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    • 7. 发明授权
    • Neutral beamline with improved ion energy recovery
    • 中性束线具有改善的离子能量回收率
    • US4434131A
    • 1984-02-28
    • US253641
    • 1981-04-13
    • William K. DagenhartHalsey H. HaseltonWilliam L. StirlingJohn H. Whealton
    • William K. DagenhartHalsey H. HaseltonWilliam L. StirlingJohn H. Whealton
    • H05H1/22G21B1/00
    • H05H1/22
    • A neutral beamline generator with unneutralized ion energy recovery is provided which enhances the energy recovery of the full energy ion component of the beam exiting the neutralizer cell of the beamline. The unneutralized full energy ions exiting the neutralizer are deflected from the beam path and the electrons in the cell are blocked by a magnetic field applied transverse to the beamline in the cell exit region. The ions, which are generated at essentially ground potential and accelerated through the neutralizer cell by a negative acceleration voltage, are collected at ground potential. A neutralizer cell exit end region is provided which allows the magnetic and electric fields acting on the exiting ions to be closely coupled. As a result, the fractional energy ions exiting the cell with the full energy ions are reflected back into the gas cell. Thus, the fractional energy ions do not detract from the energy recovery efficiency of full energy ions exiting the cell which can reach the ground potential interior surfaces of the beamline housing.
    • 提供了具有非中和离子能量回收的中性束线发生器,其增强了离开束线的中和器单元的光束的全能量离子分量的能量回收。 离开中和器的未中和全能离子从光束路径偏转,并且电池中的电子被横向于细胞出射区域中的束线施加的磁场阻挡。 以基本接地电位产生并通过负加速电压加速通过中和器电池的离子在地电势下收集。 提供了中和器单元出口端区域,其允许作用在离开的离子上的磁场和电场紧密耦合。 结果,离子电池离子的全能量离子的能量离子被反射回到气室中。 因此,分数能量离子不会降低离开电池的全能离子的能量回收效率,该离子能够到达束线壳体的地电位内表面。