Abstracts Brochure - CERN

MOPLS089
MOPLS090
MOPLS091
26-Jun-06 16:00 - 18:00 MOPLS — Poster Session
of 6MHz are under investigation. Such a kicker system should minimize the perturbation of the incoming bunch
with a finite bunch length, while it kicks the outgoing bunch by more than 1 millirad. Various arrangements of such
kickers along the beamlines are discussed.
Optimization of ILC Damping Rings’ Lattice
Several damping ring designs for the Interna-
Y. Sun (PKU/IHIP)
tional Linear Collider (ILC) have been proposed.
Among them, two 6 km positron
rings and one 6 km electron ring are proposed as baseline. At the same time, 17 km dogbone ring is selected as
an alternative since it is harder to achieve the required acceptance. To achieve a good acceptance and reasonable
extracted emittance, we optimize the lattice of the 17 km dogbone ring and the 6 km circular ring. In this paper,
we report beam dynamics characterizations and optimizations for the 6 and 17 km damping rings. We used the
accelerator code MAD for matching and tracking.
Design of a Strip-line Extraction Kicker for CTF3 Combiner Ring
I. Rodriguez, F. Toral (CIEMAT) D. Alesini, F. Marcellini, M. Zobov
(INFN/LNF) L. García-Tabarés (CEDEX)
134
The new CLIC test facility (CTF3) is the latest
stage to prove the technical feasibility of the
CLIC project. An extraction kicker is necessary
for the combiner ring, and it will be a
strip-line type device due to lower coupling impedances and straightforward fabrication. The field uniformity together
with a correct beam dynamics are the most challenging issues of this design. The main parameters of the
kicker are analytically calculated using standard analytic formulae. The numeric modelling and simulation of several
possible straight sections are reported. The field homogeneity and the kick angle are calculated in a 3D finite element
model, and the characteristic impedance is matched with the 50 Ohm load. Several manufacturing issues for the first
prototype are also outlined.
First Design of a Post Collision Beam Line for CLIC at 3 TeV
V.G. Ziemann, T. J. C. Ekelof, A. Ferrari (UU/ISV) P. Eliasson
(CERN)
As part of the Post collision diagnostic task
of the ILPS work-package of EuroTeV we discuss
a design of the beam line between the interaction
point and the beam dump for CLIC
with a center-of-mass energy of 3 TeV. The design is driven by the requirement to transport the beam and all secondaries
such as beamstrahlung and coherent pairs to the beam dump with minimal losses. Moreover, we discuss the
integration of novel diagnostic methods into the post collision beam line based on the detection of coherent pairs and
monitoring the beam profile of the primary beam.