A Constrained Inverse Design of Focusing Magnetic Field with Unsaturated Magnet for Electrostatic and Magnetic Imaging 电磁聚焦成象系统中带不饱和磁铁聚焦磁场的约束逆设计
A double focusing non spatial dispersion magnet for medical accelerator 双聚焦无空间色散偏转磁铁
An inverse design with constrained conditions of focusing magnetic field with unsaturated magnet for electrostatic and magnetic imaging systems has been investigated in this paper. A constrained optimization method called interior penalty function technique has. been introduced and a universal programme has been drawn up. 本文对电磁聚焦成像系统中带不饱和磁铁的聚焦磁场的逆设计进行了探讨,用约束优化方法&内罚函数法来设计能实现给定磁场分布的实际磁聚焦线圈系统。
The movement of electron injection in the periodic focusing system using permanent magnet and the pulsation of electron injection when the magnetic intensity was unfit, and the relationship between the transmittance of electron beam and the magnet intensity were studied. 主要讲述了电子注在周期永磁聚焦系统中的运动和磁场选择不当时电子注的脉动情况以及电子注流通率与磁场强度的关系。
The proper change of the shape of exit edge can improve the sweeping homogeneous degree and decrease unfavourable focusing effect of the magnet. 适当改变出口边界形状可以改善磁铁的扫描均匀度,并减少不利的磁铁聚焦作用。
With deflection coils as its study subject, this paper mainly discusses some aspects of design and techn-ology used in focusing deflection coils Type M-M, such as resolution in corners, pattern distortion, correc-tion magnet, shielding etc. 研究对象是应用电视中使用的偏转线圈。主要讨论M-M型聚焦偏转线圈中有关的设计和工艺问题,如隅角分辨率、图形畸变、校正磁铁、屏蔽等。