Delta undulator magnet: concept and project status
|
|
- Esther Lamb
- 6 years ago
- Views:
Transcription
1 Delta undulator magnet: concept and project status Part I: concept and model construction* Alexander Temnykh, CLASSE, Cornell University, Ithaca, New York, USA Part - II: beam test at ATF in BNL + M. Babzien, D. Davis, M. Fedurin, K. Kusche, J.Park, V. Yakimenko, Brookhaven National Laboratory, Upton, USA Alexander Temnykh, CLASSE, Cornell University, Ithaca, New York, USA *Work has been supported by NSF grant DMR and PHY Supported by DOE Office of Science
2 Outline Delta undulator magnet concept. Two considerations On-axis vacuum Radiation damage Model construction Magnetic field properties Vacuum Beam test at ATF BNL Conclusion FLS 2010, SLAC March 1-5,
3 Delta undulator magnet concept Two AP (adjustable phase**) undulators assembled in one device. 1. Compact box-like frame: prototype dimension ~150mmx150mm 2. Full polarization control 3. Sqrt(2) stronger field in planar mode and ~2X stronger in helical mode in compare with conventional / Apple II type undulators. Potential applications: ERLs, XFELs, (storage rings?) *A. Temnykh, Phys. Rev. ST Accel. Beams 11, (2008). **Basic theory: Roger Carr, Nucl. Instr. And Meth. A 306(1991) FLS 2010, SLAC March 1-5,
4 Delta undulator magnet concept *See Ref: P. Elleaume, et al., Design considerations for a 1 A SASE undulator, NIMA, 455(2000) m long Delta and 25m long APS U33 undulator structures comparison FLS 2010, SLAC March 1-5,
5 Delta undulator magnet concept Historical excurse - similar designs Apple-II (left) and Apple III (right) ** Pavel Vobly, HELICAL UNDULATOR FOR PRODUCINGCIRCULARLY POLARIZED PHOTONS, In proccedings of the workshop on new kinds of positron sources for linear collider, March 4-7, SLAC-R-502, CONF , pp **J. Bahrdt, et al., UNDULATORS FOR THE BESSY SOFTX- RAY FEL, Proccedings of the 2004 FEL Conference, pp FLS 2010, SLAC March 1-5,
6 On-axis vacuum Four channels from on- axis area to outside. Model in Ref*: 0.5mm wide slit 5mm ID bore B = 0.05cm; L = 1.57cm; L/B = 31.5 a (transmission probability) = 0.12* Molecular conductance for 4 channels: C [L/s] = 4 x 11.6 x a x B [cm] / per 1cm of length Ni plated PM blocks outgassing rate (after 48hrs, 120degC baking) has been measured in Ref **: R~4 x 10^-12Torr/L/sec/cm^2 or less ** The pressure differential between on-axis and outside will be: dp = Q / C = *0.5*4e-12/(4*11.6*0.12*0.05) = 2.3e-11Torr (0.02nTorr!) *John F. O'Hanlon, A Users Guide to Vacuum Technology, Second Edition, pp ** Yulin Li, ADC In-Vacuum Undulator Magnet Material Out-gassing Test Report Feb. 20, 2008 FLS 2010, SLAC March 1-5,
7 Radiation damage consideration Major source of radiation - high energy electrons scattered on the residual gas. Small angle Coulomb scattering cross section : where Z dσ = dω 4Z γ 2 2 r 2 e - nuclear charge, γ - relativistic factor, 1 ( ) ; θ + θ min re - classical electron radius s x θ dx a High energy electron flux rate though cylindrical surface of radius a as function of residual gas density n gas and distance s: F( s) = I q e e n gas 4π Z 2 γ 2 r 2 e s a 2 2 FLS 2010, SLAC March 1-5,
8 Radiation damage consideration Assuming Z=7.5 (worst case), 5mm bore, 5GeV beam energy and that all scattered electrons deposit energy into ~5mm layer around bore (required simulation) we can estimate the rate of the dose accumulation as: ' 5 D [ rad / sec] = Ib[ A] P[ nt ] S 2 [ m] Critical dose D c ~ 2Mrad (NbFeB 40SH, 1% demagnetization), see Ref * Estimated life time for 5 and 25m undulators as function of on-axis residual gas pressure. As a life time criteria we used ~1% demagnetization of undulator downstream end. The undulator temperature lowering will Decries out-gassing, lower pressure Increase radiation resistivity. * A. Temnykh, NIMA, Volume 587, Issue 1, 11 March 2008, Pages FLS 2010, SLAC March 1-5,
9 Model construction steps Model parameters PPM structure NbFeB (40SH) Br =1.25T, Hci > 20Koe Period 24mm Length ~ 30cm Bmax (designed) in helical mode ~1.0T Bmax (designed) in planar ~ 1.4T Assembly start Test assembly and dimensions check Magnet field measurement and tuning Model in vacuum vessel Transport from Cornell to BNL FLS 2010, SLAC March 1-5,
10 Model construction: magnetic field tuning B y tuning with Hall probe (1) Conventional setup. For field analysis used B2E software from ESRF (2) 1. Hall probe sensor (HGT-2101) mounted on sliding stage 2. Sliding stage By along magnet Trajectory Optical phase errors, RMS ~2.0deg FLS 2010, SLAC March 1-5,
