BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:A cost-effective Design for a Neutrino Factory
DTSTART;VALUE=DATE-TIME:19990715T140000Z
DTEND;VALUE=DATE-TIME:19990715T143000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033971@cern.ch
DESCRIPTION:The design of a neutrino factory based on a muon storage ring
draws upon several tried and tested technologies\, upon existing design wo
rk for other accelerator projects\, e.g. neutron spallation sources\, but
it also depends on the development of technical solutions to certain speci
fic requirements. These include the efficient capture of muons in a large
volume of phase space\, some reduction in overall phase space volume by io
nisation cooling\, fast acceleration to the desired energy to avoid unacce
ptable decay losses and storage in a decay ring optimised for its purpose
as a neutrino source. There is no obvious single combination of machines t
o achieve this aim. \n\nHere we present a scenario\, which relies\, to a l
arge extent upon known technologies together with a relatively unambitious
mix of new schemes. Some will be tried and tested during design and const
ruction. Others during the early operational phase of the facility leading
to a staged upgrade path - a well-proven strategy in the development of a
ccelerator complexes. Organiser(s): Werner Herr / SL Division Note: Tea an
d coffee will be served at 15:30 in front of the Auditorium \n\nhttp://ind
ico.cern.ch/conferenceDisplay.py?confId=a033971
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033971
END:VEVENT
BEGIN:VEVENT
SUMMARY:Use of Industrial Components in SL/BT Equipment Controls
DTSTART;VALUE=DATE-TIME:19990917T090000Z
DTEND;VALUE=DATE-TIME:19990917T143000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033969@cern.ch
DESCRIPTION:The control system of all SPS target stations\, beam absorbers
and other aperture limiting devices is presently being refurbished\, usin
g \nsolely standard industrial hardware and software components. SIEMENS S
imatic S7-300 programmable logic controllers serve as equipment controller
s. They are connected through Profibus to a WinNT front-end running the SI
EMENS WinCC SCADA package\, which acts as local controller and gateway for
remote access. A variant configuration\, where the PLCs are directly link
ed to Ethernet\, has been used for controlling the SPS Q measurement kicke
rs.\n\nThese and some other SL/BT projects will be reviewed where fully of
f-the-shelf components have been successfully integrated into the SL accel
erator controls infrastructure. The arguments leading to the various techn
ical choices will be laid down including a report of the \nexperience gain
ed. Finally\, the presentation will address the perspectives and current i
deas for using industrial components in \ncontrolling SL/BT equipment duri
ng the LHC era.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a0339
69
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033969
END:VEVENT
BEGIN:VEVENT
SUMMARY:LEP Dismantling \n
DTSTART;VALUE=DATE-TIME:19990930T140000Z
DTEND;VALUE=DATE-TIME:19990930T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033972@cern.ch
DESCRIPTION:After over ten years of very successful operation\, LEP has to
make way for the LHC at the end of 2000. The dismantling of an accelerato
r of the size and complexity of LEP requires very rigorous preparation and
planning. After a brief presentation of the external constraints of the p
roject (LHC Civil Engineering\, INB regulations...) the global planning an
d general principles will be reviewed. Some detailed aspects of the techni
ques to be used and the associated logistics will then be presented with a
n emphasis on those which will benefit the personnel who will have to do t
he work.Organiser(s): Werner Herr / SL DivisionNote: Tea and coffee will b
e served at 15:30 in front of the Auditorium \n\nhttp://indico.cern.ch/con
ferenceDisplay.py?confId=a033972
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033972
END:VEVENT
BEGIN:VEVENT
SUMMARY:The LHC Beam Dump Kicker Systems\n
DTSTART;VALUE=DATE-TIME:19991014T140000Z
DTEND;VALUE=DATE-TIME:19991014T143000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033973@cern.ch
DESCRIPTION:Organiser(s): Werner Herr / SL DivisionNote: Tea and coffee wi
ll be served at 15:30 in front of the Auditorium\n\nhttp://indico.cern.ch/
conferenceDisplay.py?confId=a033973
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033973
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gigabit Ethernet deployment at CERN\n
DTSTART;VALUE=DATE-TIME:19991015T080500Z
DTEND;VALUE=DATE-TIME:19991015T082000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033970@cern.ch
DESCRIPTION:Gigabit Ethernet is here. We have been looking at this technol
ogy \nsince 1997\, and most of the Computer centre is now connected to \nG
igabit Ethernet switches.\n\nThis seminar will present the new Ethernet Hi
erarchy\, the impressive evolution of switches and routers\, the current d
eployment status of Gigabit Ethernet for Central Data Recording\, PC farms
\, and Data Analysis\, as well the new Gigabit Ethernet Backbone.\n\nhttp:
//indico.cern.ch/conferenceDisplay.py?confId=a033970
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033970
END:VEVENT
BEGIN:VEVENT
SUMMARY:Electron cloud investigations\n
DTSTART;VALUE=DATE-TIME:19991111T131500Z
DTEND;VALUE=DATE-TIME:19991111T133000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034018@cern.ch
DESCRIPTION:The build-up of an electron cloud and beam-induced electron mu
ltipacting was first observed in a test chamber in the ISR at CERN in 1977
. In the positron rings of KEKb and PEP-II beauty factories\, pronounced p
ressure rises were observed earlier this year during machine commissioning
as the beam current exceeded a threshold. These \ndynamic pressure rises
are due to electron multipacting and/or ion-induced desorption. \nMost rec
ently in the SPS at CERN electron multipacting has been unambiguously obse
rved in the presence of LHC type beams. The initial LHC design studies ide
ntified electron multipacting as a potentially serious problem for the vac
uum system and it was recognised that detailed investigations of the pheno
menon would be required. Since 1996 extensive studies have been undertaken
to quantify and assess the detrimental effects of such an electron cloud
on the cryogenic vacuum system of the LHC. In this talk an overview of the
electron cloud key parameters\, related to the material properties of the
vacuum chamber wall\, will be identified together with examples of how su
ch parameters \nare quantified. The implications on the LHC beam screen de
sign of the predicted heat loads will be given. Laboratory based investiga
tions\, identifying possible remedies to avoid excessive heat loads and pr
essure rises due to electron bombardment\, will be discussed.\n\nhttp://in
dico.cern.ch/conferenceDisplay.py?confId=a034018
LOCATION:CERN
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034018
END:VEVENT
BEGIN:VEVENT
SUMMARY:JOINT LHC/SL SEMINAR:
Electron cloud simulations \n
DTSTART;VALUE=DATE-TIME:19991118T150000Z
DTEND;VALUE=DATE-TIME:19991118T153000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033437@cern.ch
DESCRIPTION:In the LHC beam pipe\, the emission of photoelectrons and seco
ndary electrons gives rise to a quasistationary electron cloud. The respon
se of this electron cloud to a transversely displaced bunch resembles a sh
ort-range wake field and can cause a fast beam instability. More important
ly\, if no care is taken\, the incident electrons induce a significant hea
t load on the LHC beam screen. They may also cause a pressure rise\, as re
cently observed in the SPS. \n\nThis talk describes our computer model of
the electron cloud build-up\, and presents preliminary simulation results
for the LHC and the SPS.Organiser(s): Werner Herr / SL & Ruediger Schmidt
/ LHC Note: * Tea and coffee will be served at 15:30 in front of the \nAud
itorium \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033437
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033437
END:VEVENT
BEGIN:VEVENT
SUMMARY:From SDH* to redundant Optical Networking\n
DTSTART;VALUE=DATE-TIME:19991119T100000Z
DTEND;VALUE=DATE-TIME:19991119T130000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033968@cern.ch
DESCRIPTION:Exploding bandwith requirements for data\, voice and video app
lications together with new technologies for all optical networks will dra
matically change the conventional networks in the near future. Direct conn
ections of IP routers via Wavelength Division Multiplexing (WDM) and Optic
al Switches are now possible.\n\nWe will present the different technologie
s which have led to Optical Networking and its possible applications at Ce
rn.Note: *SDH Synchronous Digital Hierarchy\n\n\nhttp://indico.cern.ch/con
ferenceDisplay.py?confId=a033968
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033968
END:VEVENT
BEGIN:VEVENT
SUMMARY:The LHC Power Converter Systems\n
DTSTART;VALUE=DATE-TIME:19991125T150000Z
DTEND;VALUE=DATE-TIME:19991125T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033974@cern.ch
DESCRIPTION:The talk will describe the SL-PO participation in the LHC proj
ect. The main ring magnet system in LHC poses new\, difficult requirements
on power conversion and high current measurement technology. \n\nNew powe
r converters are being developed in soft-commutated switch mode technolgy.
