Author :
Mcintyre, Peter M. ; Bizek, Hana M. ; ELLIOTT, STEPHEN M. ; NASSIRI, ALIREZA ; POPOVIC, MILORAD B. ; Raparia, Deepak ; Swenson, Charles A. ; Gray, Henry F.
Author_Institution :
Dept. of Phys., Texas A&M Univ., College Station, TX, USA
fDate :
11/1/1989 12:00:00 AM
Abstract :
The gigatron is a new RF amplifier tube designed for linac collider applications. Three design features permit extension of the lasertron concept to very high frequencies. First, a gated field-emitter array is used for the modulated cathode. Second, a ribbon-beam geometry mitigates space-charge depression and facilitates efficient output coupling. Third, a traveling-wave output coupler is used to obtain optimum coupling to the ribbon beam. A prototype device is currently being developed. The authors describe several novel features of the gigatron and present the results of beam transport and RF field calculations for a prototype device.
Keywords :
cold-cathode tubes; electron field emission; microwave amplifiers; microwave tubes; RF amplifier tube; RF field calculations; beam transport; cold cathode; gated field-emitter array; gigatron; linac collider applications; microwave power amplifier tube; modulated cathode; optimum coupling; output coupling; prototype device; ribbon-beam geometry; traveling-wave output coupler; Acceleration; Cathodes; Electron beams; Free electron lasers; Geometrical optics; Laser beams; Linear particle accelerator; Optical coupling; Optical design; Optical modulation; Prototypes; Radio frequency; Radiofrequency amplifiers;
Journal_Title :
Electron Devices, IEEE Transactions on
