Simulation study of the parallax effectof gaseous detectors

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WANG Xiao-Hu, WU Jun-Long and LI Jiang-Bo. Simulation study of the parallax effectof gaseous detectors[J]. Chinese Physics C, 2012, 36(11): 1106-1110. doi: 10.1088/1674-1137/36/11/012
WANG Xiao-Hu, WU Jun-Long and LI Jiang-Bo. Simulation study of the parallax effectof gaseous detectors[J]. Chinese Physics C, 2012, 36(11): 1106-1110.  doi: 10.1088/1674-1137/36/11/012 shu
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Received: 2012-02-16
Revised: 2012-03-23
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Simulation study of the parallax effectof gaseous detectors

Abstract: A simulation study of the parallax effect of gaseous detectors using the Garfield program is reported. A method that mainly uses non-uniform cathode potentials to reduce the parallax error of planar type gas detectors is described. By applying it to MWPC and Micro-pattern gas detectors, the method reduces the parallax broadening with very good results. For a 13° incidence track, the width (FWHM) of the parallax broadening is reduced to less than 20% of the normal one after using the special cathode potentials.

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