New current transducers for the 13 kA main magnets are being developed as
well as a complete calibration infrastructure to assure the very high pre
cision\, which approaches 10E-6. \n\nA new real-time converter remote cont
rol system is under development. The beam transfer will be powered mainly
by converters from LEP and SPS and use an updated version of MUGEF. The ta
lk will cover the principles\, the development work and review progress to
date.\n\nOrganiser(s): Werner Herr\, SL Division\n\nNote: Tea and coffee
will be served at 15:30 in front of the Auditorium\n\n\n\nhttp://indico.ce
rn.ch/conferenceDisplay.py?confId=a033974
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033974
END:VEVENT
BEGIN:VEVENT
SUMMARY:Status of the LEP Spectrometer Project
DTSTART;VALUE=DATE-TIME:19991130T150000Z
DTEND;VALUE=DATE-TIME:19991130T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033975@cern.ch
DESCRIPTION:At LEP I\, measurement of the beam energy was performed with h
igh accuracy by resonant depolarisation. At physics energies for LEP II\,
polarisation of the beams is not achievable and measurements of the total
bending field are used\, calibrated against resonant depolarisation over t
he range 41-60 GeV/beam. Uncertainties arise \nfrom regions of the field w
hich are not sampled adequately.\n\nThe LEP Spectrometer was proposed to g
ive a determination of beam energy for LEP II. The instrument consists of
a steel dipole flanked by beam position monitors (BPMs) which allow measur
ement of changes in the bend angle. The aim is to achieve a relative preci
sion of 1E-4 on the energy\, which requires knowledge of the integral magn
etic field to 3E-5 and 1 micron resolution from the BPMs. The commissionin
g of the Spectrometer has been ongoing through 1999. \n\nThe talk will out
line energy measurement at LEP\, the Spectrometer hardware and the charact
erisation of the individual subsystems. The current status of the data ana
lysis from the 1999 running will be reviewed. \n\nOrganiser(s): Werner Her
r\, SL Division\n* PLEASE NOTE UNUSUAL DAY !\n\n**Tea and coffee will be s
erved at 15:30 in front of the Auditorium.\n\nhttp://indico.cern.ch/confer
enceDisplay.py?confId=a033975
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033975
END:VEVENT
BEGIN:VEVENT
SUMMARY:Energy Calibration with Energy Loss Measurements\n
DTSTART;VALUE=DATE-TIME:19991209T150000Z
DTEND;VALUE=DATE-TIME:19991209T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033976@cern.ch
DESCRIPTION:The measurement of the W Boson mass at LEP2 requires a determi
nation of the beam energy with the highest possible accuracy.\nPresent sch
emes for energy calibration above the W+W- threshold of 80 GeV are based o
n extrapolations of resonant depolarization measurements to high energy. S
ince such extrapolations involve systematic uncertainties\, alternative me
thods have been studied which are based on measurements of the energy loss
due to synchrotron radiation. Because this energy loss increases with the
fourth power of energy\, observable sensitive to the energy loss per turn
can be used to determine the beam energy. \nThree different methods to me
asure the energy loss have been studied. The first technique is based on t
he analysis of electron positron difference orbits\, the second on measure
ments of the damping of horizontal coherent oscillations after an excitati
on and the last one on studies of the relation between synchrotron tune Qs
and total accelerating voltage. As a side product\, the analysis of the d
amping of coherent oscillations gives an opportunity to measure the horizo
ntal detuning with amplitude (anharmonicity) which is an important paramet
er for the understanding of the dynamic aperture of storage ring optics.\n
This talk will focus on the description of the different approaches to the
energy loss measurement and discuss advantages and disadvantages of the m
ethods. \n\nOrganiser(s): Werner Herr / SL DivisionNote: Tea and coffee wi
ll be served at 15:30 in front of the Auditorium \n\nhttp://indico.cern.ch
/conferenceDisplay.py?confId=a033976
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033976
END:VEVENT
BEGIN:VEVENT
SUMMARY:Study of CP violation with the experiment NA48\n
DTSTART;VALUE=DATE-TIME:20000127T150000Z
DTEND;VALUE=DATE-TIME:20000127T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033978@cern.ch
DESCRIPTION:Since its first observation 35 years ago\, CP violation has be
en measured so far only in the decays of neutral kaons. CP asymmetry is of
particular relevance because of its connection with the prevalence of mat
ter over antimatter in the universe\, and of its interpretation in and bey
ond the Standard Model. \n\nA new result obtained by the experiment NA48 i
s discussed together with some characteristics of the technique used.\n\nT
he seminar is intended for non-specialists.Organiser(s): Werner Herr / SL
DivisionNote: Tea and coffee will be served at 15.30 in front of the Audi
torium \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033978
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033978
END:VEVENT
BEGIN:VEVENT
SUMMARY:Conclusions from the workshop on S.L. Performance\, Chamonix X\n
DTSTART;VALUE=DATE-TIME:20000210T150000Z
DTEND;VALUE=DATE-TIME:20000210T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033979@cern.ch
DESCRIPTION:The 10th Performance Workshop was held from January 17\, till
January 21 in Chamonix\, France. It is the first workshop where the prepar
ation for the LHC played a major role. The first three days were devoted t
o discuss topics associated with the role of the SPS as injector \nfor the
LHC and the LHC itself. The fourth day with two sessions on LEP prepared
for running at highest energy in the final year. A summary of the conclusi
ons presented in the summing up session as well as important issues raised
at each of the sessions is presented \nin this seminar.Organiser(s): Wern
er Herr / SL DivisionNote: Tea and coffee will be served at 15:30 in front
of the Auditorium \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a
033979
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033979
END:VEVENT
BEGIN:VEVENT
SUMMARY:Coherent beam-beam modes in the LHC \n
DTSTART;VALUE=DATE-TIME:20000302T150000Z
DTEND;VALUE=DATE-TIME:20000302T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033980@cern.ch
DESCRIPTION:In colliding beam facilities where two counter rotating beams
repeatedly cross each other\, the electromagnetic fields of the two charge
distributions have strong effects on the particle dynamics. This interact
ion is known as the beam-beam force and is the most important non-linearit
y at high energy.\n\nThe beam-beam force can excite coherent modes of osci
llations in the \nbunches. Landau damping can potentially damp these oscil
lation modes. \n\nFor the LHC\, experimental\, analytical and tracking stu
dies foresee that the collision of two beams with equal tunes\, sizes and
current ratio will excite two coherent dipole modes whose frequencies lie
outside of the incoherent tune spread of the beam.\n\nThis implies the los
s of Landau damping of the coherent modes and may \nresult in instability
driven by any small impedance component of the \nvacuum chamber. \n\nThe p
hysics of these coherent modes and the mechanism of existence or \nlack of
Landau damping are discussed and explained in detail. The \nimplications
for the operation of the LHC and possible cures to restore Landau damping
are presented. The side effects and further consequences of the cures are
evaluated and discussed. This seminar is intended for non-specialists.\n\n
Organiser(s): Werner Herr / SL DivisionNote: Tea and coffee will be served
at 15:30 in front of the Auditorium\n\nhttp://indico.cern.ch/conferenceDi
splay.py?confId=a033980
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033980
END:VEVENT
BEGIN:VEVENT
SUMMARY:Applications of a multiturn SPS orbit acquisition system
DTSTART;VALUE=DATE-TIME:20000323T150000Z
DTEND;VALUE=DATE-TIME:20000323T151500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033981@cern.ch
DESCRIPTION:The SPS orbit acquisition system MOPOS can acquire beam positi
ons \nfrom more than 200 beam position monitors (BPMs) around the SPS ring
\nduring 1000 or more consecutive turns. \n\nTwo applications have been d
eveloped during 1999\, to make it possible for the user to retrieve the mu
ltiturn data\, and to assist in the analysis and in the graphical presenta
