, Ming Wu, Ken Moy, Greg Rochau. Monte Carlo Simulations of High-speed, Time-gated MCP-based X-ray Detectors: Saturation Effects in DC and Pulsed Modes and Detector Dynamic Range.  United States.  https://doi.org/10.1063/1.2969283

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                    Craig Kruschwitz, Ming Wu, Ken Moy, Greg Rochau. 2008.  
        "Monte Carlo Simulations of High-speed, Time-gated MCP-based X-ray Detectors: Saturation Effects in DC and Pulsed Modes and Detector Dynamic Range".  United States.  https://doi.org/10.1063/1.2969283.  https://www.osti.gov/servlets/purl/942229.

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@article{osti_942229,

  title        = {Monte Carlo Simulations of High-speed, Time-gated MCP-based X-ray Detectors: Saturation Effects in DC and Pulsed Modes and Detector Dynamic Range},

  author       = {Craig Kruschwitz, Ming Wu, Ken Moy, Greg Rochau},

  abstractNote = {We present here results of continued efforts to understand the performance of microchannel plate (MCP)–based, high-speed, gated, x-ray detectors. This work involves the continued improvement of a Monte Carlo simulation code to describe MCP performance coupled with experimental efforts to better characterize such detectors. Our goal is a quantitative description of MCP saturation behavior in both static and pulsed modes. We have developed a new model of charge buildup on the walls of the MCP channels and measured its effect on MCP gain. The results are compared to experimental data obtained with a short-pulse, high-intensity ultraviolet laser; these results clearly demonstrate MCP saturation behavior in both DC and pulsed modes. The simulations compare favorably to the experimental results. The dynamic range of the detectors in pulsed operation is of particular interest when fielding an MCP–based camera. By adjusting the laser flux we study the linear range of the camera. These results, too, are compared to our simulations.},

  doi          = {10.1063/1.2969283},

  url          = {https://www.osti.gov/biblio/942229},
  journal      = {Review of Scientific Instruments},
number       = 10,

  volume       = 79,

  place        = {United States},

  year         = {Fri Oct 31 00:00:00 EDT 2008},

  month        = {Fri Oct 31 00:00:00 EDT 2008}

}

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