Space Charge Compensation in Low Energy Beam Lines
2016
The dynamics of a high intensity beam with low energy
is governed by its space-charge forces which may be responsible
of emittance growth and halo formation due to their
non-linearity. In a low energy beam transport (LEBT) line
of a linear accelerator, the propagation of a charged beam
with low energy causes the production of secondary particles
created by the interaction between the beam and the
background gas present in the accelerator tube. This phenomenon
called space-charge compensation is difficult to
characterize analitically. In order to obtain some quantitative
values to characterize the space-charge compensation (or
neutralization), numerical simulations using a 3D PIC code
have been implemented.
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