11 Model construction: field properties in helical mode Measured field components Trajectory X-ray Spectra Helical mode, left circular polarization (phase between vertical and horizontal pairs 90 0 ) Helical mode, right circular polarization (phase between vertical and horizontal pairs ) FLS 2010, SLAC March 1-5,
12 Model construction: field properties in planar mode Measured field components Trajectory X-ray Spectra Planar mode, - 45deg linear polarization (phase between vertical and horizontal pairs 180deg) Planar mode, +45deg linear polarization (vertical and horizontal pairs in phase) Note: B1 and B2 two orthogonal field component tilted relative horizontal and vertical axis by 45deg. FLS 2010, SLAC March 1-5,
13 Model construction: vacuum property Assembled model bake out. After 80hrs, 55degC baking P min ~ 40nT Measured pumping speed 7.7litr/sec. Outgassing rate: 2.77e-7 Torr litr/sec H 2 (~89%) RGA spectra H 2 O(5.2%) Nitrogen/CO(5.7%) FLS 2010, SLAC March 1-5,
14 Beam test Two major goals: 1. Get experience in transportation, installation, test mechanics. (No problems with transportation and installation, mechanics work OK) 2. Characterize (verify) undulator radiation properties ATF beam line #2 schematic ATF beam parameters: Energy in range from 52MeV to 72MeV Normalized emittance 1e-6 m*rad Bunch charge ~ 500pC Repetition rate ~ 1.3 pulse/sec Delta undulator installed in BL2 ATF. FLS 2010, SLAC March 1-5,
15 Beam test Optical diagnostics scheme InSb(77K) detector Maximum sensitivity at 4500nm Narrow band pass filters Flat mirror Parabolic mirror Delta undulator Movable Collimator Beam line elements Electron beam FLS 2010, SLAC March 1-5,
16 Beam test Undulator in planar mode. Undulator in helical mode. 4520nm (bottom) and 3600nm (right) wavelength radiations versus beam energy. Both data confirmed 0.93T field amplitude. 5300nm wavelength radiation as function of the electron beam energy. Signal confirmed 1.28T peak field in undulator FLS 2010, SLAC March 1-5,
17 Beam test Undulator in helical mode, 4520nm radiation (fundamental harmonics) Radiation cone spatial distribution as function of beam energy measured with collimator 2D scan. Scanning range: mm, mm, Step: 5mm Collimator: 12.7mm diameter Eb = 58MeV 60 MeV 62 MeV 64 MeV 66 MeV FLS 2010, SLAC March 1-5,
18 Beam test Encountered problem: Undulator field focusing effect 1 f = B 2 2 L max ( ) ; 2 Bρ where f is a focal length; max L - undulator length; Bρ - beam stiffness ; B - undulator peak field; For undulator in planar mode and 60MeV beam it gives: f =17cm; focus in one plane For helical mode and 60MeV beam: f = 31cm; focus in both planes Strong focusing in planar mode made beam line optics match very difficult. Higher beam energy would be better. FLS 2010, SLAC March 1-5,
19 Conclusion 1. We developed concept and built short model of Delta undulator magnet. 2. Mechanical, magnetic and vacuum properties of the magnet have been tested. 3. The beam test confirmed the basic characteristics of the magnetic field: 0.93T in helical mode and 1.27T in planar. 4. Future plans under consideration. Acknowledge I would like to thank David Rice, Sol Gruner, Donald Bilderback and Maury Tigner for support. My special thanks to Yulin Li and Karl Smolensky as well as vacuum group for useful discussions and help in the model construction. FLS 2010, SLAC March 1-5,
DELTA UNDULATOR FOR CORNELL ENERGY RECOVERY LINAC
CBN 08-09 DELTA UNDULATOR FOR CORNELL ENERGY RECOVERY LINAC Alexander B. Temnykh Cornell University, LEPP, Ithaca, New York, USA (Dated: November 7, 2008) Work supported by National Science Foundation
More informationDelta undulator for Cornell energy recovery linac
PHYSICAL REVIEW SPECIAL TOPICS - ACCELERATORS AND BEAMS 11, 120702 (2008) Delta undulator for Cornell energy recovery linac Alexander B. Temnykh* Cornell University, LEPP, Ithaca, New York 14853-8001,
More informationVacuum baking test of NdFeB permanent magnet material for ERL undulators *.
Jan 28 2007 CBN 07-4 Vacuum baking test of NdFeB permanent magnet material for ERL undulators *. Alexander Temnykh, Cornell University, Ithaca NY, 14853 Abstract. The note describes result of the vacuum
More informationHigh Energy Gain Helical Inverse Free Electron Laser Accelerator at Brookhaven National Laboratory
High Energy Gain Helical Inverse Free Electron Laser Accelerator at Brookhaven National Laboratory J. Duris 1, L. Ho 1, R. Li 1, P. Musumeci 1, Y. Sakai 1, E. Threlkeld 1, O. Williams 1, M. Babzien 2,
More informationExperimental study of nonlinear laser-beam Thomson scattering
Experimental study of nonlinear laser-beam Thomson scattering T. Kumita, Y. Kamiya, T. Hirose Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan I.
