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Author: Theofilos Kotseroglou
Publisher:
ISBN:
Category :
Languages : en
Pages : 518
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Book Description
Author: Theofilos Kotseroglou
Publisher:
ISBN:
Category :
Languages : en
Pages : 518
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
This experiment tests Quantum Electrodynamics in the strong field regime. Nonlinear Compton scattering has been observed during the interaction of a 46.6 GeV electron beam with a 10[sup 18] W/cm[sup 2] laser beam. The strength of the field achieved was measured by the parameter [eta] = e[var-epsilon][sub rms]/[omega]mc = 0.6. Data were collected with infrared and green laser photons and circularly polarized laser light. The timing stabilization achieved between the picosecond laser and electron pulses has [sigma][sub rms] = 2 ps. A strong signal of electrons that absorbed up to 4 infrared photons (or up to 3 green photons) at the same point in space and time, while emitting a single gamma ray, was observed. The energy spectra of the scattered electrons and the nonlinear dependence of the electron yield on the field strength agreed with the simulation over 3 orders of magnitude. The detector could not resolve the nonlinear Compton scattering from the multiple single Compton scattering which produced rates of scattered electrons of the same order of magnitude. Nevertheless, a simulation has studied this difference and concluded that the scattered electron rates observed could not be accounted for only by multiple ordinary Compton scattering; nonlinear Compton scattering processes are dominant for n [ge] 3.
Author: Arne Müller
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Frank Wissmann
Publisher: Springer Science & Business Media
ISBN: 9783540407423
Category : Science
Languages : en
Pages : 170
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Book Description
A comprehensive summary of experiments on Compton scattering from the proton and neutron performed at the electron accelerator MAMI. The experiments cover a photon energy range from 30 MeV to 500 MeV. The reader is introduced to the theoretical concepts of Compton scattering, followed by a description of the experiments on the proton, their analysis and results.
Author: Dietrich Krebs
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: T. Kotseroglou
Publisher:
ISBN:
Category :
Languages : en
Pages : 127
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Book Description
This experiment tests Quantum Electrodynamics in the strong field regime. Nonlinear Compton scattering has been observed during the interaction of a 46.6 GeV electron beam with a 10{sup 18} W/cm{sup 2} laser beam. The strength of the field achieved was measured by the parameter {eta} = e{var_epsilon}{sub rms}/{omega}mc = 0.6. Data were collected with infrared and green laser photons and circularly polarized laser light. The timing stabilization achieved between the picosecond laser and electron pulses has {sigma}{sub rms} = 2 ps. A strong signal of electrons that absorbed up to 4 infrared photons (or up to 3 green photons) at the same point in space and time, while emitting a single gamma ray, was observed. The energy spectra of the scattered electrons and the nonlinear dependence of the electron yield on the field strength agreed with the simulation over 3 orders of magnitude. The detector could not resolve the nonlinear Compton scattering from the multiple single Compton scattering which produced rates of scattered electrons of the same order of magnitude. Nevertheless, a simulation has studied this difference and concluded that the scattered electron rates observed could not be accounted for only by multiple ordinary Compton scattering; nonlinear Compton scattering processes are dominant for n {ge} 3.
Author: U. Mohideen
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
The relativistic motion and radiation spectrum of free electrons in the focus of an ultrashort high intensity laser pulse is solved. Motion and radiation of electrons in a novel axicon focus is also analyzed. We have calculated the radiation emitted from free electrons in an ultrashort pulsed laser focus. For low electron densities, where space charge is negligible, we find that ponderomotive forces limit the effective volume where the radiation is emitted to a region much smaller than the fundamental wavelength. Nonetheless, constructive interference plays a significant role in the collective radiation spectrum.
Author: THE MINDCARE INSTITUTE
Publisher:
ISBN: 9788994908120
Category :
Languages : en
Pages : 62
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 23
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Book Description
An overview of linear and nonlinear Compton scattering is presented, along with a comparison with Thomson scattering. Two distinct processes play important roles in the nonlinear regime: multi-photon interactions, leading to the generation of harmonics, and radiation pressure, yielding a downshift of the radiated spectral features. These mechanisms, their influence on the source brightness, and different modeling strategies are also briefly discussed.
Author: John A. Krommes
Publisher:
ISBN:
Category :
Languages : en
Pages : 46
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Book Description
