RF modulation studies on an S band pulse compressor

Guan Shu; Feng-Li Zhao; Shi-Lun Pei; Ou-Zheng Xiao

doi:10.1088/1674-1137/40/3/037002

Chinese Physics C> 2016, Vol. 40> Issue(3) : 037002 DOI: 10.1088/1674-1137/40/3/037002

RF modulation studies on an S band pulse compressor

1.
Laboratory of Particle Acceleration Physics &
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Laboratory of Particle Acceleration Physics &

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Abstract：
An S band SLED-type pulse compressor has been manufactured by the Institute of High Energy Physics, Beijing, trying to reach 100 MW maximum input power, which means the output peak power is about 500 MW at the phase reversal time. To improve the reliability at very high power, amplitude modulation and phase modulation with flat-top output are considered, and RF modulation studies on the S-band SLED are presented in this paper. Furthermore, a method is developed using the CST Microwave Studio transient solver to simulate the time response of the pulse compressor, which can verify the modulation theory. In addition, the experimental setup was constructed and the flat-top output obtained in low power tests. Both amplitude modulation and phase modulation methods can give flat-top output, and the average power gain for both methods is almost the same.
- S-band ,
- SLED ,
- amplitude modulation ,
- phase modulation ,
- flat-top output ,
- transient solver

References

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[3]	R. Bossart, P. Brown, J. Mourier et al, CERN CLIC-Notes, No. 592, 2004
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[6]	S. Kashiwagi, H. Hayano, K. Kubo et al, Beam loading compensation using phase to amplitude modulation method in ATF, in Proceedings of the XIX International Linear Accelerator Conference(1998), p. 91-93
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[10]	S. H. Shaker,S. R. Corsini,P. K. Skowronski et al, phase modulator programming to get flat pulses with desired length and power from the CTF3 pulse compressors, in Proceedings of the International Particle Accelerator Conference (Kyoto, Japan, 2010), p. 1425-1427
[11]	C. Serpico, M. Dal Forno, A. Fabris et al, Optimization of the SLED Phase Modulation Parameters of the FERMI Linac, in Proceedings of the North American Particle Accelerator Conference (Pasadena, USA, 2013), p. 981-983

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Guan Shu, Feng-Li Zhao, Shi-Lun Pei and Ou-Zheng Xiao. RF modulation studies on an S band pulse compressor[J]. Chinese Physics C, 2016, 40(3): 037002. doi: 10.1088/1674-1137/40/3/037002

Guan Shu, Feng-Li Zhao, Shi-Lun Pei and Ou-Zheng Xiao. RF modulation studies on an S band pulse compressor[J]. Chinese Physics C, 2016, 40(3): 037002. doi: 10.1088/1674-1137/40/3/037002 shu

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Received: 2015-06-01
Revised: 2015-09-06

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Supported by National Natural Science Foundation of China (11475201)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

RF modulation studies on an S band pulse compressor

1. Laboratory of Particle Acceleration Physics &

2. University of Chinese Academy of Sciences, Beijing 100049, China

3. Laboratory of Particle Acceleration Physics &

Received Date: 2015-06-01

Accepted Date: 2015-09-06

Available Online: 2016-02-29

Fund Project: Supported by National Natural Science Foundation of China (11475201)

Abstract: An S band SLED-type pulse compressor has been manufactured by the Institute of High Energy Physics, Beijing, trying to reach 100 MW maximum input power, which means the output peak power is about 500 MW at the phase reversal time. To improve the reliability at very high power, amplitude modulation and phase modulation with flat-top output are considered, and RF modulation studies on the S-band SLED are presented in this paper. Furthermore, a method is developed using the CST Microwave Studio transient solver to simulate the time response of the pulse compressor, which can verify the modulation theory. In addition, the experimental setup was constructed and the flat-top output obtained in low power tests. Both amplitude modulation and phase modulation methods can give flat-top output, and the average power gain for both methods is almost the same.

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RF modulation studies on an S band pulse compressor

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