tion of the data. \n\nThese applications (Multiturn Measurement and Multit
urn Analysis) are \nnow available in the SPS Control Room. \n\nThe multitu
rn system can be used to measure coherent betatron oscillations of the SPS
beam\, for instance after a kick given by a kicker magnet. \n\nBy examini
ng the beam behaviour at the different BPMs it is possible to obtain vario
us kinds of information about the SPS accelerator. \n\nFor instance\, by l
ooking at the amplitudes and phases of the beam \noscillations at each BPM
\, one can find out errors in the lattice functions\, or investigate the d
istribution of impedance around the SPS ring. The system can also be used
to produce phase space plots and to locate beam losses. \n\nResults of suc
h measurements performed at the SPS are presented. Organiser(s): Werner He
rr / SL Division Note: Tea and coffee will be served at 15:30 in front of
the Auditorium \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a0339
81
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033981
END:VEVENT
BEGIN:VEVENT
SUMMARY:Abnormal operating conditions of the LHC beam dump \n
DTSTART;VALUE=DATE-TIME:20000406T140000Z
DTEND;VALUE=DATE-TIME:20000406T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033977@cern.ch
DESCRIPTION:The design study of the LHC main beam dump has been preliminar
ily substantiated by energy deposition simulations and heat transfer analy
ses. The present seminar is devoted to the abnormal operating conditions i
nduced by a malfunction of the beam diluters. A general \napproach to the
analysis of off-normal operation is presented\, which is derived from stan
dard design norms adopted in the nuclear industry. \n\nAttention is focuse
d mainly on the carbon absorber core\, which is longitudinally split into
segments of different density in order to better distribute the deposited
energy. The maximum energy density it absorbs decreases by at least 33% co
mpared to a uniform standard density carbon core. This structure may susta
in any partial sweep failure without major damage\, up to the ultimate bea
m intensity and energy. To minimise the risks inherent in a fully unwept b
eam\, a sacrificial graphite mandrel will be placed on the core axis\, sur
rounded by a thick high strength carbon-carbon composite tube. With this a
rrangement\, structural damage will be avoided in the event of total sweep
failure\, during LHC commissioning and probably up to \nnominal beam inte
nsity. However\, severe damage may still occur at the ultimate beam intens
ity\; in this respect\, further analyses of mass-transport phenomena are r
equired. Potential long-term improvements are considered.Organiser(s): Wer
ner Herr / SL DivisionNote: Tea and coffee will be served at 15:30 in fron
t of the Auditorium \n\n\n\nhttp://indico.cern.ch/conferenceDisplay.py?con
fId=a033977
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033977
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Energy Amplifier Monte Carlo Code Package (EA-MC) - A new appr
oach to the design of \naccelerator-driven systems
DTSTART;VALUE=DATE-TIME:20000420T140000Z
DTEND;VALUE=DATE-TIME:20000420T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033987@cern.ch
DESCRIPTION:The neutronic calculations presented in this paper are a resul
t of a state-of-the-art computer simulation code package developed by Prof
. C. Rubbia\, specifically targeted to the simulation of the Energy \nAmpl
ifier. Both high-energy particle interactions and low energy neutron trans
port are treated with a sophisticated method based on a full Monte Carlo s
imulation\, together with modern nuclear data \nlibraries. The code is des
igned to run both on parallel and scalar computers. A series of experiment
s carried out at the CERN PS confirmed (i) that the spallation process is
correctly predicted and (ii) validated the reliability of the predictions
of the integral neutronic parameters of the Energy Amplifier Demonstration
Facility.Organiser(s): Werner Herr / SL DivisionNote: Tea and coffee will
be served at 15:30 in front of the Auditorium \n\nhttp://indico.cern.ch/c
onferenceDisplay.py?confId=a033987
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033987
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Neutron Time Of Flight (n-TOF) facility\n
DTSTART;VALUE=DATE-TIME:20000504T140000Z
DTEND;VALUE=DATE-TIME:20000504T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033983@cern.ch
DESCRIPTION:The recent developments in Accelerator Driven Systems (ADS) ha
s revived the interest for better knowledge of neutron cross sections. The
existing data come from compilations of various experiments\, often not i
n perfect agreement\, which are mostly performed in association with a neu
tron time of flight (TOF) measurement. \nThis technique is limited by the
strength of the primary neutron source. The n_TOF facility at CERN is a so
urce of neutrons produced by spallation of 20 GeV/c protons onto a solid l
ead target. The outstanding characteristics of this facility (very high in
tensity\, 200 m flight path\, wide spectral function) make it an useful to
ol to study with excellent resolution\, neutron cross sections of almost a
ny \nelement\, using targets of modest mass.\n\nOrganiser(s): Werner Herr
/ SL Division\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033983
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033983
END:VEVENT
BEGIN:VEVENT
SUMMARY:LHC Project Management\n
DTSTART;VALUE=DATE-TIME:20000511T140000Z
DTEND;VALUE=DATE-TIME:20000511T143000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033984@cern.ch
DESCRIPTION:This seminar will discuss the project management strategy empl
oyed to meet the unprecedented challenges of designing\, constructing\, in
stalling and operating the superconducting LHC. The LHC is different from
the other accelerators built at CERN\, as all its systems are integrated a
nd interact with each other\, and some important subsystems are provided b
y outside collaborating Institutes. A major co-ordination effort and unpre
cedented quality requirements will have to be supported by an Engineering
Data Management System and a Quality Assurance Plan. Configuration managem
ent tools for the LHC project will also be shown.\n\nThis seminar is a rep
etition of the LHC Project Seminar of 13th January.Organiser(s): Werner He
rr / SL DivisionNote: Tea and coffee will be served at 15:30 in front of t
he Auditorium \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a03398
4
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033984
END:VEVENT
BEGIN:VEVENT
SUMMARY:The TESLA Klystron and Modulator\n
DTSTART;VALUE=DATE-TIME:20000518T140000Z
DTEND;VALUE=DATE-TIME:20000518T143000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033985@cern.ch
DESCRIPTION:The Tesla Linear Collider is a 500 to 800GeV centre of mass li
near collider with included FEL facility. In order to achieve accelerating
gradients up to 35MV/m at 1.3GHz in the superconducting cavities 1200 pul
se klystrons and high voltage modulators are required. Each \nklystron has
to generate an RF power up to 10MW at a pulse duration of 1.38ms and a re
petition rate of 5Hz. For the FEL part of the linac 10Hz repetition rate i
s required. In order to achieve high power efficiency the multibeam klystr
on was chosen as RF power source. A prototype developed and built by Thoms
on TE was already tested at the manufacturers factory up to pulse duration
of 0.5ms and a repetition rate of 30Hz. A test at full pulse width will s
tart in May 2000 \nat DESY. High voltage modulators are required to pulse
the klyston cathodes. The multibeam klystron needs rectangular high voltag
e pulses up to 117kV at currents up to 139A. The flat top pulse duration m
ust be 1.4ms and the repetition rate 10Hz. Modulators based on the bouncer
\nprinciple produce these pulses. Three modulators are in operation at th
e Tesla test facility at DESY. They supply 5MW single beam klystrons with
pulses of similar voltage and current as for the multibeam klystron. Two o
f them can also be used for the operation together with 10MW multibeam kly
strons. In this talk the parameters and the layout of the modulators and k
lystrons for the Tesla linear collider will be presented. It will be repor
ted on the operation experience and \nfuture plans with the modulators and
klystrons at the Tesla test facility at DESY. Test results will be shown.
