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Continuous-wave electron linear accelerators for industrial applications

“…First, for the accelerator, which is designed to operate at fixed beam power level, the coupling factor is adjusted to the value that is optimal for the given power level. Second, for the accelerator, beam power of which may change, but not very often, we set the tuning element near the coupling iris, which, depending on its position, allows one to change the coupling factor over a wide range [15]. Third, we have developed a method for fast change of the coupling factor using a tuning plunger located near the iris [16].…”

“…4(c). Low-power high-stable signal from the MO (1) through directional couplers (16,15) is admixed into the feedback circuit of each section of the multisection accelerator, ensuring self-oscillation frequency pulling to the MO frequency. Phase shifters (14) are used to adjust relative phases of the individual sections' field to ensure maximum beam acceleration.…”

“…An example of calculated (solid line) and measured (dots) AS field distribution of an electron accelerator built on the above principle [15] is given in Fig. 6.…”