Home Page of Helmut Burkhardt

Time 2021-11-19 15:46:52

Web Name: Home Page of Helmut Burkhardt

WebSite: http://hbu.home.cern.ch

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Home pageof Helmut Burkhardt at CERN

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With links to recent papers andpresentations.On work for LHC, HL-LHC, SPS, LEP, FCC and Linear Colliders.Subjects includeLuminosity, Background, Lifetime, Monte CarloGenerators of background processes, Synchrotron radiation, Comptonscattering on black bodyphotons, very forward radiative Bhabha-scattering (Beam-BeamBremsstrahlung)and alpha QED. Linksto papers, conferences and transparencies shown

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Indico search for mypresentations

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CDSsearch for my papers

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Inspiresearch for my papers, my author profile on inspire

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Jacow search for mypresentations at machine conferences

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LHC related activities
HL-LHC: High Luminosity Large Hadron Collider
LBS LHC background study group, dealing with beam conditions as relevant for the LHC experiments
Related toexperimental conditions background, luminosity,commissioning, special physicsoptics -- high beta.
LHC background page( my older version is here )
Related to injection,beam loss, collimation.
LHC parameter calculator
LHeC information and parameter calculator

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Future Circular Collider, FCC, talk presented at UPHUK7/Bodrum

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4th Elba Workshop on Forward Physics @ LHC Energy, talk on High-beta optics and writeup

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The Large Hadron Collider, O. Brüning, H. Burkhardt, S. Myers, Progress in Particle and Nuclear Physics (2012), 10.1016/j.ppnp.2012.03.001, CERN-ATS-2012-064

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IPAC2019 Melbourne
Generalised Scattering Module in SixTrack 5, wpts026.pdf

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IPAC2018 Vancouver
Crab Cavity Failures Combined with a Loss of the Beam-Beam Kick in the High Luminosity LHC, mopmf042.pdf
LHC Operational Scenarios During 2017 Run, mopmf051.pdf
Beam-gas Background Characterization in the FCC-ee IR, mopmf085.pdf
Special Collimation System Configuration for the LHC High-Beta Runs, mopml012.pdf

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IPAC2017 Copenhagen
Synchrotron Radiation Backgrounds for the FCC-hh Experiments, tupva004.pdf
Beam-Gas Background Observations at LHC, tupva032.pdf
Progress in the Design of Beam Optics for FCC-ee Collider-Ring, tuocb1.pdf
Overview of Design Development of FCC-hh Experimental Iteraction Regions, tupva040.pdf

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IPAC2016 Busan/Korea
Machine Protection from Fast Crab Cavity Failures in the High Luminosity LHC, tupmw025
Design of Beam Optics for the FCC-ee Collider Ring, thpor022
Time Scale of Crab Cavity Failures Relevant for High Luminosity LHC, thpoy043

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IPAC2015 Richmond
General Functionality for Turn-Dependent Element Properties in SixTrack, mopje069
Tracking Simulation for Beam Loss Studies with Application to FCC, tupty004
Tools for Flexible Optimisation of IR Designs with Application to FCC, tupty031
Study of Muon Backgrounds in the CLIC Beam Delivery System, tupty032
Limits on Failure Scenarios for Crab Cavities in the HL-LHC, thpf095

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IPAC2014 Dresden
Upgrade of slicing and tracking in MAD-X, tupro063
Integration of a neutral absorber for the LHC point 8, tupro020
Preliminary study of risks and failure scenarios for the high luminosity Experiments in HL-LHC, tupro021

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EIC14 JLAB, talk on Experience with Machine-Induced Background at LHC

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IPAC2013 Shanghai contributions
Improved TEAPOT Method and Tracking with Thick Quadrupoles for the LHC and its Upgrade, mopwo027
Observation of Beam Instabilities with Very Tight Collimation, tupfi036
Collimation Down to 2 Sigma in Special Physics Runs in the LHC, tupfi037
Commissioning and Operation at beta* = 1000 m in the LHC, tupwo050

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IPAC2012 New Orleans contributions
90m Optics Studies and Operation in the LHC, moppc006
Plans for High Beta Optics in the LHC, moppc007
LHC Optics Determination with Proton Tracks Measured in the Roman Pots Detectors of the TOTEM Experiment, moppc008
Integration with the LHC of Electron Interaction Region Optics for a Ring-ring LHeC, tuppc036
Update on LHeC Ring-Ring Optics, tuppc037
Tracking LHC Models with Thick Lens Quadrupoles: Results and Comparisons with the Standard Thin Lens Tracking, tuppc079

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IPAC2011 San Sebastian contributions
Specification of New Vacuum Chambers for the LHC Experimental Interactions, tups026
LHeC Lattice Design, thpz014,
90 m Optics Commissioning, tupz001
90 m beta* Optics for ATLAS/ALFA, tupz002
Machine-induced Showers entering the ATLAS and CMS Detectors in the LHC, tupz012
Fill Analysis and Experimental Background Observations in the LHC, tupz020