Organiser(s): Werner Herr / SL DivisionNote: Tea and coffee will be serv
ed at 15:30 in front of the Auditorium.\n\nhttp://indico.cern.ch/conferenc
eDisplay.py?confId=a033985
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033985
END:VEVENT
BEGIN:VEVENT
SUMMARY:Review of R&D needs for a Neutrino Factory\n
DTSTART;VALUE=DATE-TIME:20000608T140000Z
DTEND;VALUE=DATE-TIME:20000608T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033988@cern.ch
DESCRIPTION:The R&D needs for a neutrino factory\, based on a muon storage
ring\, are presented. Such a neutrino factory consists of several modules
\, that all must be developed\, namely: An intense proton source\, a pion
production target and collection system\, ionisation cooling\, acceleratio
n and storage. R&D on these modules will be discussed in terms of theory a
nd simulation\, engineering prototypes\, and experiments in particle beams
.Organiser(s): Werner HERR / SL DivisionNote: Tea and coffee will be serve
d at 15:30 in front of the Auditorium\n\nhttp://indico.cern.ch/conferenceD
isplay.py?confId=a033988
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033988
END:VEVENT
BEGIN:VEVENT
SUMMARY:An almost deterministic automated matching algorithm and prelimina
ry tests at Jefferson Lab
DTSTART;VALUE=DATE-TIME:20000615T140000Z
DTEND;VALUE=DATE-TIME:20000615T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033982@cern.ch
DESCRIPTION:An algorithm developed recently for performing on-line betatro
n matching is presented. The algorithm takes into account the full order b
ehaviour of matching quadrupoles and their compounded effects\, thus affor
ding global solutions to the matching problem in an almost deterministic m
anner. Also presented is the scheme for performing high precision transfer
matrix measurements\, an integral part of this algorithm. Results from bo
th simulation and preliminary on-line testing at Jefferson Lab (with very
encouraging outcome) as well as future path and possibilities of incorpora
tion into the CERN ABS platform will be discussed.Organiser(s): Werner Her
r / SL DivisionNote: Tea and coffee will be served at 15:30 in front of th
e Auditorium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033982
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033982
END:VEVENT
BEGIN:VEVENT
SUMMARY:Oral Contributions to the European Particle Accelerator Conference
\n2000
DTSTART;VALUE=DATE-TIME:20000622T130000Z
DTEND;VALUE=DATE-TIME:20000622T143000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033986@cern.ch
DESCRIPTION:The oral contributions of the SL division to the European Part
icle \nAccelerator Conference in Vienna 2000 will be presented to the bene
fit of those who cannot attend the conference. This includes contributed a
s well as invited papers.Organiser(s): Werner Herr / SL DivisionNote: PLEA
SE NOTE UNUSUAL TIME !\n\nhttp://indico.cern.ch/conferenceDisplay.py?confI
d=a033986
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033986
END:VEVENT
BEGIN:VEVENT
SUMMARY:Signal processing for Beam Position Monitors\n
DTSTART;VALUE=DATE-TIME:20000706T140000Z
DTEND;VALUE=DATE-TIME:20000706T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033989@cern.ch
DESCRIPTION:At the first sight\, the problem to determine the beam positio
n from the ratio of the induced charges of the opposite electrodes of a be
am monitor seems trivial\, but up to now no unique solution has been found
that fits to the various demands of all particle accelerators. The purpos
e of this paper is to help 'instrumentalist' to choose the best processing
system for their particular application\, depending on the machine size\,
the input dynamic range\, the required resolution and the acquisition spe
ed. After a general introduction and an analysis of the electrical signals
to be treated (frequency and time domain)\, the definition of the electro
nic specifications will be reviewed. The tutorial will present the differe
nt families in which the processing systems can be grouped. A general desc
ription of the operating principles with relative advantages and disadvant
ages for the most employed processing systems is presented. A special acce
nt will be put in the most recent technology development based on telecomm
unication circuitry. In conclusion\, an application example will show how
to choose the correct solution for a particular case.Organiser(s): Werner
Herr / SL DivisionNote: Tea and coffee will be served at 15:30 in front of
the Auditorium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a0339
89
LOCATION:CERN
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033989
END:VEVENT
BEGIN:VEVENT
SUMMARY:Neutrino Physics at Gran Sasso\n
DTSTART;VALUE=DATE-TIME:20000713T140000Z
DTEND;VALUE=DATE-TIME:20000713T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033990@cern.ch
DESCRIPTION:Organiser(s): Werner Herr / SL DivisionNote: Tea and coffee wi
ll be served at 15:30 in front of the Auditorium\n\nhttp://indico.cern.ch/
conferenceDisplay.py?confId=a033990
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033990
END:VEVENT
BEGIN:VEVENT
SUMMARY:Neutrino oscillations and perspectives for the CNGS
DTSTART;VALUE=DATE-TIME:20000928T140000Z
DTEND;VALUE=DATE-TIME:20000928T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033991@cern.ch
DESCRIPTION:The seminar will illustrate the mechanism of neutrino oscillat
ion at a non-specialist level and review the present experimental evidence
. Attention will be focused on the possibilities offered by the CNGS and o
n the OPERA experiment in particular\, concluding with a brief outlook on
the future of this line of research.Organiser(s): Werner Herr / SL Divisio
nNote: Tea and coffee will be served at 15:30 in front of the Auditorium\n
\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033991
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033991
END:VEVENT
BEGIN:VEVENT
SUMMARY:SL Contribution to CLIC Studies
DTSTART;VALUE=DATE-TIME:20001026T140000Z
DTEND;VALUE=DATE-TIME:20001026T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033992@cern.ch
DESCRIPTION:Since 1999\, a small team in the SL division participates in t
he CERN study of a future electron-positron linear collider\, CLIC\, opera
ting at 3 TeV centre-of-mass energy. Our mandate comprises (1) the design
of damping rings producing beams with the required ultra-low emittances\,
two or three orders of magnitude smaller than at the SLC\; (2) the design
of a beam delivery system consisting of final focus\, collimation\, and be
am exit line\, including simulations of detector background and system per
formance\; and (3) an assessment of the extreme quantum regime during the
beam-beam collision. In this talk\, I describe major design challenges\, r
esults achieved so far\, and our plan for the future. Within the SL mandat
e there are many interesting areas to which other groups in SL might contr
ibute. Possible topics will be mentioned. Organiser(s): Werner Herr\, SL D
ivision\; \nRuediger Schmidt\, LHC DivisionNote: Tea and coffee will be se
rved at 15:30 in front of the Auditorium \n\nhttp://indico.cern.ch/confere
nceDisplay.py?confId=a033992
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033992
END:VEVENT
BEGIN:VEVENT
SUMMARY:Accelerator Physics Studies for the Luminosity Upgrade of HERA
DTSTART;VALUE=DATE-TIME:20010111T150000Z
DTEND;VALUE=DATE-TIME:20010111T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033993@cern.ch
DESCRIPTION:DESY is currently working on decreasing the size of the proton
beam and \nof the electron beam in HERA at the collider experiments H1 an
d ZEUS \nby moving quadrupoles closer to the interaction points and by inc
reasing their strength. To match the smaller proton beam size\, the horizo
ntal electron emittance has to be decreased by changing the damping partit
ion numbers and by an increase in the phase advance per FODO cell from cur
rently 60 degrees to 72 degrees. Together with reaching design currents\,
these measures should increase the luminosity of HERA from the current max
imum value of 2 to 7.6 10**31 cm**-2**-1.\n\nExperimental tests have been
carried out to find whether the changes in \nthe electron optics will be p
roblematic for lifetime\, luminosity\, dynamic aperture\, polarization\, o
r the electron beam distribution. Furthermore the influence of the increas
ed beam beam force on the proton beam and on the electron beam has been in
vestigated experimentally.Organiser(s): Werner Herr\, SL DivisionNote: Tea
and coffee will be served at 15:30 in front of the Auditorium.\n\nInforma
tion: http://www.cern.ch/CERN/Divisions/SL/news/news.html\n\n\nhttp://indi
co.cern.ch/conferenceDisplay.py?confId=a033993
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033993
END:VEVENT
BEGIN:VEVENT
SUMMARY:Colliding Nanometer-Size Beams in CLIC Using Modern Stabilization
Technology
DTSTART;VALUE=DATE-TIME:20010503T140000Z
DTEND;VALUE=DATE-TIME:20010503T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033995@cern.ch
DESCRIPTION:The spot size in the interaction points of linear colliders ca
n be reduced to nanometer values\, because the usual beam-beam limit in ci
rcular colliders does not apply for single passage collisions. The design
values for the vertical spot size range from 5 nm for the 500 GeV TESLA de
sign to 1 nm for the 3 TeV CERN study of a Compact LInear Collider (CLIC).
