Collective Phenomena in Synchrotron Radiation Sources (eBook)

1987: graduation in nuclear physics at University Heidelberg1989-1993: working in elementary particle physics at DESY/Hamburg - participation in the ARGUS experiment1993-today:  working in accelerator physics, participation in design, construction and operation of the BESSY II synchrotron radiation source in Berlin,2003: Habilitation at the Humboldt-University Berlin

Preface 6
Contents 8
1 Introduction 12
1.1 Definition of the Topic 12
1.2 Outline 14
2 Collective Instabilities 15
2.1 Overview 15
2.2 The Frequency Spectrum of a Stored Beam 18
2.3 Wake Field and Impedance 28
2.4 Models of Instabilities 43
2.5 Natural Damping Mechanisms 59
2.6 Impedance Measurements Using the Beam 62
3 The Lifetime of a Stored Electron Beam 68
3.1 Overview 68
3.2 Quantum Lifetime 72
3.3 Residual Gas Scattering 73
3.4 The Touschek Effect 78
3.5 The Total Beam Lifetime 81
3.6 Experimental Determination of Loss Rates 83
4 Measures Against Collective Effects 88
4.1 Overview 88
4.2 Active Damping of Instabilities 94
4.3 Example of a Longitudinal Feedback System 97
4.4 Example of a Transverse Feedback System 112
4.5 Other Feedback Systems and New Developments 121
4.6 Higher-Harmonic Cavities 123
5 Conclusions and Outlook 128
5.1 Summary 128
5.2 Future Synchrotron Radiation Facilities 129
A Basic Relations in Accelerator Physics 136
A.1 General Conventions 136
A.2 Transverse Phase Space 138
A.3 Longitudinal Phase Space 143
B Third-Generation Synchrotron Radiation Sources 146
B.1 Overview 146
B.2 The Synchrotron Radiation Source BESSY II 147
C Longitudinal Instabilities: Vlasov Formalism 156
C.1 The Vlasov Equation 156
C.2 The Instability Model 157
D Beam Loading 160
D.1 Basic Relations 160
D.2 Applications 162
E Longitudinal and Transverse Kickers 167
E.1 Kicker Cavities 168
E.2 Stripline Kickers 171
F The Touschek Effect 174
F.1 Scattering in the Center-of-Momentum System 174
F.2 Loss Rate in the Laboratory System 175
G Ion Effects in Electron Storage Rings 179
G.1 Ionization and Ion Trapping 179
G.2 The "Fast” Beam–Ion Instability 181
H Address List 183
H.1 Accelerators and Storage Rings 183
H.2 Institutions 184
References 186
Index 205