For the beam transport system in storage ring, linear coupling is mainly caused by skew quadrupole and longitudinal solenoid field. 在储存环的束流传输系统中,斜四极场和纵向螺线管场是引起束流线性耦合的主要原因。
A comparation of behavious of a spherical solenoid and a ring solenoid magnet used in NMR imaging 核磁共振成像用的球形磁体和环形磁体性能比较
According to the vector potential of a current-carrying ring and the superposition theorem of the field, the series solutions for the magnetic fields of a solenoid wired with thin wire are obtained in this paper. 利用圆电流矢势和磁场的叠加原理,导出了细导线密绕螺线管磁场的级数表达式。