Resistive-wall Instability Experiment in Space-charge Dominated Electron Beams
نویسندگان
چکیده
The resistive-wall instability of charged particle beams has been experimentally studied in space-charge dominated electron beams. The beam energy is in the range of 3 to 8.5 keV, the beam current is between 25 mA and 62 mA. In the experiment, electron beams produced from a thermionic cathode are passed through a 0.96 m long glass tube coated with a resistive material, and localized space-charge waves are launched in the beams. The ®rst preliminary experiment clearly shows the growth of slow spacecharge waves and the decay of fast space-charge waves. More systematic measurements and analysis of the growth(decay) rate are in progress.
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