Title :
The design of periodic magnetic focusing structures
Author :
Sterrett, J.E. ; Heffner, H.
Author_Institution :
Stanford University, Stanford, Calif.
Abstract :
Charts are presented which facilitate the design of permanent-magnet periodic structures for focusing electron beams. These charts include curves showing the peak magnetic field required for periodic focusing in terms of the electron-beam parameters, the magnet and pole-piece dimensions required to obtain this peak field, and the resultant weight of the focusing system. Thus, sufficient information is given to design completely a periodic permanent-magnet focusing structure for a given electron beam. The design of a focusing structure for a 1-watt X-band tube is carried through in detail to exemplify use of the charts.
Keywords :
Anodes; Assembly; Cathodes; Electron beams; Electron devices; Magnetic devices; Magnetic fields; Magnetic flux; Magnetic separation; Periodic structures; Plasma waves; Power supplies; Solenoids;
Journal_Title :
Electron Devices, IRE Transactions on
DOI :
10.1109/T-ED.1958.14326
