Abstracts Brochure - CERN

THPLS — Poster Session 29-Jun-06 16:00 - 18:00
2010, including the operation of seven beamlines, including six insertion devices. The design of the lattice and of the
major components of the accelerator complex (linac and booster, magnets, RF system, vacuum system) is finish and
the procurement procedure has started for the large majority of them. The construction of the building will start in
the first half of 2006. This report offers an overview of the status of the project, with special emphasis in the new
developments.
Closed Orbit Correction and Beam Dynamics Issues at ALBA
ALBA is a 3 GeV light source being built in
Spain. The light source should be opera- M. Muñoz, D. Einfeld (ALBA)
tional in 2010.The lattice for the storage ring
is now finalized. The basic cells is an extended DBA-like structure with finite dispersion in the straight sections,
providing low emittance (under 5nmrad) , small beam cross sections at the source points (less than 150 micro-m
horizontal and 10micro-m vertical), and a large number of straight sections (4 times 8m, 12 times 4.2m and 8 times
2.6m). In this paper we review the properties of the lattice with special emphasis in the closed orbit correction system
and the lifetime limits.
Effects of Phase 1 IDs on the Beam Dynamics at the ALBA Project
The ALBA new third generation light source
offers a large number of straight sections M. Belgroune, M. Muñoz (CELLS)
to its community of users. Three types of
straights will be available, 4 of 8 m, 12 of 4.2 m and 8 of 2.6 m. The compact lattice of a 268 m circumference ring
is now mature and its main components are already fixed. We discuss here the beam dynamics studies performed
for Phase 1 Insertion Devices (IDs) where two helical devices HU71, two in-vacuum undulators U21 and a multipole
wiggler have been modeled using the kick map approach. This allowed defining the suitable compensation scheme
in a machine where the vertical focusing is mainly controlled by the gradients in the dipole magnets. In addition,
the Touschek lifetime computations and the identification of the limiting resonances using Frequency Map Analysis
showed how strong the working point is in the presence of these IDs. Tolerances on the multipolar components due
to the fields’ roll-off have also been defined and allowed the progress in the IDs design.
Synchrotron Radiation Monitors for the ALBA Synchrotron
ALBA is a 3 GeV, low emittance third generation
synchrotron light source that is in U. Iriso (CELLS) F. Pérez (ALBA)
the construction phase in Cerdanyola, Spain.
Synchrotron Radiation Monitors (SRM) are one of the most useful, non-destructive tools to easily obtain information
of three important parameters for a synchrotron user: beam position, beam dimensions and beam stability. These
monitors diagnose beam performance using the radiation produced when the beam traverses a bending magnet.
An extensive usage of SRM, based on the visible part of the spectrum, is planned in the ALBA synchrotron: Linac,
Booster, Transfer Lines and the Storage Ring. The latter will be equipped as well with an SRM based on the x-ray part
of the spectrum, using the PinHole technique in order to accurately measure the low beam size and emittance. This
paper describes the different SRM designs for the ALBA light source.
463
THPLS054
THPLS055
THPLS056