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Performance of an impedance-variable pulsed high-power electron-beam accelerator based on energy efficient transmission. | LitMetric

AI Article Synopsis

  • High-power pulsed electron-beam accelerators are essential for various sectors like medicine and defense, requiring efficient designs to meet high-power specifications.
  • The accelerator design features a Marx generator and a Blumlein pulse forming line, capable of achieving high voltages up to 1.1 MV while efficiently transferring energy at around 85% efficiency.
  • Performance testing involved using a dummy load to adjust diode impedance and prevent circuit damage from reflected waves, ensuring that the electron beam reaches energy levels of 1 MeV within a 100 ns pulse width.

Article Abstract

Versatile high-power pulsed electron-beam accelerators that meet the requirements of pulsed high-power specifications are needed for appropriate applications in medical industry, defense, and other industries. The pulsed electron beam accelerator comprising a Marx generator and Blumlein pulse forming line (PFL) is designed to accelerate the electron beams at the level of 1 MeV when electrostatically discharging. The performance specifications of Marx generators consisting of a 100 kV DC power supply, R-L-C circuit, and high voltage switch are at a maximum 800 kV. At this time, by using the capacitance mismatching principle between the Marx generator and the Blumlein PFL under the law of preserving the amount of charge, it is possible to generate a high voltage in the form of a square pulse up to about 1.1 MV, as much as 1.37 times the charged voltage of the Marx generator. As a result, energy transmission from the Marx generator with a high efficiency of about 85% to the Blumlein PFL is possible. The aim of this study is that the pulsed high-power electron-beam accelerator can be used to change the diode impedance, and the energy of the accelerated electron beam reaches a level of 1 MeV with the square pulse width of about 100 ns at the flat-top in the range of relativistic electron beam generation. Performance tests were securely carried out by installing a dummy load based on CuSO solution varying the diode impedance to deter damage to the circuit by preventing reflected waves from being generated in the load.

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Source
http://dx.doi.org/10.1063/5.0025975DOI Listing

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