To meet the LHC schedule
aiming at a start up with beam in mid-2007, the year 2005 is devoted
to development and installation activities for the LHC. In order to liberate
sufficient resources for LHC work, the CERN management has decided not
to run the PS and
the SPS in
2005; only the ISOLDE/REX facility
will run for physics.
2005 is the year when the first cryomagnets will be installed
in the LHC tunnel, when LHC hardware commissioning will start, sector
by sector, on the powering systems and when the experiments (Alice, Atlas, CMS, LHCb)
will be heavily involved in assembling and testing their detectors. Behind
the scene, hundreds of cryomagnets are being carefully tested on 12 large
test benches running day and night and a huge distributed cryogenic plant
is being installed and commissioned around the 27 km circumference of
Meanwhile, the new Low Energy Ion Ring (LEIR)
that will produce lead ions for LHC is being commissioned with the aim
of colliding the first lead ion beams in LHC in 2008. The controls for CNGS,
another exciting experiment aiming at sending neutrinos from the SPS
to the Gran-Sasso laboratory near Rome, are being prepared for beam commissioning
in 2006. Finally the PS and the SPS are being refurbished to upgrade
their performance and ensure they will run reliably as injectors for
LHC. In the PS half of the 50-year old main magnets will be exchanged
and in the SPS the controls are being upgraded to allow for fast cycle
changes in order to produce efficiently the numerous beams needed for
physics and for LHC.
CERN also operates the CTF3 R&D facility where the technology
for a future 3 TeV e+/e- Linear Collider (CLIC)
is being tested. A vigorous programme was recently setup to get to the
full validation of all the major concepts by 2009, resulting in an expanded
programme of implementation. As a result a new slice of this facility
is being installed every year: in 2005 a "delay loop"
will be installed and commissioned.
For the cherry on the cake, it has been decided to regroup, in
a single control room, the operation of all the CERN accelerators as
well as the monitoring of the technical infrastructure. This will improve
the operation of the accelerators and especially the production of the
beams for LHC. So in 2005 the CERN Control Center (CCC),
a 625 m2 extension to the old SPS and LEP control room is being built
on the Prévessin site.
Thus, 2006 will be a very challenging year. The start-up of all
the CERN machines for the whole community of physicists, eager to get
as much beam as possible after the 17 month stop, from a completely new
control room is in itself an important step. However the commissioning
of the new CNGS high intensity beam, the commissioning of the ion beam
produced by LEIR in the PS and the SPS and the commissioning of the proton
beam in the first sector of LHC by the end of the year will doubtlessly
earmark 2006 as the more ambitious accelerator run since CERN started.
ICALEPCS 2005 in Geneva will evolve in a bustling environment,
a stones throw away from where it all happens and will provide the opportunity
to visit the sites of these activities and to discuss and exchange experience
with the many engineers involved in the development of controls at CERN.