Colliding nanometer-size beams imposes strict tolerances on the accelerat
or\, especially on the transverse vibrations of magnetic elements. An inte
r-divisional study has recently been set-up in order to demonstrate the re
quired stability and to predict the time-dependent luminosity for CLIC.\nT
he study aims in particular at applying state-of-the-art stabilization tec
hnology to particle accelerators. Active and passive stabilization technol
ogy is subject of intense industrial research and development.\nApplicatio
ns include chip lithography\, advanced microscopy (TEM)\, gravitational wa
ve detectors\, satellites and nano-technology. A laboratory is being set-u
p at CERN with the goal to test the use of this technology for future part
icle accelerators. The set-up and the goals of the CLIC stability study wi
ll be presented and discussed in detail.Organiser(s): Werner Herr\, SL Div
isionNote: * Tea and coffee will be served at 15:30 in front of the Audito
rium\n\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033995
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033995
END:VEVENT
BEGIN:VEVENT
SUMMARY:Summary of the 2nd LHC Controls Project Seminar
DTSTART;VALUE=DATE-TIME:20010510T140000Z
DTEND;VALUE=DATE-TIME:20010510T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033996@cern.ch
DESCRIPTION:The 2nd LHC-CP seminar was held at CERN on 5/6 April and attra
cted about 90 participants. The aims of the workshop were to review the ac
tivities of the first year of the project\, identify any hot topics and id
entify the goals for the next 12 months.\nAfter a reminder about the origi
ns of the project a summary of the\nworkshop is presented and the resultin
g issues are discussed.\nInformation: http://www.cern.ch/CERN/Divisions/SL
/news/news.html\nOrganiser(s): Werner Herr\, SL DivisionNote: * Tea and co
ffee will be served at 15:30 in front of the Auditorium\n\n\nhttp://indico
.cern.ch/conferenceDisplay.py?confId=a033996
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033996
END:VEVENT
BEGIN:VEVENT
SUMMARY:Warm magnets for the LHC Project
DTSTART;VALUE=DATE-TIME:20010517T140000Z
DTEND;VALUE=DATE-TIME:20010517T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033994@cern.ch
DESCRIPTION:Warm (resistive) magnets\, instead of s.c. one's\, have been c
hosen for several applications in the LHC project either for economy reaso
ns or for their high tolerance against energy deposition by high-energy pa
rticles. For the TI2 and TI8 injection lines\, transferring 450 GeV/c prot
ons from the SPS to the LHC\, an evaluation of the total costs of construc
tion and operation led to a clear advantage of warm magnets\, as the lines
will be used only during short periods per day for filling the LHC. For T
I2 and TI8 360 main dipole\, 180 main quadrupole and 98 correction dipole
magnets are being built and a large number of other magnets has been recup
erated from closed down installations. In total 45 steel septum magnets ar
e built for the injection into and extraction from the LHC for the beam ab
ort system. For the LHC main ring warm magnets have been selected in sever
al regions only for their superior capability to accept high particle back
ground. For the beam cleaning insertions IR3 and IR7 some 80 beam separati
on dipoles\, quadrupoles \nand correction dipoles are needed. Around the L
HC experiments some 30 separation and correction magnets will be installed
\, the latter to compensate for the effect of the huge spectrometer magnet
s on the circulating beam. Magnet design\, fabrication and magnet field me
asurement issues are discussed.Organiser(s): Werner Herr\, SL DivisionNote
: Tea and coffee will be served at 15:30 in front of the Auditorium\n\nhtt
p://indico.cern.ch/conferenceDisplay.py?confId=a033994
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033994
END:VEVENT
BEGIN:VEVENT
SUMMARY:JOINT LHC/SL SEMINAR:
Coherent beam-beam effects in the LHC
DTSTART;VALUE=DATE-TIME:20010607T140000Z
DTEND;VALUE=DATE-TIME:20010607T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033438@cern.ch
DESCRIPTION:The beam-beam interaction is one of the most limiting factors
in the LHC. Since both LHC beams have equal intensities\, coherent beam-be
am effects can become important. Significant progress has been made in rec
ent years in understanding these effects and their consequences for the LH
C. The concept of coherent beam-beam modes is introduced and the importanc
e of Landau damping for their supression is discussed. A survey of the pre
sent studies is made with emphasis on the effects important for the LHC an
d recently developped tools for their evaluation are presented.Organiser(s
): Werner Herr (SL) and Ruediger Schmidt (AC)Note: Tea and coffee will be
served at 15:30 in front of the Auditorium\n\nhttp://indico.cern.ch/confer
enceDisplay.py?confId=a033438
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033438
END:VEVENT
BEGIN:VEVENT
SUMMARY:Operational scenarios for the LHC
DTSTART;VALUE=DATE-TIME:20010614T140000Z
DTEND;VALUE=DATE-TIME:20010614T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033997@cern.ch
DESCRIPTION:The operation of the LHC will present some real challenges. It
is important at this stage to anticipate how the machine will be run\, an
d attempt to ensure that the functionality and integration that will be of
fered by controls\, beam instrumentation\, accelerator devices and other s
ystems will allow effective and safe exploitation. A breakdown of the main
operational phases is presented and the implications discussed. Areas req
uiring further detailed study are highlighted.\n\nOrganiser(s): Werner Her
r (SL)Note: Tea and coffee will be served at 15:30 in front of the Auditor
ium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033997
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033997
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Monte Carlo code FLUKA and its applications
DTSTART;VALUE=DATE-TIME:20010628T140000Z
DTEND;VALUE=DATE-TIME:20010628T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033998@cern.ch
DESCRIPTION:FLUKA is a particle transport and interaction code capable of
handling hadronic and electromagnetic showers up to very high energies (10
0 TeV). It is widely used for shielding and target design\, for particle p
roduction and activation studies\, for dosimetry\, for cosmic ray showers
and detector response. An overview of the code and a general description o
f its physical models are presented\, with emphasis on the comparisons wit
h experimental data. The FLUKA capabilities are then illustrated through a
few representative applications.Organiser(s): Werner Herr (SL)Note: Tea a
nd coffee will be served at 15:30 in front of the Auditorium\n\nhttp://ind
ico.cern.ch/conferenceDisplay.py?confId=a033998
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033998
END:VEVENT
BEGIN:VEVENT
SUMMARY:JOINT LHC/SL SEMINAR:
HERA - Status and future plans
DTSTART;VALUE=DATE-TIME:20010709T121500Z
DTEND;VALUE=DATE-TIME:20010709T131500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033439@cern.ch
DESCRIPTION:Organiser(s): Ruediger Schmidt / AC and Werner Herr / SL \n\nh
ttp://indico.cern.ch/conferenceDisplay.py?confId=a033439
LOCATION:LHC Auditorium 30-7-
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033439
END:VEVENT
BEGIN:VEVENT
SUMMARY:CNGS - Status Report
DTSTART;VALUE=DATE-TIME:20010712T140000Z
