Study on the TU gas for the GEM-TPC detector

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QI Hui-Rong, LI Yu-Lan, LI Jin, GAO Yuan-Ning and LI Yuan-Jing. Study on the TU gas for the GEM-TPC detector[J]. Chinese Physics C, 2009, 33(4): 289-291. doi: 10.1088/1674-1137/33/4/010
QI Hui-Rong, LI Yu-Lan, LI Jin, GAO Yuan-Ning and LI Yuan-Jing. Study on the TU gas for the GEM-TPC detector[J]. Chinese Physics C, 2009, 33(4): 289-291.  doi: 10.1088/1674-1137/33/4/010 shu
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Received: 2008-07-07
Revised: 2008-08-22
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Study on the TU gas for the GEM-TPC detector

    Corresponding author: QI Hui-Rong,

Abstract: 

In this paper several different working gas mixtures for GEM-TPC were evaluated based on a Garfield simulation. Among them, Ar: CH4: CF4=90: 7: 3 (named herein TU gas) was selected for a detailed study because of its better performance. Some performances of drift velocity, transverse diffusion, spatial resolution and the effective number of electrons in various electric fields were obtained. The performance of a GEM-TPC prototype working in the TU gas was studied and compared with that in Ar: CH4=90: 10 (P10 gas).

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