Muutke küpsiste eelistusi

Physics of Synchrotron Radiation [Pehme köide]

(Conseil Européen de Recherches Nucléaires, Geneva)
This book explains the underlying physics of synchrotron radiation and derives its main properties. It is divided into four parts. The first covers the general case of the electromagnetic fields created by an accelerated relativistic charge. The second part concentrates on the radiation emitted by a charge moving on a circular trajectory. The third looks at undulator radiation, covering plane weak undulators, strong undulators and other more general undulators. The final part deals with applications and investigates the optics of synchrotron radiation dominated by diffraction due to the small opening angle. It also includes a description of electron storage rings as radiation sources and the effect of the emitted radiation on the electron beam. This book provides a valuable reference for scientists and engineers in the field of accelerators, and all users of synchrotron radiation.

Arvustused

'Hofmann's treatment grows steadily from a fundamental consideration of electric and magnetic fields due to a moving charge (the Liénard-Wiechert equations) to a complete exposition of the topic. The methodologies used are consistent throughout helping to reinforce the basic tenets of synchrotron radiation theory and its application to both continuously bent and undulating electron beam configurations. The Physics of Synchrotron Radiation is an advanced level text that would make a fine companion to many of its subject contemporaries as a rigorous treatment of the fundamentals of synchrotron radiation.' Contemporary Physics

