Laser and Particle Beams

Research Article

Study of low impedance intense electron-beam accelerator based on magnetic core Tesla transformer

J-L. Liua1, H-B. Zhanga1 c1, Y-W. Fana1, Z-Q. Honga1 and J-H. Fenga1

a1 College of Opto-electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, Peoples Republic of China


An intense electron-beam accelerator, which consists of a primary storage capacitor system, a magnetic core Tesla transformer, Blumlein pulse forming line of water dielectric, and a field-emission diode, are constructed and described. The experimental results show that the output voltage of transformer is more than 740 kV, the rise time is about 5 µs, the diode voltage is about 596 kV, electron beam current is about 60 kA, the duration is about 100 ns, and the power is 36 GW when charging voltage is 40 kV. It was suitable to drive magnetically insulated transmission line oscillator. And it can be also used in materials surface modification. This accelerator is very compact and works stably and reliably.

(Received September 07 2011)

(Accepted January 06 2012)


  • Accelerator;
  • Magnetic core Tesla transformer;
  • Materials surface modification;
  • MILO;
  • Water Blumlein line


c1 Address correspondence and reprint requests to: Hong-Bo Zhang, College of Photoelectical Engineering and Science, National University of Defense Technology, Changsha 410073, Peoples Republic of China. E-mail: