Title :
Permanent magnet system design of the 8mm third harmonic peniotron
Author :
Xinhui Wu ; Jianli Huo ; Jufen Li
Author_Institution :
Sch. of Sci., Southwest Pet. Univ., Chengdu, China
Abstract :
Based on the reliability of current magnetic and process condition, the permanent magnet system for the 8mm third harmonic peniotron is designed. The NdFeB32 is used for the permanent magnet material. The size of the total magnet is small and compact enough that the total weight is about 100kg. The amplitude of the main field is 0.396T, and the length of the uniform region is as long as 50mm. After optimization, an axis-encircling electron beam with axial velocity spread 4.48%, guiding centre deviation ratio 6.97% and high velocity ratio 2.03 is obtained, which satisfies the third harmonic peniotron. Driven by the electron gun, an output power of 35.4kW is obtained and the device efficiency is up to 56.0%, this is an attractive result in laboratory platform.
Keywords :
electron beams; electron guns; magnetrons; permanent magnets; axial velocity; electron beam; permanent magnet material; permanent magnet system design; power 35.4 kW; third harmonic peniotron; Cathodes; Harmonic analysis; Magnetic devices; Nonhomogeneous media; device performance; large-orbit electron gun; permanent magnet system; the 8mm third harmonic peniotron;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7224015