High frequency bucket
The term bucket (English for bucket ) referred to with high frequency working particle accelerators , a traveling position along the electromagnetic wave to which a Bunch ( particle bunch ) can be transported continuously.
The particles in the bucket are subject to a longitudinal focus and therefore remain together as an ensemble, even if they are accelerated. At other points on the wave, the particles are partially decelerated and usually diverge.
See also
literature
F. Hinterberger: Physics of Particle Accelerators and Ion Optics . 2nd edition, Springer 2008, ISBN 978-3-540-75281-3