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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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 ... continued below

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10E911

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Craig Kruschwitz, Ming Wu, Ken Moy, Greg Rochau October 31, 2008.

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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.

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10E911

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  • Journal Name: Review of Scientific Instruments; Journal Volume: 79; Journal Issue: 10; Conference: 17th Topical Conference: High-Temperature Plasma Diagnostics; Albuquerque, New Mexico; May 11-15, 2008

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  • Report No.: DOE/NV/25946--459
  • Grant Number: DE-AC52-06NA25946
  • DOI: 10.1063/1.2969283 | External Link
  • Office of Scientific & Technical Information Report Number: 942229
  • Archival Resource Key: ark:/67531/metadc893440

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 31, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 16, 2016, 12:46 p.m.

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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, article, October 31, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc893440/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.