More informationRADIATION SOURCES AT SIBERIA-2 STORAGE RING
RADIATION SOURCES AT SIBERIA-2 STORAGE RING V.N. Korchuganov, N.Yu. Svechnikov, N.V. Smolyakov, S.I. Tomin RRC «Kurchatov Institute», Moscow, Russia Kurchatov Center Synchrotron Radiation undulator undulator
More informationUSPAS course on Recirculated and Energy Recovered Linacs Ivan Bazarov, Cornell University Geoff Krafft, JLAB. ERL as a X-ray Light Source
USPAS course on Recirculated and Energy Recovered Linacs Ivan Bazarov, Cornell University Geoff Krafft, JLAB ERL as a X-ray Light Source Contents Introduction Light sources landscape General motivation
More informationCharacterization of an 800 nm SASE FEL at Saturation
Characterization of an 800 nm SASE FEL at Saturation A.Tremaine*, P. Frigola, A. Murokh, C. Pellegrini, S. Reiche, J. Rosenzweig UCLA, Los Angeles, CA 90095 M. Babzien, I. Ben-Zvi, E. Johnson, R. Malone,
More informationResearch with Synchrotron Radiation. Part I
Research with Synchrotron Radiation Part I Ralf Röhlsberger Generation and properties of synchrotron radiation Radiation sources at DESY Synchrotron Radiation Sources at DESY DORIS III 38 beamlines XFEL
More informationX-ray Free-electron Lasers
X-ray Free-electron Lasers Ultra-fast Dynamic Imaging of Matter II Ischia, Italy, 4/30-5/3/ 2009 Claudio Pellegrini UCLA Department of Physics and Astronomy Outline 1. Present status of X-ray free-electron
More informationUndulator Commissioning Spectrometer for the European XFEL
Undulator Commissioning Spectrometer for the European XFEL FEL Beam Dynamics Group meeting DESY, Hamburg, Nov. 9 th 010 Wolfgang Freund, WP74 European XFEL wolfgang.freund@xfel.eu Contents Undulator commissioning
More informationMAGNETS AND INSERTION DEVICES FOR THE ESRF II
MAGNETS AND INSERTION DEVICES FOR THE ESRF II OUTLINE Magnetic design R&D and Magnetic measurements IDs & BM sources Summary J. Chavanne G. Lebec C. Benabderrahmane C.Penel On behalf the accelerator upgrade
More informationExperimental Optimization of Electron Beams for Generating THz CTR and CDR with PITZ
Experimental Optimization of Electron Beams for Generating THz CTR and CDR with PITZ Introduction Outline Optimization of Electron Beams Calculations of CTR/CDR Pulse Energy Summary & Outlook Prach Boonpornprasert
More informationSCSS Prototype Accelerator -- Its outline and achieved beam performance --
SCSS Prototype Accelerator -- Its outline and achieved beam performance -- Hitoshi TANAKA RIKEN, XFEL Project Office 1 Content 1. Light Quality; SPring-8 v.s. XFEL 2. What are the critical issues? 3. Mission
More informationCompact PPM Undulator for Cornell High Energy Synchrotron Source
CBN 11-3 Compact PPM Undulator for Cornell High Energy Synchrotron Source Alexander Temnykh*, Thomas Kobela, Aaron Lyndaker, James Savino, Ethan Suttner and Yulin Li CLASSE, Cornell University, Ithaca,
More informationEnergy Recovery Linac (ERL) Properties. Physics Dept. & Cornell High Energy Synchrotron Source (CHESS) Ithaca, NY Cornell University
Energy Recovery Linac (ERL) Properties Sol M. Gruner Physics Dept. & Cornell High Energy Synchrotron Source (CHESS) Cornell University Ithaca, NY 14853-2501 Acknowledgements T. Allen (Special thanks to
More informationSimulations of the IR/THz source at PITZ (SASE FEL and CTR)
Simulations of the IR/THz source at PITZ (SASE FEL and CTR) Introduction Outline Simulations of SASE FEL Simulations of CTR Summary Issues for Discussion Mini-Workshop on THz Option at PITZ DESY, Zeuthen
More informationFree electron lasers
Preparation of the concerned sectors for educational and R&D activities related to the Hungarian ELI project Free electron lasers Lecture 2.: Insertion devices Zoltán Tibai János Hebling 1 Outline Introduction
More informationNew Electron Source for Energy Recovery Linacs
New Electron Source for Energy Recovery Linacs Ivan Bazarov 20m Cornell s photoinjector: world s brightest electron source 1 Outline Uses of high brightness electron beams Physics of brightness High brightness
More information3. Synchrotrons. Synchrotron Basics
1 3. Synchrotrons Synchrotron Basics What you will learn about 2 Overview of a Synchrotron Source Losing & Replenishing Electrons Storage Ring and Magnetic Lattice Synchrotron Radiation Flux, Brilliance
More informationLASER-COMPTON SCATTERING AS A POTENTIAL BRIGHT X-RAY SOURCE
Copyright(C)JCPDS-International Centre for Diffraction Data 2003, Advances in X-ray Analysis, Vol.46 74 ISSN 1097-0002 LASER-COMPTON SCATTERING AS A POTENTIAL BRIGHT X-RAY SOURCE K. Chouffani 1, D. Wells
More information2.6 Electron transport lines
2.6 Electron transport lines 2.6 Electron transport lines Overview The electron transport lines consist of all of the electron beamline segments that are neither part of the Linacs nor part of the injector.
