DocumentCode :
2468546
Title :
High power Cusp guns
Author :
Gallagher, David ; Frawley, Philip ; Kreischer, Kenneth ; Heinen, Vernon
Author_Institution :
Adv. Defensive Syst. Technol. Center, Northrop Grumman Corp., Rolling Meadows, IL, USA
fYear :
2002
fDate :
2002
Firstpage :
270
Lastpage :
271
Abstract :
This paper presents the final test results of a 3.5-A Cusp gun (original design) and the status of the development of an 8-A Cusp gun (high perveance design). Both guns are designed to operate at 70 kV with beam alpha (transverse to axial velocity ratio) = 1.5, beam ripple < 10%, and axial velocity spread < 5%. The Cusp gun produces the axis encircling electron beam required for high harmonic gyrotrons and peniotrons. Cooperative experiments are planned at the University of California - Davis (UCD) to test devices operating at 35 GHz in the 2nd harmonic and at 94 GHz in the 6th harmonic, using these Cusp guns. The long-term goal is to develop a compact, sixth harmonic, 25-50 kW, 94 GHz peniotron or gyrotron that is focused by permanent magnets and uses the high perveance Cusp gun.
Keywords :
electron guns; gyrotrons; harmonics; microwave tubes; millimetre wave tubes; permanent magnets; 25 to 50 kW; 3.5 A; 35 GHz; 70 kV; 8 A; 94 GHz; University of California - Davis; axial velocity spread; axis encircling electron beam; beam alpha; beam ripple; high harmonic gyrotrons; high power Cusp guns; peniotrons; permanent magnets; perveance; transverse to axial velocity ratio; Anodes; Cathodes; Coils; Electron beams; Guns; Gyrotrons; Magnetic field measurement; Space charge; Testing; Velocity measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
Type :
conf
DOI :
10.1109/IVELEC.2002.999374
Filename :
999374
Link To Document :
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