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Electrification of mineral particles by electron beam irradiation |
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| Institution: | 1. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China; Mining Engineering School, Taiyuan University of Technology, Taiyuan 030024, China;2. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083;3. Tianjin Institute of Technical Physics, Tianjin 300192, China |
| Abstract: | A novel way for electrification of mineral particles by electron beam irradiation was proposed. The effect of irradiation dose on charge/mass ratio was investigated experimentally. The charge/mass ratio of electrified mineral powders after irradiation was measured by aninstrument based on the principle of electrostatic induction. The experimental results showed that the charge/mass ratio is largely dependent on radiation dose and electric physical properties of minerals. Themechanism of electrification by electron beam irradiation is discussed. It is suggested that the essential of electrification by electron beam irradiation is a process of retardation and charge deposition of incident electrons in materials. |
| Keywords: | electrification electron beam irradiation powder mechanism |
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