More informationLITHIUM LENS FOR EFFECTIVE CAPTURE OF POSITRONS
CBN 07-5 LITHIUM LENS FOR EFFECTIVE CAPTURE OF POSITRONS Alexander Mikhailichenko Cornell University, LEPP, Ithaca, NY 14853 Positron Source Meeting, Jan30-Feb 007, Beijing Efficiency= N e+ /N gammas Angle
More informationMeasuring very low emittances using betatron radiation. Nathan Majernik October 19, 2017 FACET-II Science Workshop
Measuring very low emittances using betatron radiation Nathan Majernik October 19, 2017 FACET-II Science Workshop Plasma photocathode injection Trojan horse High and low ionization threshold gases Blowout
More informationWaseda University. Design of High Brightness Laser-Compton Light Source for EUV Lithography Research in Shorter Wavelength Region
Waseda University Research Institute for Science and Engineering Design of High Brightness Laser-Compton Light Source for EUV Lithography Research in Shorter Wavelength Region Research Institute for Science
More informationPart V Undulators for Free Electron Lasers
Part V Undulators for Free Electron Lasers Pascal ELLEAUME European Synchrotron Radiation Facility, Grenoble V, 1/22, P. Elleaume, CAS, Brunnen July 2-9, 2003. Oscillator-type Free Electron Laser V, 2/22,
More informationSLAC-TN-93-2 SLAC/SSRL-0002 January 1993 (SSRL/ACD) COMPARISON OF PLANAR HELICAL UNDULATOR DESIGNS FOR SPEAR BEAMLINE FIVE*
SLAC-TN-93-2 SLAC/SSRL-0002 January 1993 (SSRL/ACD) COMPARISON OF PLANAR HELICAL UNDULATOR DESIGNS FOR SPEAR BEAMLINE FIVE* Roger Car-r Stanford Linear Accelerator Center Stanford Synchrotron Radiation
More informationDevelopment of Soft X-rayX using Laser Compton Scattering
26 th Advanced ICFA Beam Dynamics Workshop on Nanometre-Size Colliding Beams September 2-6, 2002 at Lausanne Development of Soft X-rayX Source using Laser Compton Scattering R. Kuroda*, S. Kashiwagi*,
More informationVertical Polarization Option for LCLS-II. Abstract
SLAC National Accelerator Lab LCLS-II TN-5-8 March 5 Vertical Polarization Option for LCLS-II G. Marcus, T. Raubenheimer SLAC, Menlo Park, CA 95 G. Penn LBNL, Berkeley, CA 97 Abstract Vertically polarized
More informationKnot undulator to generate linearly polarized photons with low on-axis power density. Abstract
Knot undulator to generate linearly polarized photons with low on-axis power density SLAC-PUB-13687 June 2009 S. Qiao, 1, 2, 3, Dewei Ma, 3 Donglai Feng, 3 Z. Hussain, 2 and Z. -X. Shen 1 1 Department
More informationFURTHER UNDERSTANDING THE LCLS INJECTOR EMITTANCE*
Proceedings of FEL014, Basel, Switzerland FURTHER UNDERSTANDING THE LCLS INJECTOR EMITTANCE* F. Zhou, K. Bane, Y. Ding, Z. Huang, and H. Loos, SLAC, Menlo Park, CA 9405, USA Abstract Coherent optical transition
More informationCompressor and Chicane Radiation Studies at the ATF. Gerard Andonian, UCLA High Power Workshop January 14-16, 2009 UCLA
Compressor and Chicane Radiation Studies at the ATF Gerard Andonian, UCLA High Power Workshop January 14-16, 2009 UCLA Collaboration UCLA PBPL G. Andonian, A. Cook, M. Dunning, E. Hemsing, A. Murokh, S.
More informationImaging & Microscopy
Coherent X-ray X Imaging & Microscopy => Opportunities Using a Diffraction-Limited Energy Recovery Linac (ERL) Synchrotron Source Q. Shen D. Bilderback, K.D. Finkelstein, E. Fontes, & S. Gruner Cornell
More informationA Prototype Phase Shifter for the Undulator Systems at the. TESLA X-ray FEL
A Prototype Phase Shifter for the Undulator Systems at the TESLA X-ray FEL J. Pflüger, M. Tischer HASYLAB at DESY Notkestr 85, 63 Hamburg, Germany TESLA-FEL -8, December Abstract Five SASE FEL s and five
More informationLCLS Undulators Present Status and Future Upgrades
LCLS Undulators Present Status and Future Upgrades Heinz-Dieter Nuhn LCLS Undulator Group Leader 1 1 Heinz-Dieter Nuhn Linac Coherent Light Source INJECTOR LINAC BEAM TRANSPORT UNDULATOR HALL 2 2 Heinz-Dieter
More informationGeorg Hoffstaetter Cornell Physics Dept. / CLASSE Cornell s ERL team
1 R&D toward an ERL Georg Hoffstaetter Cornell Physics Dept. / Cornell s ERL team DC-gun R&D CW linac R&D SRF injector R&D Undulator R&D 2 Cornell history: The ERL principle Energy recovery needs continuously
More informationWhat is an Energy Recovery Linac and Why is there one in your Future?