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ICHEP Paris 2010, Optimisation of LHC beam conditions, PoS, ICHEP2010:006

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IPAC2010 Kyoto contributions
First Luminosity Scans in the LHC, MOPEC014
Beam-gas Loss Rates in the LHC, TUPEB072
Dependence of Background Rates on Beam Separation in the LHC, TUPEB073
Muon Backgrounds in CLIC, THPD014
Characterization of Interaction-Point Beam Parameters .. in the ATLAS Detector at the LHC, MOPEC008

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Physics at the Terascale, LHC Physics Workshop 2010, Machine Status and Prospects, Hamburg, Oct. 2010

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Courseon Accelerator Physics, Univ. Karlsruhe, WorkshopFreudenstadt Oct. 2009

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PAC 2009 Vancouver contributions
Luminosity Optimization and Calibration in the LHC WE6PFP015
Study of High Beta Optics Solution forTOTEM WE6PFP016
Optimization of the LHC Separation Bumps Including Beam-BeamEffects WE6PFP018
Halo and Tail Simulations with Application to the CLIC DriveBeam WE6PFP085
Simulation of Beam-Gas Scattering in the LHC TH5PFP011
Analysis of the Transverse SPS Beam Coupling Impedance with Short andLong Bunches FR5RFP047
TheLarge Hadron-electron Collider (LHeC) at the LHC FR1PBC05

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LHC status at startup, presentations at workshops and conferences
EDS'09, 29/06/2009, Startup planning for the LHC and operation scenario for forward physics, presentation, proceedings
LP'09, 17/08/2009, Status of the LHC Machine, presentation, proceedings
RADCOR'09, 26/10/2009, Status of the LHC Machine, presentation, proceedings

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AnnualKet meeting Nov. 2008, LHC Maschine, pdf

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Courseon Accelerator Physics, 40th school Maria LaachSept. 2008, the direct link to the slides is here

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EPAC 2008 Genova contributions
CERN SPS Impedance in 2007 TUPP066
Energy Loss of Gold Ions in RHIC WEPP001
Optics Flexibility in the LHC at Top Energy WEPP003
Overall Optics Solutions for Very High Beta-star in Atlas WEPP004
A Storage Ring Based Option for the LHeC WEPP052
Beam Scraping to Detect and Remove Halo in LHC Injection THPC149

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PAC2007 Albuquerque contributions
Beam Scraping for LHC Injection TUPAN088.PDF
Halo Estimates and Simulations for Linear Colliders WEOCC03.PDFand CLIC-Note-714(CERN-AB-2007-045)
Fast Vertical Single-Bunch Instability at Injection in the CERN SPS -An Update RPMN065.PDF
Numerical Study of the Very Forward Background from the Proton-ProtonCollisions in the LHC TUPAN102.PDF

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Absolute Luminosity from Machine Parameters, H.B. and P. Grafstrom, LHC-PROJECT-Report-1019, May 2007

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EPAC2006 Edinburgh contributions
Halo and Tail Generation Studies for Linear Colliders THPCH019.PDF
Optics Flexibility and Dispersion Matching at Injection into the LHC TUPLS014.PDF
On the Implementation of Experimental Solenoids in MAD-X and theirEffect on Coupling in the LHC WEPCH043.PDF

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AnnualKet meeting Nov. 2006, LHC status and planspdf

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Introduction to Accelerators, HST course July 2006,pdf

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The LHC Accelerator, IMPRS and Colloquium,MPI München, 21 February 2006, pdf

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AcceleratorRD for High Energy Physics. Report from the HEP2005 conference ABSeminar 22/9/2005,

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PAC2005 (Knoxville, TN) contributions
Optics Flexibility and Matching at LHC Injection, MPPE047, LHC-Project-Report-830; CERN-LHC-Project-Report-830
Measurements of the LHC Collimator Impedance with Beam in the SPS,TPAP008, LHC-Project-Report-831; CERN-LHC-Project-Report-831
Collimation in the Transfer Lines to the LHC, TPAP009, LHC-Project-Report-829; CERN-LHC-Project-Report-829

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Intensity and Luminosity after Beam Scraping, H.B. and R. Schmidt, Jul. 2004.

