Abstracts Brochure - CERN

THPLS057
THPLS058
THPLS059
THPLS060
29-Jun-06 16:00 - 18:00 THPLS — Poster Session
Injector Design for ALBA
M. Pont, G. Benedetti, D. Einfeld, A. Falone (CELLS) E. Al-Dmour,
F. Pérez (ALBA) W. Joho (PSI)
464
The storage ring ALBA is a 3rd generation
synchrotron light source under construction
in Barcelona (Spain). The facility is based on
a 3.0 GeV storage ring of 268.8 m circumfer-
ence with a beam emittance under 5 nm.rad. Top-up operation is foreseen from the start. The injector complex for
ALBA will consist of a 100 MeV linac and a full energy booster. The linac will be a turn-key system which has already
been ordered to the industry and delivery is expected in the second half of 2007. The full energy booster will be placed
in the same tunnel as the storage ring and will have a circumference of 249.6 m. The lattice of the booster is a modified
FODO lattice providing an emittance as low as 9 nm.rad. The magnet system comprises 40 combined magnets and
60 quadrupoles. Chromaticity correction relies on the sextupole component built-in the combined magnets and the
quadrupoles. In this paper a description of the booster design including the present status of the different components
will be given.
MAX III Commissioning
M. Eriksson, M. Bergqvist, M. Brandin, L.-J. Lindgren, M. Sjöström
(MAX-lab)
Status of the MAX IV Accelerator Project
M. Eriksson, M. Berglund, K.I. Blomqvist, M. Brandin, T. Hansen,
D. Kumbaro, L.-J. Lindgren, L. Malmgren, M. Sjöström, H. Svensson,
H. Tarawneh, S. Thorin, E.J. Wallén, S. Werin (MAX-lab) B.
Anderberg (AMACC)
Some of the features of the 700 MeV MAX III
synchrotron radiation storage ring are presented,
and the commissioning of this ring is
described.
The present development of the accelerator
part of the MAX IV synchrotron radiation
project is presented. The main features of
the 3 GeV injector linac and the two storage
rings operated at different electron energies
to cover a broad spectral range of high bril-
liance undulator radiation are described in some detail. A third ring, the existing MAX III ring, is planned to be
transferred to the new facility. The preparation of the injector linac to serve as a free electron laser source and the
major sub-systems of the facility are also presented.
Lifetime and Acceptance at the SLS
Beam lifetime at the SLS storage ring is lim-
A. Streun, Å. Andersson (PSI)
ited by the Touschek effect and elastic gas
scattering. Both mechanisms are affected by
narrow gaps in the machine, elastic scattering directly by the vertical acceptance limitation, and Touschek scattering
via a possible restriction of lattice momentum acceptance due to coupling. The particle loss mechanism was explored
by evaluations of lifetime, bunch length and beam size as functions of RF voltage, scraper positions, betatron tunes
and other parameters. A summary of the measurements and an interpretation of the SLS lifetime and acceptances
will be given.