What is an Energy Recovery Linac and Why is there one in your Future? Sol M. Gruner CHESS, Physics Dept. Cornell University Ithaca, NY 14853 Outline 1. Who needs another synchrotron source? 2. What is
More informationCONCEPTUAL STUDY OF A SELF-SEEDING SCHEME AT FLASH2
CONCEPTUAL STUDY OF A SELF-SEEDING SCHEME AT FLASH2 T. Plath, L. L. Lazzarino, Universität Hamburg, Hamburg, Germany K. E. Hacker, T.U. Dortmund, Dortmund, Germany Abstract We present a conceptual study
More informationObservation of Ultra-Wide Bandwidth SASE FEL
Observation of Ultra-Wide Bandwidth SASE FEL Gerard Andonian Particle Beam Physics Laboratory University of California Los Angeles The Physics and Applications of High Brightness Electron Beams Erice,
More informationComparison of the brilliance limit between MAX IV 3 GeV ring and NSLS II low beta straights using the same undulator technique
Comparison of the brilliance limit between 3 GeV ring and low beta straights using the same undulator technique Erik Wallén Thu 10 Nov 2011 22:18:57 Contents Contents 1 1 Introduction 2 2 Undulator technique
More informationFirst observation of Current Filamentation Instability (CFI)
First observation of Current Filamentation Instability (CFI) PI - Patric Muggli: University of Southern California Vitaly Yakimenko, Mikhail Fedurin, Karl Kusche, Marcus Babzien: Brookhaven National Laboratory
More informationLattice Design and Performance for PEP-X Light Source
Lattice Design and Performance for PEP-X Light Source Yuri Nosochkov SLAC National Accelerator Laboratory With contributions by M-H. Wang, Y. Cai, X. Huang, K. Bane 48th ICFA Advanced Beam Dynamics Workshop
More informationDiagnostics at the MAX IV 3 GeV storage ring during commissioning. PPT-mall 2. Åke Andersson On behalf of the MAX IV team
Diagnostics at the MAX IV 3 GeV storage ring during commissioning PPT-mall 2 Åke Andersson On behalf of the MAX IV team IBIC Med 2016, linje Barcelona Outline MAX IV facility overview Linac injector mode
More informationUpdate on and the Issue of Circularly-Polarized On-Axis Harmonics
Update on FERMI@Elettra and the Issue of Circularly-Polarized On-Axis Harmonics W. Fawley for the FERMI Team Slides courtesy of S. Milton & Collaborators The FERMI@Elettra Project FERMI@Elettra is a single-pass
More informationPerformance Metrics of Future Light Sources. Robert Hettel, SLAC ICFA FLS 2010 March 1, 2010
Performance Metrics of Future Light Sources Robert Hettel, SLAC ICFA FLS 2010 March 1, 2010 http://www-ssrl.slac.stanford.edu/aboutssrl/documents/future-x-rays-09.pdf special acknowledgment to John Corlett,
More informationSimulations of the IR/THz Options at PITZ (High-gain FEL and CTR)
Case Study of IR/THz source for Pump-Probe Experiment at the European XFEL Simulations of the IR/THz Options at PITZ (High-gain FEL and CTR) Introduction Outline Simulations of High-gain FEL (SASE) Simulation
More informationSLAC Summer School on Electron and Photon Beams. Tor Raubenheimer Lecture #2: Inverse Compton and FEL s
SLAC Summer School on Electron and Photon Beams Tor Raubenheimer Lecture #: Inverse Compton and FEL s Outline Synchrotron radiation Bending magnets Wigglers and undulators Inverse Compton scattering Free
More informationLight Source I. Takashi TANAKA (RIKEN SPring-8 Center) Cheiron 2012: Light Source I
Light Source I Takashi TANAKA (RIKEN SPring-8 Center) Light Source I Light Source II CONTENTS Introduction Fundamentals of Light and SR Overview of SR Light Source Characteristics of SR (1) Characteristics
More informationLow slice emittance preservation during bunch compression
Low slice emittance preservation during bunch compression S. Bettoni M. Aiba, B. Beutner, M. Pedrozzi, E. Prat, S. Reiche, T. Schietinger Outline. Introduction. Experimental studies a. Measurement procedure
More informationVacuum System of Synchrotron radiation sources
3 rd ILSF Advanced School on Synchrotron Radiation and Its Applications September 14-16, 2013 Vacuum System of Synchrotron radiation sources Prepared by: Omid Seify, Vacuum group, ILSF project Institute
More informationPREX Simulation Update
PREX Simulation Update Rakitha Beminiwattha Syracuse University rakithab@jlab.org 1 Outline PREX-II Collimator Plastic Shielding for Neutrons PREX-II Background Radiation Effects of Septum Magnet Fringe
More informationEnergy Recovery Linac (ERL) Science Workshop
Energy Recovery Linac (ERL) Science Workshop Sol M. Gruner, CHESS & Physics Dept. Objective: Examine science possible with an ERL x-ray source. Ques.: Ans.: Why do this? Need for more and better SR machines.
