Workshop
Working Groups
e-Beam Driven Accelerators
Group-Leader: Patric Muggli USC (muggli@usc.edu)
Co-Group-Leader: Johnny Ng SLAC. (jng@SLAC.Stanford.EDU)
The working group
(WG) will identify the critical experiments that should
be performed to study the feasibility of a plasma-based
afterburner for a linear collider. These include, but
are not limited to, two-bunch PWFA experiments, propagation
in long plasmas leading to energy gains of the order
of the incoming beam energy, stability of the propagation
in long plasmas, erosion of the beam head when field
ionizing over distances long compared to the incoming
beam beta function, optimization of the transformer
ratio and of the loading of the wake by the beam. The
WG will also attempt to identify diagnostics appropriate
for these experiments. Possible facilities where these
experiment could be performed, and the generation of
bunches suitable for PWFA experiments will be discussed.
The WG will also discuss the necessary advances in computational
toll required to design and optimize a full-scale afterburner.
The WG will attempt to define the parameters of an afterburner
for an existing (SLAC) or future (NLC) collider, and
possibly for a future, higher energy collider. The parameters
include the incoming beam, the plasma, and the expected
beam parameters at the collision point. Issues specifically
related to collisions in a particle detector, such as
driver/witness beam separation, luminosity, background
production will also be addressed. |