Simulation of Micromegas Detector by Garfield Program

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ZHANG Xiao-Dong, CHEN Xu-Tao, ZHANG Yi, YANG He-Run, XU Hu-Shan, DUAN Li-Min, LI Chun-Yan and LI Zu-Yu. Simulation of Micromegas Detector by Garfield Program[J]. Chinese Physics C, 2007, 31(11): 1045-1049.
ZHANG Xiao-Dong, CHEN Xu-Tao, ZHANG Yi, YANG He-Run, XU Hu-Shan, DUAN Li-Min, LI Chun-Yan and LI Zu-Yu. Simulation of Micromegas Detector by Garfield Program[J]. Chinese Physics C, 2007, 31(11): 1045-1049. shu
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Received: 2006-12-10
Revised: 2007-03-19
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Simulation of Micromegas Detector by Garfield Program

    Corresponding author: ZHANG Xiao-Dong,
  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Institute of Nuclear Physics, Lanzhou University, Lanzhou 730000, China3 Well Logging Instrument Factory, China Petroleum Logging Co., LTD, Xi'an 710061, China

Abstract: In this paper, a batch file which describes the detailed structure and the corresponding physical process of Micro-Mesh Gaseous Structure (Micromegas) detector, the macro commands and the control structures based on the Garfield program has been developed. And using the Garfield program controlled by this batch file, the detector's gain and spatial resolution have been investigated under different conditions. These results obtained by the simulation program not only exhibit the influences of the mesh and drift voltage, the mixture gas proportion, the distance between the mesh cathode and the printed circuit board readout anode, and the Lines Per Inch of the mesh cathode on the gain and spatial resolution of the detector, but also are very important to optimize the design, shorten the experimental period, and save cost during the detector development. Additionally, they also indicate that the Garfield program is a powerful tool for the Micromegas detector design and optimization.

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