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2009-09-21
New Method of Integrating Periodic Permanent Magnet (Ppm) Assembly in Traveling Wave Tubes (TWTs )
By
Progress In Electromagnetics Research C, Vol. 10, 187-199, 2009
Abstract
In traveling wave tube (TWT) amplifiers, an axial focusing magnetic field is required to keep electrons traveling in a narrow, pencil-like beam over the considerable length of the circuit. Conventionally, this focusing has been accomplished by using a periodic permanent magnet system housing axially polarized ring magnets. Making the structure to this point has been a complicated process consisting of brazing multiple metals together and honing the piece to the desired specifications. We present a new method of fabricating this housing structure monolithically using iron, developing magnetically oversaturated housing regions, and saving processing time and effort.
Citation
Thomas Mulcahy Heather Song Frank Francisco , "New Method of Integrating Periodic Permanent Magnet (Ppm) Assembly in Traveling Wave Tubes (TWTs )," Progress In Electromagnetics Research C, Vol. 10, 187-199, 2009.
doi:10.2528/PIERC09082907
http://www.jpier.org/PIERC/pier.php?paper=09082907
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