Abstracts Brochure - CERN

WEPCH — Poster Session 28-Jun-06 16:00 - 18:00
*L. M. Healy, "Lie Algebraic Methods for Treating Parameter Errors in Particle Accelerators", Doctoral Thesis. University
of Maryland, unpublished (1986).
Symplectic Interpolation
It is important to have symplectic maps for
the various electromagnetic elements in an W.W. MacKay, A.U. Luccio (BNL)
accelerator ring. For some tracking problems
we must consider elements which evolve during a ramp. Rather than performing a complicated numerical integration
for every turn, it should be possible to integrate the trajectory for a few sets of parameters, and then interpolate the
transport map as a function of one or more parameters, such as energy. We present two methods for interpolation of
symplectic matrices as a function of parameters: one method is based on the logarithm of the matrix, and the other
is based on the related but simpler Healy symplectification method.
SPS Access System Upgrade
The present SPS access system is not entirely
compatible with the formal requirements of E. Manola-Poggioli, PL. Lienard (CERN)
the French Radioprotection Authorities, and
a project has been launched to remedy this situation. The upgrade project is split into three phases that will be
implemented, in the present planning, in the shutdowns 2006, 2007 and after the first physics run of the LHC,
respectively. This paper presents the results of the safety study, the upgrade strategy and the architecture of the
upgraded system.
Linear-field Nonscaling FFAGs for Medical Applications
The simplicity, smaller aperture, and reduced
ring size associated with linear-field, C. Johnstone (Fermilab) S.R. Koscielniak (TRIUMF)
nonscaling FFAGs have made them attractive
to investigate for a broad range of applications. Significant progress has recently been made towards understanding
and modeling this new type of accelerator. The merits, drawbacks and challenges of the linear-field FFAG are
discussed here, in particular its suitability for proton and carbon cancer therapy as compared with conventional
synchrotrons and cyclotrons. Specifically, tune stabilization and dynamic aperture, a problem with both scaling and
non-scaling FFAGs, will be addressed in detail.
CERN Safety Alarms Monitoring System (CSAM)
The CERN Safety Alarms Monitoring
(CSAM) system is designed to aquire and
transmit reliably to the CERN Fire Brigade
E. Manola-Poggioli, L. Scibile (CERN)
all the alarms generated by a large number of safety alarm equipment distributed around the sites and in the
underground. The quality and accuracy of the information provided by CSAM is crucial to permit a quick and
efficient intervention by the Fire Brigade. The CSAM projet was launched in 1999 to replace the previous alarm
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