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INTERLACED MULTI-ENERGY BETATRON WITH ADJUSTABLE PULSE REPETITION FREQUENCY

  • US 20150043717A1
  • Filed: 08/07/2013
  • Published: 02/12/2015
  • Est. Priority Date: 08/07/2013
  • Status: Active Grant
First Claim
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1. A method of operating a betatron device having swing coils for accelerating electrons and having bias coils to provide electron pulses at different energies, the method comprising:

  • operating the swing coils to generate a swing component of a total magnetic field at the electron orbit over a plurality of cycles, the electron orbit being a circular path in which accelerated electrons travel;

    operating the bias coils to generate a bias component of the total magnetic field at the electron orbit;

    operating the bias coils such that the bias magnetic component has a constant first magnitude during a first acceleration portion of a first cycle of the plurality of cycles;

    accelerating, with the swing coils, a first packet of electrons with a first swing in flux subject to the total magnetic field during the first acceleration portion of the first cycle to have a first energy;

    expanding an electron orbit of the first packet of electrons at an end of the first acceleration portion;

    operating the bias coils such that the bias magnetic component has a constant second magnitude during a second acceleration portion of a second cycle of the plurality of cycles, the second magnitude being different than the first magnitude; and

    accelerating, with the swing coils, a second packet of electrons with a second swing in flux subject to the total magnetic field during the second acceleration portion of the second cycle to have a second energy, the second energy being different than the first energy.

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