Beam instabilities cover a wide range of effects in particle accelerators and they have been
the subjects of intense research for several decades. As the machines performance was …

Wakes and impedances of single accelerator elements can be obtained by means of
theoretical calculation, electromagnetic (EM) simulations or bench measurements. Since …

The development of modern accelerator and free-electron laser projects often requires one
to consider wakefields of very short bunches in arbitrary three-dimensional structures. To …

We propose an implicit scheme for the calculation of electromagnetic fields in the vicinity of
short electron bunches moving in a transversally bounded domain, as it has place in particle …

One of the main challenges of future physics projects based on particle accelerators is the
need for high intensity beams. However, collective effects are a major limitation which can …

We describe and demonstrate a time-domain boundary-element method for numerical
computation of wake fields. The accelerator structure is modeled with a surface mesh, and …

ABCI is a computer program which solves the Maxwell equations directly in the time domain
when a bunched beam goes through an axi-symmetric structure on or off axis. An arbitrary …

A new approach for the computation of short range wake fields for ultra-relativistic bunches
in linear accelerators is presented. The method is based on the time domain solution of …

Computation of Electromagnetic Fields Generated by Relativistic Beams in Complicated
Structures Page 1 Algorithms and Applications Computation of Electromagnetic Fields Generated …

The FERMI free-electron laser (FEL) of Elettra Sincrotrone Trieste, Italy, is a user facility
driven by a 1.5 GeV 10–50 Hz S-band radiofrequency linear accelerator (linac), and it is …