Muu info

Comprehensive coverage of the underlying physics, with applications, for graduates and researchers.
Preface xvii
Acknowledgments xix
Notation xx
Part I Introduction
1(54)
A qualitative treatment of synchrotron radiation
3(6)
Introduction
3(1)
The opening angle
3(1)
The spectrum emitted in a long magnet
4(1)
The spectrum emitted in a short weak magnet
5(1)
The wave front of synchrotron radiation
6(2)
The polarization
8(1)
Fields of a moving charge
9(31)
Introduction
9(1)
The particle motion relevant to the retarded potentials
9(2)
The retarded electromagnetic potentials
11(3)
The fields of a moving charge
14(4)
A discussion of the field equations
18(2)
Examples
20(14)
The field of a charge moving with constant velocity
20(7)
The field of a non-relativistic oscillating charge
27(7)
The near field and the far field
34(1)
The Fourier transform of the radiation field
35(5)
The Fourier integral of the field
35(2)
The periodic motion
37(1)
The motion with a periodic velocity
38(2)
The emitted radiation field and power
40(15)
Introduction
40(1)
The emitted and received powers
41(1)
Transverse and longitudinal acceleration
42(6)
The transverse acceleration
42(3)
The longitudinal acceleration
45(3)
The ultra-relativistic case for transverse acceleration
48(3)
The angular spectral energy and power density
51(4)
Part II Synchrotron radiation
55(60)
Synchrotron radiation: basic physics
57(24)
Introduction
57(1)
The geometry and approximations
58(7)
The particle motion
58(1)
The dipole approximation
59(2)
The relevant motion
61(1)
The ultra-relativistic approximation
62(3)
The continuous spectrum radiated on a circular arc
65(3)
The Fourier-transformed field
65(2)
The spectral power density of the radiation
67(1)
The radiation emitted on a circular arc in the time domain
68(5)
The radiation field in the time domain
68(3)
The radiated energy and power in the time domain
71(1)
The radiation field in the time and frequency domains
72(1)
The line spectrum radiated on closed circles
73(8)
The relevant motion
73(1)
The line spectrum of the electric field
74(3)
The power of the line spectrum
77(2)
The relation between the continuous and the line spectra
79(2)
Synchrotron radiation: properties
81(34)
Introduction
81(1)
The total radiated power and energy
81(2)
The angular spectral distribution
83(6)
The general distribution
83(2)
The distribution at low frequencies
85(4)
The distribution at high frequencies
89(1)
The spectral distribution
89(5)
The general spectrum
89(3)
The spectrum at low frequencies
92(1)
The spectrum at high frequencies
92(1)
The spectrum integrated up to a given frequency
92(1)
The integral over all frequencies
93(1)
The angular distribution
94(4)
The angular distribution as a function of frequency
94(2)
The frequency-integrated angular distribution
96(2)
The polarization
98(12)
The description of linear and circular polarization
98(4)
The linear polarization
102(3)
The elliptical polarization
105(5)
The photon distribution
110(5)
Part III Undulator radiation
115(112)
A qualitative treatment
117(9)
Introduction
117(1)
The interference
118(2)
The undulator radiation as a wave front
120(1)
The modulation of the emitted field
121(1)
The weak undulator in the laboratory and moving frames
121(2)
The strong undulator in the laboratory and moving frames
123(1)
The helical undulator
124(1)
Undulators and related devices
124(2)
The plane weak undulator
126(28)
The trajectory
126(5)
The equation of motion
126(2)
The approximation for a weak undulator
128(1)
The observation from a large distance
129(1)
The ultra-relativistic approximation
130(1)
The particle motion in the moving system
131(1)
The radiation field
131(7)
The field calculated from the Lienard-Wiechert equation
131(1)
The undulator field as Lorentz-transformed dipole radiation
132(3)
The undulator radiation in the frequency domain
135(1)
A discussion of the weak-undulator radiation field
136(2)
Properties of weak-undulator radiation
138(10)
The energy and power radiated in an undulator
138(1)
The angular spectral power distribution
139(2)
The angular power distribution
141(5)
The spectral power distribution
146(2)
The photon distribution
148(6)
The number and energy of photons
148(3)
The photon spectrum
151(1)
The angular spectral photon distribution
151(1)
The undulator radiation on the axis
152(2)
The plane strong undulator
154(27)
The trajectory
154(8)
The trajectory in the laboratory frame
154(3)
The trajectory in the moving frame
157(2)
The relevant motion in a strong undulator
159(3)
The radiation from a plane strong undulator
162(5)
The radiation field
162(5)
Properties of strong-undulator radiation
167(14)
The angular spectral power distribution
167(1)
The angular power distribution
168(3)
The spectral density of the radiation
171(1)
The power contained in each harmonic
171(2)
The properties of the radiation on the axis
173(4)
The development with respect to K*u
177(4)
The helical undulator
181(25)
The trajectory
181(4)
The radiation emitted in a helical weak undulator
185(2)
The radiation obtained with the Lienard-Wiechert formula
185(2)
Properties of weak-helical-undulator radiation
187(6)
The total power
187(1)
The angular spectral power distribution
187(1)
The angular power distribution
188(1)
The spectral power distribution
189(1)
The total radiation
190(1)
The degree of circular polarization
190(2)
The on-axis radiation
