Study of X-Band High-Power Sub-nanosecond Pulse Generation Based on Superradiance Mechanism

HU Lin-Lin; MENG Fan-Bao; CHEN Hong-Bin; ZHOU Chuan-Ming

Chinese Physics C> 2006, Vol. 30> Issue(11) : 1096-1099

Study of X-Band High-Power Sub-nanosecond Pulse Generation Based on Superradiance Mechanism

Institute of Applied Electronics of CAEP, Mianyang 621900, China2 Department of Graduate Student, CAEP, Mianyang 621900, China3 Technological Committee,CAEP, Mianyang 621900, China

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Abstract：
A novel backward wave oscillator based on the superradiance mechanism is designed in this paper. The superradiance mechanism in the relativistic backward oscillator was studied by the 2.5 dimensional particle simulation code KARAT. The simulation indicated that with the driving electron beam of voltage 430kV, current 4kA and pulse width 3.1ns, the device could generate sub-nanosecond microwave with peak power 1.5GW,operating frequency 10GHz, and pulse width 500ps. The peak power conversion ratio reached 87.2%. Under the superradiance mechanism, the peak power is proportional to the square of beam pulse width when the latter is less than 3.5 ns.

References

[1]

. Ginzburg Naum S, Zotova Irina V, Novozhilova Yulia Vet al. Generation of Powerful Ultrashort Microwave PulsesBased on Superradiance of Subnanosecond High-currentElectron Bunches. In: High-Power Particle Beams. 19982. Ginzburg Naum S, Zotova Irina V, Novozhilova Yulia V etal. Physics Review, 1999, E60(3): 3297-33033. Vlasov Alexander N, Ilyin Anton S, Carmel Yuval. IEEETrans. on Plasma Sci., 1998, 26(3): 605-6144. Yalandin Michael I, Shpak Valery G, Shunailov Sergei A etal. IEEE Trans. on Plasma Sci., 2000, 28(5): 1615-16195. Klimov Alexei I, Korovin Sergei D, Rostov Vladislav V etal. IEEE Trans. on Plasma Sci., 2002, 30(3): 1120-11246. Eltchnaniov Anton A, Korovin Sergei D, Rostov VladislavV et al. Laser and Particle Beams, 2003, 21: 187-1967. Eltchnaniov Anton A, Korovin Sergei D, Mesyts GennadyA et al. IEEE Trans. on Plasma Sci., 2004, 32(3): 1093-10998. Tarakanov Vladimir P. User's Manual for Code KARAT.Ver. 8. 17. Berkeley Research Associates Inc, 2004

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HU Lin-Lin, MENG Fan-Bao, CHEN Hong-Bin and ZHOU Chuan-Ming. Study of X-Band High-Power Sub-nanosecond Pulse Generation Based on Superradiance Mechanism[J]. Chinese Physics C, 2006, 30(11): 1096-1099.

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Received: 2006-02-16
Revised: 2006-03-31

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of X-Band High-Power Sub-nanosecond Pulse Generation Based on Superradiance Mechanism

Corresponding author: HU Lin-Lin,

Institute of Applied Electronics of CAEP, Mianyang 621900, China2 Department of Graduate Student, CAEP, Mianyang 621900, China3 Technological Committee,CAEP, Mianyang 621900, China

Received Date: 2006-02-16

Accepted Date: 2006-03-31

Available Online: 2006-11-05

Abstract: A novel backward wave oscillator based on the superradiance mechanism is designed in this paper. The superradiance mechanism in the relativistic backward oscillator was studied by the 2.5 dimensional particle simulation code KARAT. The simulation indicated that with the driving electron beam of voltage 430kV, current 4kA and pulse width 3.1ns, the device could generate sub-nanosecond microwave with peak power 1.5GW,operating frequency 10GHz, and pulse width 500ps. The peak power conversion ratio reached 87.2%. Under the superradiance mechanism, the peak power is proportional to the square of beam pulse width when the latter is less than 3.5 ns.

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Study of X-Band High-Power Sub-nanosecond Pulse Generation Based on Superradiance Mechanism

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