Thermal analysis of Magnetron Injection Gun

Author

Rao, P. V Siva ; Srikrishna, P. ; Sharma, Naveen K. ; Subramanian, S.

Author_Institution

Microwave Tube R&D Centre, Defence R&D Organ., Bangalore, India

fYear

2009

fDate

28-30 April 2009

Firstpage

491

Lastpage

492

Abstract

The paper presents the Thermal analysis of Magnetron Injection Gun (MIG), which is used to provide a high quality hollow beam of electrons for Gyro devices. Thermal analysis of 16 KV MIG is carried out to minimize heater power required for maintaining more than 950degC at cathode emitter surface to get 2A of beam current for temperature limited mode of operation in Gun Collector module for Gyro TWT. After detailed analysis minimum heater power of 33 W is estimated as requirement. Further reduction in heater power to 25 W is achieved by decreasing the heat conduction path through structural change.

Keywords

cathodes; gyrotrons; heat conduction; magnetrons; thermal conductivity; beam current; cathode emitter surface; current 2 A; gun collector module; gyro devices; heat conduction path; high quality hollow beam; magnetron injection gun; power 25 W; power 33 W; temperature limited mode; thermal analysis; voltage 16 kV; Assembly; Cathodes; Conducting materials; Electron beams; Magnetic analysis; Magnetic devices; Solid modeling; Temperature; Thermal conductivity; Thermal resistance; Conduction; MIG; Radiation; Thermal conductivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2009. IVEC '09. IEEE International

Conference_Location

Rome

Print_ISBN

978-1-4244-3500-5

Electronic_ISBN

978-1-4244-3501-2

Type

conf

DOI

10.1109/IVELEC.2009.5193600

Filename

5193600