DTEND;VALUE=DATE-TIME:20010712T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034000@cern.ch
DESCRIPTION:The CERN Neutrino to Gran Sasso Facility (CNGS) was approved b
y Council in December 1999. Civil engineering started in September 2000. T
his status report will summarise\, without entering into technical details
\, the progress of CNGS. Changes to the initial design (1998) are describe
d and current 'hot topics' mentioned.\n\nOrganiser(s): Werner Herr / SLNot
e: Tea and coffee will be served at 15:30 in front of the Auditorium \n\nh
ttp://indico.cern.ch/conferenceDisplay.py?confId=a034000
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034000
END:VEVENT
BEGIN:VEVENT
SUMMARY:JOINT LHC/SL SEMINAR:
HERA - Status and future plans
DTSTART;VALUE=DATE-TIME:20010719T121500Z
DTEND;VALUE=DATE-TIME:20010719T131500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033440@cern.ch
DESCRIPTION:The HERA straight sections have been rebuilt to obtain smaller
beta functions at the IP to increase the luminosity by a factor 3-5. The
new IR is based on superconducting quadrupole-separator magnets which have
been integrated in the ZEUS and H1 detectors respectively. These have bee
n designed and built by BNL. In total\, about 500 m of new accelerator lat
tice has been completely rebuilt with new magnets and vacuum systems which
also include two spin rotator pairs. Many beam dynamic features of the ne
w lattice have been tested in the old IR configuration. Recommissioning wi
ll start in July 2001. A fairly detailed recommissioning plan has been wor
ked and will be discussed.\n\nhttp://indico.cern.ch/conferenceDisplay.py?c
onfId=a033440
LOCATION:CERN 30-7-
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033440
END:VEVENT
BEGIN:VEVENT
SUMMARY:The LHC Injection Process: Simulation of Injection Scenario(s)\n
DTSTART;VALUE=DATE-TIME:20010927T140000Z
DTEND;VALUE=DATE-TIME:20010927T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034001@cern.ch
DESCRIPTION:The present longitudinal SPS to LHC injection scenario has bee
n developed in several steps. First\, different principal scenarios were s
tudied with a simple program\, observing the longitudinal bunch phase spac
e representation but assuming an ideal inflexible RF system\; capture with
a 200 MHz system revealed necessary to avoid unacceptable beam losses. In
reality\, due to heavy beam loading in LHC\, beam and RF are intimately l
inked as a complex system\, the details of the RF system and its loops pla
ying a decisive role. Therefore a program was developed to simulate the in
jection with a real RF system. In a first approach bunches\, loading the R
F cavities\, were assumed point like to study the RF system behavior. In t
he latest version also bunches in full phase space representation can be o
bserved together with the real RF system. Some introductory remarks on lon
gitudinal beam dynamics will be given and the chain of developments toward
s the presently foreseen scenario will be revealed. Several movies will un
derline the dynamics of the process.\n\n\nOrganiser(s): Werner Herr / SL D
ivisionNote: Tea and coffee will be served at 15:30 in front of the Audito
rium \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034001
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034001
END:VEVENT
BEGIN:VEVENT
SUMMARY:CNGS neutrino beam studies
DTSTART;VALUE=DATE-TIME:20011011T140000Z
DTEND;VALUE=DATE-TIME:20011011T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a033999@cern.ch
DESCRIPTION:The goal of the CNGS (CERN Neutrinos to Gran Sasso) project is
to \ndetect mu-neutrino to tau-neutrino oscillation over a long base line
(732 km) through the appearance of tau-neutrino in a pure mu-neutrino bea
m. In this presentation the process of optimization which led to the\npres
ent design of the mu-neutrino beam\, and fast simulation tools \nthat have
been developed\, will be summarized. The effects of misalignments of the
beam-line elements on the mu-neutrino (and tau-neutrino) intensity at Gran
Sasso will be described. Finally the proposed muon monitoring system\, lo
cated after the CNGS beam dump\, which should be able to detect and contro
l these effects\, will be discussed.Organiser(s): Werner Herr / SL Divisio
nNote: Tea and coffee will be served at 15:30 in front of the Auditorium\n
\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a033999
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a033999
END:VEVENT
BEGIN:VEVENT
SUMMARY:Development of a 40MHz gas ionization detector for optimization of
luminosity in LHC
DTSTART;VALUE=DATE-TIME:20011018T121500Z
DTEND;VALUE=DATE-TIME:20011018T131500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034002@cern.ch
DESCRIPTION:A fast\, radiation hard\, pressurized\, multi-gap ionization c
hamber interfaced to a low noise charge sensitive preamplifier is being de
veloped for use in optimizing the luminosity of the LHC. These detectors a
re designed to be installed in the zero degree neutral particle and the fr
ont quadrupole absorbers of insertion regions 1 and 5. They could be used
in a feedback system with orbit correctors to keep the beams in optimum co
llision conditions. Such a system provides many interesting challenges in
ionization chamber design and the application of low noise fast electronic
s. Developmental devices have been tested in the SPS H4 beamline using sin
gle 300-450 GeV protons to simulate hadron showers produced by collision p
roducts of pp interactions in the LHC. The data provide convincing evidenc
e that the luminosity of the LHC can be measured on a bunch by bunch basis
at 40MHz over the entire range of luminosity envisioned for the LHC. The
design principles\, simulations and experimental results will be described
.Organiser(s): Werner Herr / SL DivisionNote: * PLEASE NOTE UNUSUAL TIME !
* \n\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034002
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034002
END:VEVENT
BEGIN:VEVENT
SUMMARY:Beam-based measurement of the non-linearity of the RHIC Low-beta q
uadrupole magnetic field
DTSTART;VALUE=DATE-TIME:20011108T131500Z
DTEND;VALUE=DATE-TIME:20011108T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034019@cern.ch
DESCRIPTION:In both RHIC and LHC\, the low-beta quadrupole magnetic field
is foreseen to require correction up to the dodecapole order. The best str
ategy to set the multipole correctors is to use beam diagnostics. The meth
od tested at RHIC relies on the measurement of the feed-down of higher-ord
er perturbations to the closed orbit and betatron tune orders. I will summ
arize in an informal talk the principle of the method\, the experimental r
esults obtained a few weeks ago (amongst which the measurement of a dodeca
pole field) and their estimated accuracy. The technical measurement issues
which can be relevant to LHC will be analysed.\n\nhttp://indico.cern.ch/c
onferenceDisplay.py?confId=a034019
LOCATION:CERN 30-7-
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034019
END:VEVENT
BEGIN:VEVENT
SUMMARY:Status of KEKB
DTSTART;VALUE=DATE-TIME:20011114T150000Z
DTEND;VALUE=DATE-TIME:20011114T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034003@cern.ch
DESCRIPTION:The performance of KEKB has been improved quickly in 2001 both
at peak and integrated luminosity. The peak luminosity reached 5.17 x 103
3cm-2s-1 and the maximum integrated luminosity per day amounted to 244/pb.
