Self Field of a Relativistic Beam
The electromagnetic field generated by a high-current, relativistic beam of charged particles plays an important role in beam dynamics. On the one hand, the force exerted on the beam by this field can lead to beam instabilities and a deterioration of its properties in the process of beam generation, acceleration and transport. On the other hand, this field induces currents and charges in the beam environment that can be used for diagnostic purposes. Hence calculation of this field and the forces associated with it constitutes an essential part of beam physics for accelerators.
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