In order to extract parallel beam from ion sources,it's necessary to design suitable electrode configurations in extraction zone.Taking the effect of the space-charge into account,the electrode configurations shou...In order to extract parallel beam from ion sources,it's necessary to design suitable electrode configurations in extraction zone.Taking the effect of the space-charge into account,the electrode configurations should vary with beam current density.A means of calculating extraction configuration of parallel beam with certain current density has been evolved from the space-charge limited current.By solving Poisson equation and Laplace equation,the potential distribution close to the strip beam has been gotten.展开更多
文摘In order to extract parallel beam from ion sources,it's necessary to design suitable electrode configurations in extraction zone.Taking the effect of the space-charge into account,the electrode configurations should vary with beam current density.A means of calculating extraction configuration of parallel beam with certain current density has been evolved from the space-charge limited current.By solving Poisson equation and Laplace equation,the potential distribution close to the strip beam has been gotten.