More informationX-Ray Diagnostics Commissioning at the LCLS
X-Ray Diagnostics Commissioning at the LCLS - Selected Studies - J. Welch, SLAC National Accelerator Laboratory Aug. 3-27, 2010 Commissioning Studies Microbunching Instability Laser Heater tune-up Gas
More informationPAL LINAC UPGRADE FOR A 1-3 Å XFEL
PAL LINAC UPGRADE FOR A 1-3 Å XFEL J. S. Oh, W. Namkung, Pohang Accelerator Laboratory, POSTECH, Pohang 790-784, Korea Y. Kim, Deutsches Elektronen-Synchrotron DESY, D-603 Hamburg, Germany Abstract With
More informationPREX Background Simulation Update
PREX Background Simulation Update Rakitha Beminiwattha Syracuse University rakithab@jlab.org 1 Outline PREX-II Collimator Plastic Shielding for Neutrons PREX-II Background Radiation Activation Studies
More informationAccelerator R&D Opportunities: Sources and Linac. Developing expertise. D. Rubin, Cornell University
Accelerator R&D Opportunities: Sources and Linac D. Rubin, Cornell University Electron and positron sources Requirements Status of R&D Linac Modeling of beam dynamics Development of diagnostic and tuning
More informationSynchrotron Radiation a Tool for Precise Beam Energy Measurements at the ILC
Synchrotron Radiation a Tool for Precise Beam Energy Measurements at the ILC K.Hiller, R.Makarov, H.J.Schreiber, E.Syresin and B.Zalikhanov a BPM based magnetic spectrometer example E b see LC-DET-2004-031
More informationIntroduction to electron and photon beam physics. Zhirong Huang SLAC and Stanford University
Introduction to electron and photon beam physics Zhirong Huang SLAC and Stanford University August 03, 2015 Lecture Plan Electron beams (1.5 hrs) Photon or radiation beams (1 hr) References: 1. J. D. Jackson,
More informationUpstream Polarimetry with 4-Magnet Chicane
2005 International Linear Collider Workshop Stanford, U.S.A. Upstream Polarimetry with 4-Magnet Chicane N. Meyners, V. Gharibyan, K.P. Schüler DESY, Hamburg, Germany We have extended an earlier polarimeter
More informationAlignment of the Dipole Magnets in the Cornell Electron-Positron Storage Ring
Alignment of the Dipole Magnets in the Cornell Electron-Positron Storage Ring R. Holtzapple, R. Eshelman, E. Eggler, M. Giannella, D. Kubik, D. Rice, and A. Tamakuwala Laboratory of Nuclear Studies, Cornell
More informationDevelopments for the FEL user facility
Developments for the FEL user facility J. Feldhaus HASYLAB at DESY, Hamburg, Germany Design and construction has started for the FEL user facility including the radiation transport to the experimental
More informationFundamental and Harmonic Microbunching Measurements in a High-Gain, Self-amplified, Spontaneous Emission Free-Electron Laser
Fundamental and Harmonic Microbunching Measurements in a High-Gain, Self-amplified, Spontaneous Emission Free-Electron Laser A. Tremaine 1, X.J. Wang 2, M. Babzien 2, I. Ben-Zvi 2, M. Cornacchia 3, A.
More informationSummary Report: Working Group 2 Storage Ring Sources Future Light Source Workshop SLAC, March 1-5, S. Krinsky and R. Hettel
Summary Report: Working Group 2 Storage Ring Sources Future Light Source Workshop SLAC, March 1-5, 2010 S. Krinsky and R. Hettel Sessions 1. Low Emittance Ring Design --Y. Cai 2. Novel Concepts --D. Robin
More informationStart-to-End Simulations
AKBP 9.3 Case Study for 100 µm SASE FEL Based on PITZ Accelerator for Pump-Probe Experiment at the European XFEL Start-to-End Simulations Outline Introduction Beam Optimization Beam Transport Simulation
More informationDemonstration of Energy-Chirp Control in Relativistic Electron Bunches at LCLS Using a Corrugated Structure. Karl Bane, 7 April 2017,, KEK
Demonstration of Energy-Chirp Control in Relativistic Electron Bunches at LCLS Using a Corrugated Structure Karl Bane, 7 April 2017,, KEK Introduction At the end of acceleration in an X-ray FEL, the beam
More informationRadiation Protection Considerations for the Cryogenic In-Vacuum Undulator of the EMIL Project at BESSY
Radiation Protection Considerations for the Cryogenic In-Vacuum Undulator of the EMIL Project at BESSY Yvonne Bergmann, Klaus Ott Helmholtz- Zentrum Berlin BESSY II Radiation Protection Department yvonne.bergmann@helmholtz-berlin.de
More informationFree-electron laser SACLA and its basic. Yuji Otake, on behalf of the members of XFEL R&D division RIKEN SPring-8 Center
Free-electron laser SACLA and its basic Yuji Otake, on behalf of the members of XFEL R&D division RIKEN SPring-8 Center Light and Its Wavelength, Sizes of Material Virus Mosquito Protein Bacteria Atom
More informationDiagnostics Needs for Energy Recovery Linacs