BELLE had accumulated 36.2/fb by the end of October 2001. This improvemen
t of performance culminated in the announcement of the CP-violation at bot
tom quark sector by BELLE in the Lepton-Photon Conference in Rome in July
2001. After a brief introduction of the KEKB accelerator complex and its h
istory\, I will talk how we have tackled problems such as the Electron-Clo
ud Instability that limited the luminosity.Organiser(s): Werner Herr / SL
DivisionNote: * PLEASE NOTE UNUSUAL DAY and PLACE ! *\n\n\nhttp://indico.c
ern.ch/conferenceDisplay.py?confId=a034003
LOCATION:CERN - LHC Auditorium 30-7-
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034003
END:VEVENT
BEGIN:VEVENT
SUMMARY:
Effect of the recent SPS impedance reduction on sing
le bunch s
DTSTART;VALUE=DATE-TIME:20011122T150000Z
DTEND;VALUE=DATE-TIME:20011122T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a035119@cern.ch
DESCRIPTION:The longitudinal single bunch (microwave) instability of the p
roton beam in the SPS has a long history. Already observed for the first t
ime in 1977\, it became an important issue for the high intensity and high
quality beam required for LHC. The main sources of impedance causing this
instability were found in 1996 using a new method based on measurements o
f the spectrum of unstable single bunches. During the last shutdown the ma
jor part of the impedance reduction programme was completed. In this talk
recent beam measurements are compared with previous results. Data obtained
below transition energy is also presented.Organiser(s): Werner Herr / SL
DivisionNote: * Tea and coffee will be served at 15:30 in front of the \nA
uditorium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a035119
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a035119
END:VEVENT
BEGIN:VEVENT
SUMMARY:Effect of the recent SPS impedance reduction on single bunch stabi
lity \n
DTSTART;VALUE=DATE-TIME:20011129T150000Z
DTEND;VALUE=DATE-TIME:20011129T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034005@cern.ch
DESCRIPTION:The longitudinal single bunch (microwave) instability of the p
roton beam in the SPS has a long history. Already observed for the first t
ime in 1977\, it became an important issue for the high intensity and high
quality beam required for LHC. The main sources of impedance causing this
instability were found in 1996 using a new method based on measurements o
f the spectrum of unstable single bunches. During the last shutdown the ma
jor part of the impedance reduction programme was completed. In this talk
recent beam measurements are compared with previous results. Data obtained
below transition energy is also presented.Organiser(s): Werner Herr / SL
DivisionNote: Tea and coffee will be served at 15:30 in front of the Audit
orium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034005
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034005
END:VEVENT
BEGIN:VEVENT
SUMMARY:Electron Cloud Simulations
DTSTART;VALUE=DATE-TIME:20011206T150000Z
DTEND;VALUE=DATE-TIME:20011206T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034006@cern.ch
DESCRIPTION:Since the vacuum chamber designs are optimized and the impedan
ces reduced by orders of magnitude compared with previous accelerators\, t
he electron cloud has become an issue which might seriously limit the perf
ormance of future (and existing) proton or positron machines. At CERN we p
resently perform two types of electron cloud simulations. The first addres
ses the build up of the electron cloud during the passage of a bunch train
\, the second concentrates on the single bunch instability induced by thes
e electrons. I describe the essential ingredients and the underlying physi
cs models for these simulations. I then present example results\, such as
the cloud build up in CERN SPS\, the heat load in the LHC arcs and the clo
ud build up in its experimental areas\, the electron densities in the damp
ing rings of future colliders\, the synergy between electron cloud\, regul
ar impedance and space charge\, transverse and longitudinal short range wa
ke fields in the CERN SPS.\nOrganiser(s): Werner Herr / SL DivisionNote: T
ea and coffee will be served at 15:30 in front of the Auditorium\n\nhttp:/
/indico.cern.ch/conferenceDisplay.py?confId=a034006
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034006
END:VEVENT
BEGIN:VEVENT
SUMMARY:The MAD-X project
DTSTART;VALUE=DATE-TIME:20020207T150000Z
DTEND;VALUE=DATE-TIME:20020207T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034007@cern.ch
DESCRIPTION:The development of MAD8 has been suspended for many years. At
the start of 2001 it was decided to revive it and put it into a more maint
ainable form since it is needed for the LHC during design and operation. I
n particular\, the home grown dynamic data management in Fortran77 limits
further extensions\, and is not guaranteed to survive for another ten year
s. In fact\, MAD-X has been originally planned to be a copy of MAD8 with a
more modern data management. The data structures that hold the informatio
n about the accelerator\, and the interfaces to the modules are written in
C which provides the dynamic data structures needed. Contrary to MAD8\, t
he MAD-X modules are designed as truly independent entities\, much simpler
and therefore better maintainable. The development of these modules is sp
read among several accelerator physicists.Tea and coffee will be served at
15:30 in front of the Auditorium\nOrganiser(s): Werner Herr / SL Division
\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034007
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034007
END:VEVENT
BEGIN:VEVENT
SUMMARY:Simulations of the LHC Dipole Field Errors and their Correction Sy
stems
DTSTART;VALUE=DATE-TIME:20020221T150000Z
DTEND;VALUE=DATE-TIME:20020221T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034008@cern.ch
DESCRIPTION:The dynamic aperture (DA) of the LHC is defined as the maximum
initial particle amplitude which is still contained within a given bounda
ry (vacuum chamber) for a given number of turns. For the LHC the DA at inj
ection is dominated by the field error contributions from the main dipole
magnets and their correction circuit powering. The DA of the LHC is affect
ed by a partial or total failure of these correction systems. A study of t
hese failure scenarios is shown and a method for setting part of these cor
rection systems is presented. The seminar concludes with a presentation of
preliminary new code for simulating the time dependent field errors of th
e magnets and provides an outlook on future studies.Organiser(s): Werner H
err / SL DivisionNote: Tea and coffee will be served at 15:30 in front of
the Auditorium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a03400
8
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034008
END:VEVENT
BEGIN:VEVENT
SUMMARY:Is it possible to increase the proton intensity for CNGS by a fact
or 2 or 3? \n
DTSTART;VALUE=DATE-TIME:20020321T150000Z
DTEND;VALUE=DATE-TIME:20020321T160000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034009@cern.ch
DESCRIPTION:The maximum proton flux foreseen for CNGS (in dedicated mode)
is 0.8 E13 p/s. Possible methods of increasing this value will be presente
d and discussed\; firstly pointing out the main problems concerning high i
ntensity beams and secondly by proposing possible solutions. Some of these
are at present theoretically and experimentally under study.Organiser(s):
Werner Herr / SL DivisionNote: Tea and coffee will be served at 15:30 in
front of the Auditorium \n\nhttp://indico.cern.ch/conferenceDisplay.py?con
fId=a034009
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034009
END:VEVENT
BEGIN:VEVENT
SUMMARY:SPS optics measurements with closed orbits
DTSTART;VALUE=DATE-TIME:20020404T140000Z
DTEND;VALUE=DATE-TIME:20020404T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034010@cern.ch
DESCRIPTION:A good knowledge of the beam optics is important for many aspe
cts of accelerator operation. Furthermore\, when large deviations are obse
rved with respect to the nominal machine model\, a correction of the optic
s may be required. A simple method to verify the beam optics consists in m
easuring the orbit response to kicks applied with steering magnets. Beside
s providing a fast qualitative check of the optics\, such measurements can
be used to correct the machine model and evaluate beam position monitor a
nd steering magnet calibrations. In 2001 this method was evaluated experim
entally in the SPS. Results and fits of the SPS machine model to the data
will be presented. Potential applications of this method to the long SPS-L
HC transfer lines will also be discussed.Organiser(s): Werner Herr / SL Di
visionNote: Tea and coffee will be served at 15:30 in front of the Auditor
ium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034010
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034010
END:VEVENT
BEGIN:VEVENT
SUMMARY:Beam-Beam Observations in RHIC\n
DTSTART;VALUE=DATE-TIME:20020418T140000Z
DTEND;VALUE=DATE-TIME:20020418T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034011@cern.ch
DESCRIPTION:Beam-beam effects in RHIC were observed in operation and in de
dicated experiments with both gold ions and protons. Observations include
measured beam-beam induced tune shifts as well as lifetime and emittance g
rowth measurements with and without beam-beam interaction. \nDuring ramps
unequal radio frequencies in the two rings cause the crossing points to mo
ve longitudinally. Thus bunches experience beam-beam interactions only in
intervals and the transverse tunes are modulated. RHIC is the only existin
g hadron collider in which strong-strong beam-beam effects can be expected
. Beam-beam driven coherent transverse oscillation modes could be created
in an experiment and were also seen during routine operation.Organiser(s):
Werner Herr / SL DivisionNote: Tea and coffee will be served at 15:30 in
front of the Auditorium \n\nhttp://indico.cern.ch/conferenceDisplay.py?con
fId=a034011
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034011
END:VEVENT
BEGIN:VEVENT
SUMMARY:Highlights of the ECLOUD'02 Workshop\n
DTSTART;VALUE=DATE-TIME:20020425T121500Z
DTEND;VALUE=DATE-TIME:20020425T131500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034020@cern.ch
DESCRIPTION:A mini-workshop on electron-cloud simulations for proton and p
ositron beams (ECLOUD'02) was held at CERN from April 15 to 18. The partic
ipation of about 50 scientists from more than 10 institutions \nreflects t
he importance of electron-cloud effects not only for the LHC\, but also fo
r B factories\, high-intensity proton machines\, and linear colliders. I w
ill present the workshop results\, summarize the discussions\, and mention
possible implications for the LHC\, SPS\, and PS.\n\nOrganiser(s): Werner
Herr / SL Division\nRuediger Schmidt / AC Division\n\nhttp://indico.cern.
