Title :
The Effect of Non Uniform Permanent Magnet Material on Transverse Fields in Periodic Permanent Magnet Focused Traveling Wave Tubes
Author :
Willhite, J. ; Falce, Lou ; Chesnut, M.
Abstract :
Data will be presented that demonstrates the effect of using uniform vs. non uniform magnetic material. Non-uniform magnetic material will be produced by "knocking" the individual magnets down from a range 18-20% higher than nominal gauss. Normal processing requires a "knockdown" range 0-5%. Individual magnets will be tested for circumferential variation. Tube performance will be measured for both uniform and non-uniform magnet PPM stacks
Keywords :
magnetic materials; permanent magnets; travelling wave tubes; PPM stacks; circumferential variation; magnetic material; nonuniform permanent magnet material; periodic permanent magnet; transverse fields; traveling wave tubes; tube performance; Cobalt alloys; Coercive force; Electron beams; Magnetic circuits; Magnetic fields; Magnetic materials; Permanent magnets; Power industry; Samarium alloys; Voltage;
Conference_Titel :
Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
1-4244-0108-9
DOI :
10.1109/IVELEC.2006.1666399
