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Bipolar pulse generator for intense pulsed ion beam accelerator.

H Ito1, K Igawa, I Kitamura

  • 1Department of Electrical and Electronic System Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan. hiroaki@eng.u-toyama.ac.jp

The Review of Scientific Instruments
|May 17, 2007
PubMed
Summary

A novel bipolar pulse accelerator (BPA) generator was developed to enhance ion beam purity. Experiments successfully produced a bipolar pulse with fast rise and sharp reversing times, validating the BPA principle.

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Area of Science:

  • Physics
  • Accelerator Technology
  • Plasma Physics

Background:

  • Intense pulsed ion beams are crucial for various applications.
  • Improving the purity of these beams is a significant challenge.
  • Existing accelerators face limitations in beam purity.

Purpose of the Study:

  • To introduce and experimentally validate a new bipolar pulse accelerator (BPA).
  • To demonstrate the principle of BPA for enhanced ion beam purity.
  • To evaluate the electrical characteristics of a developed bipolar pulse generator.

Main Methods:

  • Development of a bipolar pulse generator comprising a Marx generator and a pulse forming line (PFL).
  • Inclusion of a rail gap switch at the end of the PFL.
  • Experimental operation at 70% charge condition of the PFL.

Main Results:

  • Successful generation of a bipolar pulse with distinct first (-138 kV, 72 ns) and second (+130 kV, 70 ns) phases.
  • Demonstration of fast rise times for the generated pulses.
  • Observation of sharp reversing times between the positive and negative pulses.

Conclusions:

  • The developed bipolar pulse generator successfully confirmed the BPA principle.
  • The generator exhibits desirable electrical characteristics for producing high-purity ion beams.
  • BPA technology shows promise for advancing intense pulsed ion beam applications.