192(1)
The radiation field from a strong helical undulator
193(4)
Properties of strong-helical-undulator radiation
197(9)
The total power
197(1)
The angular spectral power distribution
197(1)
The angular power distribution
198(1)
The spectral density of helical-undulator radiation
198(2)
The on-axis radiation
200(2)
The development with respect to K*uh
202(4)
Wiggler magnets
206(3)
Introduction
206(1)
The wavelength shifter
206(1)
The multipole wiggler
207(2)
Weak magnets - a generalized weak undulator
209(18)
Properties of weak-magnet radiation
209(4)
Introduction
209(1)
The trajectory
210(1)
The radiation from weak magnets
210(3)
Short magnets
213(2)
Introduction
213(1)
Qualitative properties of the short-magnet radiation
213(2)
The modulated undulator radiation
215(9)
Introduction
215(1)
The undulator of finite length
216(3)
The undulator radiation with amplitude modulation
219(2)
The undulator radiation with Lorentzian modulation
221(3)
The Compton back scattering and quantum correction
224(3)
Part IV Applications
227(73)
Optics of SR -- imaging
229(15)
Imaging with SR -- a qualitative treatment
229(3)
The limitation on resolution caused by diffraction and the depth-of-field effect
229(1)
Diffraction and the depth-of-field effect for SR from long magnets
230(1)
Diffraction and the depth-of-field effect for undulator radiation
231(1)
Diffraction and the depth-of-field effect for short-magnet radiation
231(1)
Discussion
232(1)
Imaging with SR -- a quantitative treatment
232(12)
The Fraunhofer diffraction
232(3)
The emittance of a photon beam
235(1)
The diffraction of synchrotron radiation emitted in long magnets
236(3)
The diffraction of undulator radiation
239(3)
The diffraction for the undulator with a Lorentzian profile
242(1)
A comparison of the properties of beams from various sources
243(1)
Electron-storage rings
244(27)
Introduction
244(4)
Lattice magnets
245(3)
The transverse particle dynamics in a storage ring
248(16)
The particle dynamics over many revolutions
248(8)
The beam with many particles
256(2)
The dispersion
258(1)
The chromatic aberrations and their correction with sextupoles
259(2)
Coupling and vertical dispersion
261(1)
An example: The FODO lattice
261(3)
The longitudinal particle dynamics
264(7)
Introduction
264(2)
The longitudinal focusing -- small amplitudes
266(2)
The longitudinal focusing -- large amplitudes
268(3)
Effects of radiation on the electron beam
271(15)
The energy loss
271(1)
The radiation damping
272(7)
Introduction
272(2)
The damping of synchrotron oscillations
274(1)
The damping of vertical betatron oscillations
274(2)
The damping of horizontal betatron oscillations
276(2)
The sum of the damping rates
278(1)
The quantum excitation of oscillations
279(3)
Introduction
279(1)
The energy spread
280(1)
The horizontal emittance
280(1)
The vertical emittance
281(1)
A summary of the effects of radiation on the electron beam
282(2)
Changing effects of radiation with wiggler magnets
284(2)
Radiation emitted by many particles
286(14)
Effects of the electron distribution on the radiation
286(2)
Introduction
286(1)
The radiation geometry in the case of a large electron emittance
286(2)
The electron and natural photon emittances are of the same magnitude
288(1)
The spatial coherence
288(2)
The diffraction limit
288(1)
Small-emittance rings
289(1)
The temporal coherence
290(5)
Flux and brightness
295(1)
The synchrotron radiation emitted by protons and ions
296(4)
Introduction
296(1)
The radiation from protons
296(1)
The radiation from ions
297(3)
Airy functions
300(8)
Definitions and developments
300(1)
Integrals involving Airy functions
301(7)
Bessel functions
308(5)
General relations
308(1)
The approximation for large order and arguments
309(1)
Sums over squares of Bessel functions
310(2)
Series of Bessel functions
312(1)
Developments of strong-undulator radiation
313(3)
The plane-undulator radiation
313(1)
The helical-undulator radiation
314(2)
References 316(5)
Index 321


Albert Hofmann received his Doctorate in physics from the ETH (Swiss Federal Institute of Technology) in Zurich, in 1964. From 1966 to 1972 he was a Research Fellow at the Cambridge Electron Accelerator, a joint laboratory of Harvard University and MIT. He then spent the next ten years working as Senior Physicist at CERN, Geneva. In 1983 he became a professor at Stanford University, working on the Stanford Linear Collider (SLC) and on optimising the storage rings SPEAR and PEP for synchrotron radiation use. He spent two years as head of the SLAC beam dynamics group. He then returned to CERN, in 1987, and was jointly responsible for the commissioning of the Large Electron Positron ring LEP. After its completition, he worked on accelerator physics problems with this machine up until his retirement from CERN in 1998. Over the years Professor Hofmann has done consulting work for other machines, such as the European Synchrotron Radiation Facility (ESRF), the Synchrotron Radiation Research Center (SRRC) in Taiwan and the Swiss Light Source (SLS). He has taught in over 25 short-term schools on accelerator physics and synchrotron radiation, and has published numerous papers. In 1992 he was elected to become a Fellow of the American Physical Society, in 1996 he received the Robert Wilson Prize from this Society and in 2001 he obtained the degree Dr. Honoris Causa from the University of Geneva.