| NUCLEAR PHYSICS |
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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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| Cite this article: |
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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.
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| Keywords:
29.40.Cs
51.10.+y
52.25.Fi
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Received: 27 July 2009
Published: 30 October 2009
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| PACS: |
29.40.Cs
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(Gas-filled counters: ionization chambers, proportional, and avalanche counters)
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51.10.+y
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(Kinetic and transport theory of gases)
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52.25.Fi
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(Transport properties)
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