ch/conferenceDisplay.py?confId=a034020
LOCATION:CERN LHC Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034020
END:VEVENT
BEGIN:VEVENT
SUMMARY:Feasibility Study for an LHC Upgrade
DTSTART;VALUE=DATE-TIME:20020502T140000Z
DTEND;VALUE=DATE-TIME:20020502T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034012@cern.ch
DESCRIPTION:A task force has investigated a possible staged upgrade of the
LHC and of its injectors with a view to increasing the nominal luminosity
by an order of magnitude and/or the beam energy by about a factor two. Se
veral scenarios have been considered\, including minor and major hardware
modifications in the LHC and its injectors\, limitations caused by the bea
m-beam interaction and the option of colliding long super-bunches with a l
arge crossing angle. The conclusions of this feasibility study are discuss
ed. \n\nOrganiser(s): Werner Herr / SL DivisionNote: Tea and coffee will b
e served at 15:30 in front of the Auditorium\n\nhttp://indico.cern.ch/conf
erenceDisplay.py?confId=a034012
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034012
END:VEVENT
BEGIN:VEVENT
SUMMARY:STATUS OF THE LHC PROTON BEAM IN THE SPS\n
DTSTART;VALUE=DATE-TIME:20020704T140000Z
DTEND;VALUE=DATE-TIME:20020704T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034015@cern.ch
DESCRIPTION:During the 2000-2001 shutdown the SPS has undergone a major ha
rdware upgrade to cope with its role of LHC injector. An impedance reducti
on campaign\, improvements to the RF beam-control systems\, and modificati
ons to the injection kicker magnets and transverse feedback were the main
items of this upgrade. In 2001 the major obstacle encountered in the achie
vement of the nominal LHC beam has been the beam induced-electron cloud. T
his generates both dramatic vacuum pressure increases and fast single and
coupled bunch transverse instabilities. The results of the studies perform
ed during the 2001 run and the preliminary observations conducted in 2002
are presented. The performances so far achieved with this high brilliance
beam are reviewed.Organiser(s): Werner Herr / SL DivisionNote: Tea and cof
fee will be served at 15:30 in front of the Auditorium \n\nhttp://indico.c
ern.ch/conferenceDisplay.py?confId=a034015
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034015
END:VEVENT
BEGIN:VEVENT
SUMMARY:Machine Protection and Interlock System for the LHC
DTSTART;VALUE=DATE-TIME:20020711T140000Z
DTEND;VALUE=DATE-TIME:20020711T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034014@cern.ch
DESCRIPTION:The superconducting Large Hadron Collider is not only an accel
erator with unprecedented complexity\, but also the energy stored in magne
t system and beams exceeds other machines by orders of magnitude. Operatio
n of the LHC must take into account that an energy of 11 GJ is stored in t
he magnet system\, and more than 300 MJ in each beam. \nSophisticated prot
ection systems are mandatory to minimise the risk for damage caused by a f
ailure.\nAn overview on the machine protection and ideas for the architect
ure of the interlocks are presented. Organiser(s): Werner Herr / SL Divisi
onNote: Tea and coffee will be served at 15:30 in front of the Auditorium\
n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034014
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034014
END:VEVENT
BEGIN:VEVENT
SUMMARY:Direct Measurement of Resonance Driving Terms at SPS\n
DTSTART;VALUE=DATE-TIME:20020725T140000Z
DTEND;VALUE=DATE-TIME:20020725T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034016@cern.ch
DESCRIPTION:Since a couple of years experiments are being performed at the
SPS to measure resonance driving terms caused by controlled sources of no
nlinearities. Single particle theory predicts that these terms can be dete
rmined by harmonic analysis of BPM data recorded after applying single kic
ks. This analysis works equally well for linear and non-linear diagnostics
of accelerators. A brief theoretical introduction will be given. In parti
cular\, two new aspects will be covered: the longitudinal variation of the
driving terms and the consequences of considering particle distributions
instead of a single particle. Results of the experiments will be presented
\, including direct measurements of resonance driving terms and the compar
ison with simulation of the theoretical model of the accelerator.Organiser
(s): Werner Herr / SL DivisionNote: Tea and coffee will be served at 15:30
in front of the Auditorium\n\nhttp://indico.cern.ch/conferenceDisplay.py?
confId=a034016
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034016
END:VEVENT
BEGIN:VEVENT
SUMMARY:Diagnostic of the LHC beams with a sychrotron radiation monitor\n
DTSTART;VALUE=DATE-TIME:20020912T140000Z
DTEND;VALUE=DATE-TIME:20020912T150000Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034013@cern.ch
DESCRIPTION:To carry out the transverse diagnostic of the LHC proton beams
\, it is planned to use a synchrotron radiation monitor. In order to revie
w the feasibility and to optimise the performance over the whole LHC energ
y range\, a comparative study of various types of sources was untertaken.
The results obtained made it possible to propose the installation of a sup
erconducting undulator combined with a separation dipole to measure the be
am profiles over all the energy ramp.\n\nOrganiser(s): Werner Herr / SL Di
visionNote: Tea and coffee will be served at 15:30 in front of the Auditor
ium\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=a034013
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034013
END:VEVENT
BEGIN:VEVENT
SUMMARY:NA48/1: High sensitivity investigation of K-Short and neutral hype
ron decays
DTSTART;VALUE=DATE-TIME:20021114T131500Z
DTEND;VALUE=DATE-TIME:20021114T141500Z
DTSTAMP;VALUE=DATE-TIME:20130522T202305Z
UID:indico-event-a034017@cern.ch
DESCRIPTION:A slightly modified version of the K12 beam line and the NA48
detector allow to search for K-short rare decays with unprecedented sensit
ivities and to collect large sample of semi-leptonic neutral hyperon decay
s. The new experiment -NA48/1- has collected data in 2002 \nduring the SPS
proton run. An overview of the experiment will be presented. \n\nPLEASE N
OTE UNUSUAL TIME !!!Organiser(s): Werner Herr / SL DivisionNote: Tea and c
offee will be served at 15:30 in front of the Auditorium\n\nhttp://indico.
cern.ch/conferenceDisplay.py?confId=a034017
LOCATION:CERN SL Auditorium
URL:http://indico.cern.ch/conferenceDisplay.py?confId=a034017
END:VEVENT
END:VCALENDAR