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Recent Machine Developments. MD-Notes and APCpresentations, with SPS single bunch coherent oscillations,Impedance studies, Space Charge, Observation of a transverse instability

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ICFA-HB2004 Oct.18-22 (Bernsheim)
"Loss control and collimation for the LHC", Talk pdf andWriteup pdfand LHC-Report803
"Single Bunch Transverse Intensity Limitations inthe SPS", Talk pdf andWriteup pdfAIP Conf. Proc.: 773 (2005) pp.368-370

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Chamonixworkshops on LHC,SPS, LEP with mycontributions

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EPAC2004(Luzern) contributions (the full proceedings are here):
Collimation in the transfer lines to the LHC, MOPLT012
Observation of a Fast Single-Bunch Transverse Instability on Protons inthe SPS, WEPLT012
Investigation of Space Charge Effects and Intrabeam Scattering for LeadIons in the SPS, WEPLT013

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PAC 2003(Portland) contributions(for the full PAC use this and for thefull proceedings this):
Protection Devices in the Transfer Lines to the LHC TPPB052and CERN-LHC-Project-Report-641
Investigation of Space Charge effects in the SPS RPPB012and CERN-AB-2003-013-ABP
Coherent tune shifts measured with few bunches in the SPS andcomparison with resistive wall theory RPPB013and CERN-AB-2003-014-ABP

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EPAC 2002 (Paris)contributions(for the full EPAC use this):
CoherentBeam Oscillations and Transverse Impedance in the SPS
BackgroundSimulation for the CLIC Beam Delivery System with Geant
AnEnergy Loss Measurement at HERA-p

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PAC 1995
Operational Procedures to Obtain High Beam-beam Tune Shifts in LEP Pretzel Operation
The SPS as Accelerator of Pb82+ Ions
High Intensity Proton Beams in a Multi-cycled SPS

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CLICactivities, EuroTeV htgen,backgrounds, gamma-gamma option, muon pair generatorsforGeant4

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Summary paper on AcceleratorPhysics at LEP in Reports on Progress in Physics, June 2000,local link
and a "Retrospective on LEP" in ICFA Beam DynamicsNewsletter #48April 2009

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Summary paper on Backgroundsat LEP, published in NIM, local link

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Multi-TeV CLICPhotonCollider Option, SL-2000-070 AP, CLIC Note 463,writeupof contribution to GG2000workshop

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Beam Lifetime andBeam Tails in LEP, writeupof contribution to e+e- factories workshop 1999, KEK

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InternationalWorkshopon Future e+e- Linear Colliders, 1999 Sitges (LCWS99)
my contribution: Machine Background common to all machines :transparencies,writeup
Here thelist of transparencies of all talks.

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Collection of LEPBeam-DynamicsParameters

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Transversebeam tails due to inelastic scattering , Phys. Rev. ST Accel.Beams3, 091001 (2000)

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Study group for Elfeat CERN , 1999
Work and papers on BeamLifetime including Monte Carlo Simulation of large cross sectionprocesses,relevant for Beam Lifetime and Background estimates (Beam-BeamBremsstrahlung,Compton scattering on black-body radiation)

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Monte Carlogeneration of the energy spectrum of synchrotron radiation, 8 June2007, CERN-OPEN-2007-018;CLIC-Note-709; EUROTEV-Report-2007-018
integrated in geant4,G4SynchrotronRadiation.cc,hh in processes/electromagnetic/xrays and documented in the physicsmanual under X-Ray production / Synchrotron Radiation
previous stand alone version :
LEP Note 632 MonteCarlo Generator for Synchrotron Radiation17 Dec. 1990
LHC Note Reminderof the Edge Effect in Synchrotron Radiation
Work and papers on alphaQED. PAC 1997 (Vancouver)contributions:
EnergyDependence of Beam-BeamInteractions at LEP ,
EnergyLoss of Proton andLead Beams in the CERN-SPS,
Observationand Simulationof Beam Tails in LEP
ICFA workshop 1997 in Frascation "BeamDynamicsIssues for e+e- Factories",
my contribution: Beam-BeamInteraction and Beam Lifetime in LEP;

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EPAC 1996(Sitges) contributions(for the full EPAC use this):
Beam Tailsand as part of the proceedings
LEP1 operation
Lead ion beam emittanceand transmission studies in the PS-SPS complex at CERN

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PAC 1995, Dallas
Operational Procedures to Obtain High Beam-Beam Tune Shifts in LEP Pretzel Operation
The SPS as accelerator of PB82+ ions
High Intensity Proton Beams in a Multi-cycled SPS

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EPAC 1994, London
LEP Operation in 1993 with the Pretzel Scheme, EPAC1994_0439
Experience with Particle Backgrounds at LEP, EPAC1994_0451
Beam Lifetimes in LEP, EPAC1994_1353

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SL-MD-Notes

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Contributions to books
Accelerators for Particle Physics, Handbook of Particle Detection and Imaging
Experimental Conditions, Lifetimes, Intensity and Luminosity, Landolt-Börnstein, Handbook Volume III
Van der Meer Scan: Proton Beam Tomography, Advanced Series on Directions in High Energy Physics: Volume 27
Accelerators: the Particle Smashers, Physics at the Terascale, Wiley-VCH, June 2011

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the QR code of this page

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CERN phone andaddress

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