Longitudinal wakefield for an axisymmetric collimator

Collimator Wakefield Calculations for ILC-TRC Report

We summarize the formalism of collimator wakefields and their effect on beams that are near the center of the collimator gap, and apply the formalism to the TESLA, NLC, and CLIC collimation systems. Collimator Wakefield Calculations for ILC-TRC Report

Measurement of Resistivity Dominated Collimator Wakefield Kicks at the Slc

Collimation of the multi-MW beams in present linear collider designs is a critical issue. Graphite as a possible collimator material exhibits good mechanical properties but a rather poor electrical conductivity. The resulting resistive wakefields can potentially deteriorate the beam quality. The knowledge of strength and scalings of such wakefields is essential for the design of the collimation...

Longitudinal Laser Shaping in Laser Wakefield Accelerators

An Exact Solution for Classic Coupled Thermoporoelasticity in Axisymmetric Cylinder

In this paper, the classic coupled poro-thermoelasticity model of hollow and solid cylinders under radial symmetric loading condition is considered. A full analytical method is used and an exact unique solution of the classic coupled equations is presented. The thermal and pressure boundary conditions, the body force, the heat source and the injected volume rate per unit volume of a distribute ...

Laser wakefield excitation and measurement by femtosecond longitudinal interferometry.

Plasma density oscillations (Langmuir waves) in the wake of an intense (Ipeak 3 1017W/cm2) laser pulse (100 fs) are measured with ultrafast time resolution using a longitudinal interferometric technique. Phase shifts consistent with large amplitude (Æne=ne 1) density waves at the electron plasma frequency were observed in a fully tunnel-ionized He plasma, corresponding to longitudinal electric ...