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    • 7. 发明专利
    • Cyclotron
    • CYCLOTRON
    • JP2014049414A
    • 2014-03-17
    • JP2012194282
    • 2012-09-04
    • Sumitomo Heavy Ind Ltd住友重機械工業株式会社
    • MIYASHITA TAKUYAMATSUMURA KAZUTOMO
    • H05H13/00A61N5/10
    • H05H13/005H05H7/00H05H2007/082
    • PROBLEM TO BE SOLVED: To provide an internal ion source cyclotron in which the life of a filament can be prolonged.SOLUTION: There is provided a cyclotron 1 accelerating ions generated with an ion source 2 provided in a hollow yoke 7 by a magnetic field. The ion source 2 includes a conductive chimney 10, and a filament 11 arranged in the chimney 10. A current is supplied from a power supply 14 to the filament 11, and a direction of the current to be supplied to the filament 11 is changed. With this cyclotron 1, since a direction of a Lorentz force is changed by changing the direction of the current to be supplied to the filament 11, deformation of the filament 11 can be suppressed, and the life of the filament 11 can be prolonged.
    • 要解决的问题:提供一种内部离子源回旋加速器,其中长丝的寿命可以延长。解决方案:提供了一种回旋加速器1,加速离子源2产生的离子通过磁场设置在空心磁轭7中。 离子源2包括导电烟囱10和布置在烟囱10中的细丝11.电流从电源14供应到灯丝11,并且改变供给灯丝11的电流的方向。 利用这种回旋加速器1,由于通过改变要供给到灯丝11的电流的方向来改变洛仑兹力的方向,所以能够抑制细丝11的变形,能够延长灯丝11的寿命。