An Re-entrant Cavity and Its Cathode Structure for the Thermionic Microwave Gun

Huang Yongzhang; Wu Gang

Chinese Physics C> 1994, Vol. 18> Issue(7) : 658-663

An Re-entrant Cavity and Its Cathode Structure for the Thermionic Microwave Gun

Huang Yongzhang ^, ,
Wu Gang

Application Division,Institute of High Energy Physics,Academia Sinica Beijing 100080

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Abstract：
This paper introduces a single cell re-entrant cavity and its cathode structure used in the thermionic microwave gun. The essential parameters of the cavity are chosen according to the requirements of produced electron beam. We report design consideration on cavity shape, field distribution, resonant. frequency and coupling coefficient. Then we give the cold RF measurement results. The cavity is successfully used in the gun. Results of simulations is presented and is compared with measurements.

References

[1]

C.Travier,SERA/90-219/RFG.RFG Note07,LAL,France（1990）.[2]Xie Jialin,etal.Nucl.Instru.Meth.in Rhys.Res,A272（1988）40.[3]G.A.Westenskow and J.M.J.Madey,HEPL Technical Note,TN-86-1,1986.[4]]K.Halbach and R.F.Holsinger,Particle Accelerators,7（1976）213.[5]黄永章，北京自由电子激光器用热阴极微波电子枪的理论与实验研究和束流输运线的设计与制造，中国科学院高能物理研究所博士论文，1991.[6]R.Klatt,et al,MAFIA user guide,May,1988.[7]G.A.Loew,et al,IEEE.NS-12（1965）580.[8]E.L.Cinzton,《Microwave Measurements》McGraw-Hill book Company Inc.（1957）

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Huang Yongzhang and Wu Gang. An Re-entrant Cavity and Its Cathode Structure for the Thermionic Microwave Gun[J]. Chinese Physics C, 1994, 18(7): 658-663.

Huang Yongzhang and Wu Gang. An Re-entrant Cavity and Its Cathode Structure for the Thermionic Microwave Gun[J]. Chinese Physics C, 1994, 18(7): 658-663. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

An Re-entrant Cavity and Its Cathode Structure for the Thermionic Microwave Gun

Huang Yongzhang ^,
Wu Gang

Corresponding author: Huang Yongzhang,

Application Division,Institute of High Energy Physics,Academia Sinica Beijing 100080

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-07-05

Abstract: This paper introduces a single cell re-entrant cavity and its cathode structure used in the thermionic microwave gun. The essential parameters of the cavity are chosen according to the requirements of produced electron beam. We report design consideration on cavity shape, field distribution, resonant. frequency and coupling coefficient. Then we give the cold RF measurement results. The cavity is successfully used in the gun. Results of simulations is presented and is compared with measurements.