Fast dose modulation using z-deflection in a rotaring anode or rotaring frame tube

Fast dose modulation using z-deflection in a rotaring anode or rotaring frame tube

  • CN 101,689,466 A
  • Filed: 06/17/2008
  • Published: 03/31/2010
  • Est. Priority Date: 06/21/2007
  • Status: Active Application
First Claim
Patent Images

1. , a kind of exposure tube component that is used to produce electromagnetic radiation comprises:

  • Electron beam source (10) that can divergent bundle (20);

    Arrangement for deflecting (40), described arrangement for deflecting are configured such that described arrangement for deflecting (40) can make institute'"'"'s electrons emitted bundle (20) deflection;

    AndAnode (50);

    Wherein said anode (50) comprises first focal spot region (51) and second focal spot region (52), wherein said arrangement for deflecting (40) is suitable for making institute'"'"'s electrons emitted bundle (20) deflection, with the first (21) of change institute'"'"'s electrons emitted bundle (20) and the second portion (22) of institute'"'"'s electrons emitted bundle (20), described first (21) is by described first focal spot region (51) irradiation, described second portion (22) is by described second focal spot region (52) irradiation, and wherein said first focal spot region (51) is by described first (21) irradiation of institute'"'"'s electrons emitted bundle (20) time, be suitable for producing electro-magnetic beams (31), described electro-magnetic beams (31) is oriented as along predetermined direction (61) and leaves described exposure tube component (1), and wherein said second focal spot region (52) is by described second portion (22) irradiation of institute'"'"'s electrons emitted bundle (20) time, and the possible electro-magnetic beams (32) that is suitable for avoiding the described second portion (22) of institute'"'"'s electrons emitted bundle (20) to produce is oriented as along described predetermined direction (61) leaves described exposure tube component (1).

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