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Effect of transition section between the main switch and middle cylinder of Blumlein pulse forming line on the diode voltage of intense electron-beam accelerators

Published online by Cambridge University Press:  19 June 2009

X.-B. Cheng ,
J.-L. Liu ,
B.-L. Qian  and
J.-D. Zhang
X.-B. Cheng
Affiliation:
College of Photoelectrical Engineering and Science, National University of Defense Technology, Changsha, China
J.-L. Liu*
Affiliation:
College of Photoelectrical Engineering and Science, National University of Defense Technology, Changsha, China
B.-L. Qian
Affiliation:
College of Photoelectrical Engineering and Science, National University of Defense Technology, Changsha, China
J.-D. Zhang
Affiliation:
College of Photoelectrical Engineering and Science, National University of Defense Technology, Changsha, China
*
Address correspondence and reprint requests to: Jin-Liang Liu, College of Photoelectrical Engineering and Science, National University of Defense Technology, Changsha, 410073, China. E-mail: ljle333@yahoo.com
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Abstract

The rise-time of the pulse on the diode of the intense electron-beam accelerators (IEBA) is one of the important factors that affect the quality and characteristic of the output beam current of the IEBA. In this paper, effect of the transition section between the main switch and middle cylinder of strip spiral Blumlein line (SSBL) on the diode voltage of IEBA is analyzed in theory, based on the theoretical analysis of the wave propagation along the Blumlein pulse forming line (BPFL), the traveling time of the transition section has a great effect on the rise-time, the plateau-time, and the fall-time of the output voltage at the matching load. Furthermore, the operation of the whole accelerator consisting of the primary energy-storage capacitor, the Tesla transformer, a main switch, the transition section, BPFL, and a resistive load was simulated using a circuit-simulation code called PSpice, and the dependence of the output voltage on the inductance of the main switch and the transition section was obtained. It was found from the wave propagation theory and the circuit simulation using computer results that the wave traveling time of the transition section between the main switch and the middle cylinder of the SSBL influences considerably the rise-time, plateau-time, and fall-time of the voltage waveform at the matching load. In order to get an ideal square pulse voltage waveform at the matching load and to improve the electron beam quality of such an accelerator, the wave traveling time of the transition section should be designed as soon as possible. At last, a couple of contrastive experiments are performed on two kinds of IEBA. The experimental results agree with the theoretical analysis and simulated results.

Keywords

Blumlein pulse forming lineIntense electron-beam acceleratorVoltage waveformWave propagation
Type
Research Article
Information
Laser and Particle Beams , Volume 27 , Issue 3 , September 2009 , pp. 439 - 447
Copyright
Copyright © Cambridge University Press 2009

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References

REFERENCES

Clark, M.C., Mardar, B.M. & Bacon, L.D. (1988). Magnetically insulated transmission line oscillator. Appl. phys. Lett. 52, 78.CrossRefGoogle Scholar
Coogan, J.J., Davanloo, F. & Collins, C.B. (1990). Production of high-energy photons from flash X-ray sources powered by stacked Blumlein generators. Rev. Sci. Intrum. 61, 1448–1456.CrossRefGoogle Scholar
Friedman, S., Limpaecher, R. & Sirchis, M. (1988). Compact energy storage using a modified-spiral PFL. In Power Modulator Symposium. New York: IEEE.Google Scholar
Katsuki, S., Takano, S., Namihira, T. & Akiyama, H. (2001). Repetitive operation of water-filled Blumlein generator. Rev. Sci. Intrum. 72, 2759–2763.CrossRefGoogle Scholar
Liu, J.L., Li, C.L., Zhang, J.D., Li, S. & Wang, X.X. (2006). A spiral strip transformer type electron-beam accelerator. Laser Part. Beams 24, 355–358.Google Scholar
Liu, J.L., Yin, Y., Ge, B., Zhan, T.W., Cheng, X.B., Feng, J.H., Shu, T., Zhang, J.D. & Wang, X.X. (2007). An electron-beam accelerator based on spiral water PFL. Laser Part. Beams 25, 593–599.Google Scholar
Liu, J.L., Cheng, X.B., Qian, B.L., Ge, B., Zhang, J.D. & Wang, X.X. (2009). Study on strip spiral Blumlein line for the pulsed forming line of intense electron-beam accelerators. Laser Part. Beams 27, 95–102.Google Scholar
Liu, J.L. (2008). Research on Compact Accelerator with Long Pulse Width Based on Spiral Blumlein Line of Water Dielectric. Ph.D. dissertation, Tsinghua University, China.Google Scholar
Martin, T.H., Guenther, A.H. & Kristiansen, M. (1996). J.C. Martin on Pulsed Power. New York: Plenum Press.CrossRefGoogle Scholar
Phelps, D.A., Franklin, L., Homeyer, W., Nerem, A. & Overett, T. (1990). A compact high rep-rate pulse strip-Blumlein modulator. Power Modulator Symposium, 511–513.CrossRefGoogle Scholar
Robert, J.B. & Edl, S. (2001). High power Microwave Sources and Technologies. Beijing: Tsinghua University Press.Google Scholar
Yatsui, K., Shimiya, K., Masugata, K., Shigeta, M. & Shibata, K. (2005). Characteristics of pulsed power generator by versatile inductive voltage adder, Laser Part. Beams 23, 573–581.Google Scholar