Diagnostics Needs for Energy Recovery Linacs Georg H. Hoffstaetter Cornell Laboratory for Accelerator-based Sciences and Education & Physics Department Cornell University, Ithaca New York 14853-2501 gh77@cornell.edu
More informationBrightness and Coherence of Synchrotron Radiation and Free Electron Lasers. Zhirong Huang SLAC, Stanford University May 13, 2013
Brightness and Coherence of Synchrotron Radiation and Free Electron Lasers Zhirong Huang SLAC, Stanford University May 13, 2013 Introduction GE synchrotron (1946) opened a new era of accelerator-based
More informationAdvanced Storage Photon Ring Source Upgrade Project:
Advanced Storage Photon Ring Source Upgrade Project: The Shielding World s for Leading the Hard X-ray Light Source Advanced Photon Source - Upgrade Bradley J. Micklich Radiation Physicist Argonne National
More informationSimulation of Laser-wires at CLIC using BDSIM
Simulation of Laser-wires at CLIC using BDSIM Grahame A. Blair, Royal Holloway Univ of London, UK. Abstract A laserwire system within the CLIC beam delivery system is simulated using Geant4. The issues
More informationTwo Dimensional SR-Interferometer at PETRA III. Artem Novokshonov DESY, Tomsk Polytechnic University
Two Dimensional SR-Interferometer at PETRA III Artem Novokshonov DESY, Tomsk Polytechnic University First Part: Two Dimensional Interferometer at Petra III Interferometer principal Schematic of the Interferometer
More informationDESIGN STUDY OF LCLS CHIRP-CONTROL WITH A CORRUGATED STRUCTURE
DESIGN STUDY OF LCLS CHIRP-CONTROL WITH A CORRUGATED STRUCTURE Z. Zhang, K. Bane, Y. Ding, Z. Huang, R. Iverson, T. Maxwell, G. Stupakov, L. Wang SLAC National Accelerator Laboratory, Menlo Park, CA 9425,
More informationUndulator radiation from electrons randomly distributed in a bunch
Undulator radiation from electrons randomly distributed in a bunch Normally z el >> N u 1 Chaotic light Spectral property is the same as that of a single electron /=1/N u Temporal phase space area z ~(/
More informationGeneration and characterization of ultra-short electron and x-ray x pulses
Generation and characterization of ultra-short electron and x-ray x pulses Zhirong Huang (SLAC) Compact XFEL workshop July 19-20, 2010, Shanghai, China Ultra-bright Promise of XFELs Ultra-fast LCLS Methods
More informationHigh Energy Photons at HI S
High Energy Photons at HIS Rob Pywell High Intensity Gamma Source Duke University Thanks to Dr. Ying Wu, Duke University, for supplying some of the information in this talk. Precision Photo-Reaction Measurements
More informationLow Emittance Storage Ring for Light Source. Sukho Kongtawong PHY 554 Fall 2016
Low Emittance Storage Ring for Light Source Sukho Kongtawong PHY 554 Fall 2016 Content Brightness and emittance Radiative effect and emittance Theory Theoretical Minimum Emittance (TME) cell Double-bend
More informationLaser-driven undulator source
Laser-driven undulator source Matthias Fuchs, R. Weingartner, A.Maier, B. Zeitler, S. Becker, D. Habs and F. Grüner Ludwig-Maximilians-Universität München A.Popp, Zs. Major, J. Osterhoff, R. Hörlein, G.
More information2. THE HIGS FACILITY 2.1 The Free-Electron Laser Source
2. THE HIGS FACILITY 2.1 The Free-Electron Laser Source In recent years the development of intense, short-wavelength storage ring FELs has created an opportunity for the development of intense high-energy
More informationIntroduction to Accelerator Physics CHESS & LEPP
1 Introduction to Accelerator Physics Content 1. A History of Particle Accelerators 2. E & M in Particle Accelerators 3. Linear Beam Optics in Straight Systems 4. Linear Beam Optics in Circular Systems
More informationLOLA: Past, present and future operation
LOLA: Past, present and future operation FLASH Seminar 1/2/29 Christopher Gerth, DESY 8/5/29 FLASH Seminar Christopher Gerth 1 Outline Past Present Future 8/5/29 FLASH Seminar Christopher Gerth 2 Past
More informationPotential use of erhic s ERL for FELs and light sources ERL: Main-stream GeV e - Up-gradable to 20 + GeV e -
Potential use of erhic s ERL for FELs and light sources Place for doubling energy linac ERL: Main-stream - 5-10 GeV e - Up-gradable to 20 + GeV e - RHIC Electron cooling Vladimir N. Litvinenko and Ilan
More informationStatus of Fast Ion Instability Studies
Zur Anzeige wird der QuickTime Dekompressor TIFF (Unkomprimiert) benötigt. Status of Fast Ion Instability Studies Guoxing Xia presented by E. Elsen European LC Workshop, Jan 8-9, 2007, Daresbury 0 Ion
More informationInvestigation of the Feasibility of a Free Electron Laser for the Cornell Electron Storage Ring and Linear Accelerator
Investigation of the Feasibility of a Free Electron Laser for the Cornell Electron Storage Ring and Linear Accelerator Marty Zwikel Department of Physics, Grinnell College, Grinnell, IA, 50 Abstract Free
