Chin. Phys. Lett.  2009, Vol. 26 Issue (11): 112901    DOI: 10.1088/0256-307X/26/11/112901
NUCLEAR PHYSICS |
Measurement of Electron-Drift Velocity in Ar+CH4 Mixtures Using Double-Grid Method
ZHANG Jia-Guo, ZHANG Guo-Hui, CHEN Jin-Xiang
State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871
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ZHANG Jia-Guo, ZHANG Guo-Hui, CHEN Jin-Xiang 2009 Chin. Phys. Lett. 26 112901
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Abstract Based on analyzing the induced signals from the double-grids of an ionization chamber, the electron-drift time between the two grids is determined and the electron-drift velocity is derived. A waveform digitizer is employed to record pulses from the two grids of the ionization chamber. The electron-drift velocity is measured as a function of the reduced electric field E/p for eight different ratios of Ar+CH4 mixtures. By analyzing the experimental data of this study, self-consistency of experimental data is achieved, and formulae for calculating electron-drift velocity in any ratio of Ar+CH4 mixtures are obtained.
Keywords: 29.40.Cs      51.10.+y      52.25.Fi     
Received: 27 July 2009      Published: 30 October 2009
PACS:  29.40.Cs (Gas-filled counters: ionization chambers, proportional, and avalanche counters)  
  51.10.+y (Kinetic and transport theory of gases)  
  52.25.Fi (Transport properties)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/26/11/112901       OR      https://cpl.iphy.ac.cn/Y2009/V26/I11/112901
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ZHANG Jia-Guo
ZHANG Guo-Hui
CHEN Jin-Xiang
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