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One-Point Multipactor in Crossed Fields of RF Cavities

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Multipactor in Accelerating Cavities

Part of the book series: Particle Acceleration and Detection ((PARTICLE))

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Abstract

As mentioned earlier in the book, two forms of multipacting are distinguished in RF devices: one-point and two-point multipacting. Sometimes these are called one-surface and two-surface multipacting, respectively. One-point multipacting (we will call it MP1 in the following) is characterized as follows: (i) the electrons are emitted from and returned to the same surface and (ii) the time between surface impacts is an integer number of RF periods. In the case of two-point multipacting (MP2), the electrons are oscillating in a cavity in such a manner that they hit the surface – typically of the opposite cavity walls – after an odd number of half periods (1/2, 3/2, 5/2, …).

This approach to MP1 was first considered in [1] and then expanded in [2].

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Change history

  • 18 January 2024

    A correction has been published.

References

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Shemelin, V.D., Belomestnykh, S.A. (2020). One-Point Multipactor in Crossed Fields of RF Cavities. In: Multipactor in Accelerating Cavities. Particle Acceleration and Detection. Springer, Cham. https://doi.org/10.1007/978-3-030-48198-8_9

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