LCLS Conceptual Design Report - Stanford Synchrotron Radiation ...

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A.4.1.2 Electron Beam Optics L C L S C O N C E P T U A L D E S I G N R E P O R T Parameter Name Low Energy High Energy All Energies Unit Focusing method separated function Focusing scheme FODO Quadrupole length 5 cm Quadrupole type permanent magnet Focussing quadrupole gradient 107.1 T/m Defocussing quadrupole gradient 105.9 T/m Start section length (cells 01-03) 22.288 m Superperiod length (cells 04-06 etc.) 22.050 m Total length of undulator focussing lattice 121.513 m Total number of focussing cells 16.5 Cell 01 length 7.463 m Cell 02 length 7.514 m Cell 03 length 7.311 m Cell 04 length 7.311 m Cell 05 length 7.428 m Cell 06 length 7.311 m Cell 07 length 7.311 m Cell 08 length 7.428 m Cell 09 length 7.311 m Cell 10 length 7.311 m Cell 11 length 7.428 m Cell 12 length 7.311 m Cell 13 length 7.311 m Cell 14 length 7.428 m Cell 15 length 7.311 m Cell 16 length 7.311 m Cell 17 length 3.714 m Ave beta-function 7.3 18.0 m/rad Max beta-function 12.4 21.9 m/rad Min beta-function 2.5 14.0 m/rad Beta-function modulation 68 22 % Phase advance per cell 83 25 degrees A-18 ♦ P A R A M E T E R T A B L E S
L C L S C O N C E P T U A L D E S I G N R E P O R T A.4.1.3 Electron Trajectory Correction Parameter Name Low Energy High Energy All Energies Unit Trajectory correction scheme quadrupole displacement Center distance between steering quads 3.59 - 3.78 m Number of steering quadrupoles 33 Max. transverse quad displacement 500 µm Max. kick angle from focussing quadrupole 177 55 µrad Max. kick angle from defocussing 175 55 µrad Number of carbon wire stations 10 A.4.1.4 Beam-Based-Alignment Parameter Name Low Energy High Energy All Energies Unit BPM rms resolution 1 µm BPM offsets (uncorrelated) 50 µm BPM offsets (correlated) 300 µm BPM mean calibration errors 10 % BPM rms calibration errors 3 % Quadrupole offsets (uncorrelated) 50 µm Quadrupole offsets (correlated) 300 µm Mean beam energy error 2 % RMS beam energy error 0.5 % Quadrupole mean gradient error 0.3 % Quadrupole rms gradient error 0.3 % Undulator pole errors 0.04 % Mover mean calibration errors 5 % Mover rms calibration errors 3 % Incoming trajectory bias 10 sigma Incoming orbit jitter 0 - 0.1 sigma A.4.1.5 Electron Beam at Entrance Parameter Name Low Energy High Energy All Energies Unit Initial electron energy 4.54 14.35 GeV Initial normalized projected emittance 1.6 1.6 µm rad Initial normalized slice emittance 1.2 1.2 µm rad Initital total energy spread 0.08 0.03 % Initial slice energy spread 0.018 0.006 % Initial rms bunch length 23 23 mm Initial fwhm bunch duration 230 230 fs Initial pulse charge 1 1 nC Initial peak current 3400 3400 A Initial longitudinal slice brightness 854 747 A P A R A M E T E R T A B L E S♦ A-19
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Linac Coherent Light Source (LCLS)
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L C L S C O N C E P T U A L D E S I
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Preface This Conceptual Design Repo
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Table of Contents 1 Executive Summa
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6. Two experiment halls L C L S C O
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2.7.1.7 Conventional Facilities L C
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3 TECHNICAL SYNOPSIS Scientific Bas
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5 TECHNICAL SYNOPSIS FEL Parameters
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and the total peak beam power L C L
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5.4.2.2 Case II - High Charge Limit
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∆P ∆I sat pl / P / I sat pk L C
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5.9 Summary L C L S C O N C E P T U
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6 Injector TECHNICAL SYNOPSIS The i
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εn,x (µm) 4 3 2 1 4-2001 8560A95
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Quantum Yield (electrons/photon) 10
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Bz (T) 0.3 0.2 0.1 1-2002 8560A92 L
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Master Clock 9.917 MHz x8 x6 x6 Df
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1-2002 8560A198 Linac Center Line L
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B z (kG) 3 2 1 4-2001 8560A91 L C L
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γε x,y (µm) 3 2 1 0 3-2001 8560A
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γεx,y (µm) yn 10 0 -10 -10 0 10
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σ γ /γ 0 (percent) ∆N/N 0.02 0
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5 0 -5 5 0 -5 5 0 -5 L C L S C O N
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Table 6.5 PARMELA Output Parameters
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gama x (micro.m) 3 2 1 0 0 L C L S
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∆E/E 0 (%) ∆N/N 0 -1 -2 0.02 0
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〈∆E/E 0 〉 /% I pk /I pk0 0.1
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β (m) 35 30 25 20 15 10 5 0 K21_1B
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β (m) 60 50 40 30 20 10 0 L C L S
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economic reasons. L C L S C O N C E
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Phase [deg. S-band] L C L S C O N C
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New Solid-State Sub-Booster and Ele
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7.8.2 Bunch Length Diagnostics L C
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Magnet String Location Existing, Ne
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8.1 Overview 8.1.1 Introduction L C
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Mu in the pole, for mu
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Gasload (Torr-l/sec-cm) (x10 -12 )
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8.10.4 Conclusion L C L S C O N C E
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x θ j > 0 L C L S C O N C E P T U
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Quad ∆X/µm Quad ∆Y/µm −500
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∆X/µm ∆Y/µm L C L S C O N C E
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8.13.2 Undulator Cell Structure L C
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9.2 Layout and Optics 9.2.1 Experim
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Fast Valve L C L S C O N C E P T U
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0.01 10 -4 10 -6 10 -8 10 -10 10 -1
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Table 9.5 Mirror requirements L C L
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Refractive Focusing System L C L S
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Pulse Split/Delay L C L S C O N C E
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Figure 9.20 LCLS Ion Chamber L C L
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9.4.3.2 Pulse Length L C L S C O N
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9.4.3.6 Divergence L C L S C O N C
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10 Conventional Facilities TECHNICA
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1-2002 8560A198 Linac Center Line L
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Figure 10.6 Near hall floor plan 10
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11 Controls TECHNICAL SYNOPSIS The
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11.5.3 Motion Controls L C L S C O
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12.1 Procedural Overview L C L S C
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13 Environment, Safety and Health a
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Table 13-1 Hazard Identification an
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Page 515 and 516: 15 TECHNICAL SYNOPSIS Work Breakdow
Page 519 and 520: A A.1 FEL-Physics A.1.1 Performance
Page 521 and 522: A.2 Photo-Injector A.2.1 Gun-Laser
Page 523 and 524: A.2.3.2 Electron Beam L C L S C O N
Page 525 and 526: A.2.4.7 Vacuum L C L S C O N C E P
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Page 543 and 544: B Control Points B.1 Injector Contr
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