Three Dimension Distribution of Electric Field in GEM Gas Detectors

ZHOU Yi; LI Cheng; AN Shao-Hui; XU Zi-Zong

Chinese Physics C> 2004, Vol. 28> Issue(3) : 299-303

Three Dimension Distribution of Electric Field in GEM Gas Detectors

Department of Modern Physics,University of Science and Technology of China,Hefei 230027,China

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Abstract：
The 3D distribution of electric field in GEM (Gas Electron Multiplier) electrode is calculated based on the finite element method. The transmissivity of electric field lines in four types of GEM are obtained, these are 33.12%,34 85%,40.70%, and 16.70% for double-conical, cylindrical, single-conical and inverse-conical electrodes respectively. The three dimensional calculation of electric field in GEM agrees with the experimental data better than the two dimensional calculation.

References

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ZHOU Yi, LI Cheng, AN Shao-Hui and XU Zi-Zong. Three Dimension Distribution of Electric Field in GEM Gas Detectors[J]. Chinese Physics C, 2004, 28(3): 299-303.

ZHOU Yi, LI Cheng, AN Shao-Hui and XU Zi-Zong. Three Dimension Distribution of Electric Field in GEM Gas Detectors[J]. Chinese Physics C, 2004, 28(3): 299-303. shu

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Received: 2003-06-25
Revised: 1900-01-01

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