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- W2185941398 abstract "Recently ion sources providing high current beams with low emittance are required for accelerators to develop fusion materials (1). A high current beam diverges easily because of its strong space charge effects at the beam extraction area. We have examined utilizing a simulation code IGUN (2, 3, 4) in order to obtain the best parameters for a high current deuteron beam having a low emittance. The arrangement of the extraction electrodes designed for the simulation is an accel-decel extraction system constituted from four electrodes: a plasma electrode, a medium electrode, an electron suppresser electrode and a ground electrode. The applied voltages to the plasma electrode and the ground electrode were fixed for 100kV and 0V, respectively. The applied voltages to the other electrodes were changed. The range of the applied voltage to the medium electrode was between 30kV and 45kV, and that to the suppresser electrode was between -2V and -22kV. We investigated the emittance and a beam radius by changing the voltages. In this study, the best parameters were obtained that 45kV to the medium electrode and -6 ~ -10kV to the suppresser electrode. Under the condition, the beam emittance of 0.032Σ mm mrad was achieved." @default.
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- W2185941398 date "2012-01-01" @default.
- W2185941398 modified "2023-09-27" @default.
- W2185941398 title "Simulation study of space charge effects for a 100kev- 150ma class deutron source" @default.
- W2185941398 hasPublicationYear "2012" @default.
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