摘要
文章提出了一种新的消色差三磁铁偏转系统，并用矩阵法分析了系统的传输特性，导出了系统的消色差关系式。该系统的中心电子轨迹在束引出方向仅占据一个偏转半径的范围，比其他消色差系统部小．特别适用于医用电子直线加速器。
A new doubly achromatic three-magnet configuration is described which is used for low ener-gy electron beam deflection with largy energy spread.The transfer behaviour of the system isstudied by first-order transfer matrix method, and its achromatic relations are obtained.The ex-tent of central electron trajectory in elemetary dipole in the direction opposite to the exit trajectoryis only one bending radius.It is specially suitable for medical electron linac than all other achro-matic systems,for it may further minimizes the rotational radius of the gantry.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1994年第4期336-340,共5页
Atomic Energy Science and Technology
关键词
医用加速器
磁铁系统
消色差
Medical electron linac Three-magnet deflection system boubly achromatic90°bending