More informationTowards an Undulator Based NLC Positron Source
Towards an Undulator Based NLC Positron Source Tuesday June 26, 2002 LCD Meeting, SLAC R. Pitthan and J. Sheppard Contacts Roger Carr, SSRL Max Cornacchia, SSRL Ralph Nelson, SLAC RP Roman Tatchyn, SSRL
More informationDavid Martin High Precision Beamline Alignment at the ESRF IWAA, Grenoble 3-7 October 2016
David Martin High Precision Beamline Alignment at the ESRF IWAA, Grenoble 3-7 October 2016 OVERVIEW The ESRF has just completed the Phase I Upgrade programme. The Phase I Upgrade programme was centered
More informationPlans for CESR (or Life Without CLEO)
CESR-c Plans for CESR (or Life Without CLEO) Mark A. Palmer David L. Rubin Second ILC Accelerator Workshop August 18, 2005 2 Outline CESR-c/CLEO-c Schedule Preliminary Concept Possibilities for CESR as
More informationTrends in X-ray Synchrotron Radiation Research
Trends in X-ray Synchrotron Radiation Research Storage rings Energy Recovery Linacs (ERL) Free Electron Lasers Jochen R. Schneider DESY Development of the brilliance of X-ray sources Since the discovery
More informationWG2 on ERL light sources CHESS & LEPP
Charge: WG2 on ERL light sources Address and try to answer a list of critical questions for ERL light sources. Session leaders can approach each question by means of (a) (Very) short presentations (b)
More informationWigglers for Damping Rings
Wigglers for Damping Rings S. Guiducci Super B-Factory Meeting Damping time and Emittance Increasing B 2 ds wigglers allows to achieve the short damping times and ultra-low beam emittance needed in Linear
More informationPolarimetry. POSIPOL 2011 Beijing Peter Schuler (DESY) - Polarimetry
Polarimetry Overview Compton Transmission Polarimetry at source energy Bhabha Polarimetry at 400 MeV Compton Polarimetry at 5 GeV Compton Polarimetry at full energy 1 Suitable Processes Compton Transmission
More informationInvestigation of Coherent Emission from the NSLS VUV Ring
SPIE Accelerator Based Infrared Sources and Spectroscopic Applications Proc. 3775, 88 94 (1999) Investigation of Coherent Emission from the NSLS VUV Ring G.L. Carr, R.P.S.M. Lobo, J.D. LaVeigne, D.H. Reitze,
More informationExperiments on deflection of charged particles using silicon crystals at. Proton Synchrotron (KEK(
Experiments on deflection of charged particles using silicon crystals at REFER ring (Hiroshima( University) and Proton Synchrotron (KEK( KEK) S. Sawada KEK High Energy Accelerator Research Organization
More informationLECTURE 18. Beam loss and beam emittance growth. Mechanisms for beam loss. Mechanisms for emittance growth and beam loss Beam lifetime:
LCTUR 18 Beam loss and beam emittance growth Mechanisms for emittance growth and beam loss Beam lifetime: from residual gas interactions; Touschek effect; quantum lifetimes in electron machines; Beam lifetime
More informationRadiation shielding for undulator beamline in Indus-2 synchrotron radiation source
Radiation shielding for undulator beamline in Indus-2 synchrotron radiation source P. K. Sahani 1,5, A. K. Das 2, Haridas G. 3, A. K. Sinha 4,5, B. N. Rajasekhar 2,5, T. A. Puntambekar 1 and N K Sahoo
More informationOBSERVATION OF TRANSVERSE- LONGITUDINAL COUPLING EFFECT AT UVSOR-II
OBSERVATION OF TRANSVERSE- LONGITUDINAL COUPLING EFFECT AT UVSOR-II The 1st International Particle Accelerator Conference, IPAC 10 Kyoto International Conference Center, May 23-28, 2010 M. Shimada (KEK),
More informationOn Permanent Magnet Material Testing. 1. Permanent Magnet magnetization.
July 3 2006 CBN06-2 On Permanent Magnet Material Testing. Alexander Temnykh, LEPP, Ithaca, NY, 14853 Abstract. Note describes two experiments made to explore basic properties of permanent magnet (PM) material
More informationMULTI-DIMENSIONAL FREE-ELECTRON LASER SIMULATION CODES: A COMPARISON STUDY *
SLAC-PUB-9729 April 2003 Presented at 21st International Conference on Free Electron Laser and 6th FEL Applications Workshop (FEL 99, Hamburg, Germany, 23-28 Aug 1999. MULTI-DIMENSIONAL FREE-ELECT LASER
More informationP-Carbon CNI Polarimeter Operation Experience
P-Carbon CNI Polarimeter Operation Experience, A. Poblaguev, D. Steski, K. Yip, A. Zelenski Brookhaven National Laboratory, Upton, NY 11973, USA E-mail: huanghai@bnl.gov The p-carbon polarimeter working
More informationHarmonic Lasing Self-Seeded FEL
Harmonic Lasing Self-Seeded FEL E. Schneidmiller and M. Yurkov FEL seminar, DESY Hamburg June 21, 2016 In a planar undulator (K ~ 1 or K >1) the odd harmonics can be radiated on-axis (widely used in SR
More information