By means of a sheathing of rare earth permanent magnets oriented normally to the magnets supplying the working flux, ... It employs a bifilar coil carrying a current of 200 amperes to produce a helically varying transverse field of 500 oersteds.
|Title||:||International Conference on Insertion Devices for Synchrotron Sources|
|Author||:||Roman Orest Tatchyn, Stanford Synchrotron Radiation Laboratory|
|Publisher||:||Society of Photo Optical - 1986|