发明授权
US4322622A Device for the achromatic magnetic deflection of a beam of charged particles and an irradiation apparatus using such a device 失效
用于带电粒子束的消色差磁偏转的装置和使用这种装置的照射装置

  • 专利标题: Device for the achromatic magnetic deflection of a beam of charged particles and an irradiation apparatus using such a device
  • 专利标题(中): 用于带电粒子束的消色差磁偏转的装置和使用这种装置的照射装置
  • 申请号: US136820
    申请日: 1980-04-03
  • 公开(公告)号: US4322622A
    公开(公告)日: 1982-03-30
  • 发明人: Dominique Tronc
  • 申请人: Dominique Tronc
  • 申请人地址: FRX Buc
  • 专利权人: C.G.R. MeV
  • 当前专利权人: C.G.R. MeV
  • 当前专利权人地址: FRX Buc
  • 优先权: FRX7908370 19790403
  • 主分类号: H01J3/02
  • IPC分类号: H01J3/02 A61N5/10 G21K1/093 G21K5/04 H01J3/26 H01J49/20 H05H7/00 G21K1/08
Device for the achromatic magnetic deflection of a beam of charged
particles and an irradiation apparatus using such a device
摘要:
An achromatic magnetic deflection device for deflecting by an angle .phi. between .pi. and 2.pi. a beam of charged accelerated particles having different momentum. This device comprises an electromagnet provided with pole pieces delimiting three contiguous sectors, the whole of these sectors, having an axis of symmetry XX, presenting flat input E and output S faces and common faces F.sub.1 and F.sub.2 in an arc of a circle, the position, the radius of curvature of these faces F.sub.1, F.sub.2 as well as the value of the magnetic induction in the sectors being chosen so that the different paths are substantially orthogonal both to faces F.sub.1, F.sub.2 and to axis XX.
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