LCLS Conceptual Design Report - Stanford Synchrotron Radiation ...

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
2.10 Design Alternatives ......................................................................................................... 2-12
2.11 Principle of Operation ..................................................................................................... 2-12
2.12 Overall Layout................................................................................................................. 2-13
2.13 Performance Characteristics ............................................................................................ 2-14
2.14 The Photoinjector ............................................................................................................ 2-16
2.15 Compression and Acceleration ........................................................................................ 2-16
2.16 The Undulator.................................................................................................................. 2-16
2.17 The X-Ray Optics and Experimental Areas .................................................................... 2-17
2.18 Summary.......................................................................................................................... 2-17
2.19 References ....................................................................................................................... 2-18
3 Scientific Basis for Optical Systems
Technical Synopsis ....................................................................................................................... 3-1
3.1 Introduction ....................................................................................................................... 3-2
3.1.1 History of Scientific Interest in X-Ray Free Electron Lasers................................. 3-2
3.1.2 Unique Features of X-Ray FEL Radiation............................................................. 3-3
3.1.3 The Role of the LCLS ............................................................................................ 3-5
3.1.4 Science with X-Ray FELs...................................................................................... 3-6
3.2 Optical and Experimental Challenges................................................................................ 3-6
3.2.1 Focusing ................................................................................................................. 3-6
3.2.2 Monochromatization .............................................................................................. 3-6
3.2.3 Harmonic Control................................................................................................... 3-7
3.2.4 Photon Pulse Manipulation .................................................................................... 3-7
3.2.5 Synchronization of an External Source (Laser Pump) ........................................... 3-8
3.2.6 Detectors ................................................................................................................ 3-8
3.2.7 Summary ................................................................................................................ 3-8
3.3 References ......................................................................................................................... 3-9
4 FEL Physics
Technical Synopsis ....................................................................................................................... 4-1
4.1 Introduction ....................................................................................................................... 4-2
4.2 Free-electron Laser Physics............................................................................................... 4-4
4.2.1 Coherent Undulator Radiation from a Single Electron .......................................... 4-4
4.2.2 Coherent Spontaneous Radiation from Many Electrons ........................................ 4-6
4.2.3 SASE-FELs............................................................................................................ 4-7
4.2.4 Slippage, Fluctuations and Time Structure ............................................................ 4-9
4.2.5 Nonlinear Harmonic Generation ............................................................................ 4-9
4.2.6 Quantum Effects in Free-Electron Lasers ............................................................ 4-10
4.3 Experimental Results on SASE-FELs ............................................................................. 4-11
4.4 LCLS: An X-Ray SASE-FEL.......................................................................................... 4-15
4.5 Effects of Spontaneous Radiation.................................................................................... 4-19
4.6 Undulator Wakefields...................................................................................................... 4-19
T A B L E O F C O N T E N T S