Coherent Bremsstrahlung of Electrons in Crystals

1969 ◽  
Vol 17 (12) ◽  
pp. 765-808 ◽  
Author(s):  
U. Timm
Keyword(s):  
Coherent Bremsstrahlung

Emission of radiation by particles in media with inhomogeneities and coherent bremsstrahlung

1990 ◽  
Vol 160 (4) ◽  
pp. 59 ◽  
Author(s):  
Konstantin Yu. Platonov ◽  
I.N. Toptygin ◽  
G.D. Fleishman
Keyword(s):  
Coherent Bremsstrahlung

Coherent bremsstrahlung peaks in X-ray microanalysis spectra

1983 ◽  
Vol 48 (4) ◽  
pp. L39-L43 ◽  
Author(s):  
J. C. H. Spence ◽  
G. Reese ◽  
N. Yamamoto ◽  
G. Kurizki
Keyword(s):  
X Ray ◽  
Coherent Bremsstrahlung

scholarly journals ON THE INFLUENCE OF ACOUSTIC WAVES ON COHERENT BREMSSTRAHLUNG IN CRYSTALS

2004 ◽  
Vol 19 (02) ◽  
pp. 99-109 ◽  
Author(s):  
A. A. SAHARIAN ◽  
A. R. MKRTCHYAN ◽  
V. V. PARAZIAN ◽  
L. SH. GRIGORYAN
Keyword(s):  
Differential Cross Section ◽  
Single Crystal ◽  
Cross Section ◽  
Differential Cross ◽  
Acoustic Waves ◽  
Crystallographic Axis ◽  
Relativistic Electrons ◽  
Sinusoidal Wave ◽  
Coherent Bremsstrahlung

We investigate the coherent bremsstrahlung by relativistic electrons in a single crystal excited by hypersonic vibrations. The formula for the corresponding differential cross-section is derived in the case of a sinusoidal wave. The conditions are specified under which the influence of the hypersound is essential. The case is considered in detail when the electron enters into the crystal at small angles with respect to a crystallographic axis. It is shown that in dependence of the parameters, the presence of hypersonic waves can either enhance or reduce the bremsstrahlung cross-section.

scholarly journals COHERENT BREMSSTRAHLUNG IN PERIODICALLY DEFORMED CRYSTALS WITH A COMPLEX BASE

2009 ◽  
Vol 23 (20n21) ◽  
pp. 2573-2584 ◽  
Author(s):  
A. R. MKRTCHYAN ◽  
A. A. SAHARIAN ◽  
V. V. PARAZIAN
Keyword(s):  
Differential Cross Section ◽  
Single Crystal ◽  
Cross Section ◽  
Differential Cross ◽  
High Energy ◽  
Deformation Field ◽  
Crystallographic Axis ◽  
High Energy Electrons ◽  
Coherent Bremsstrahlung

In the present paper, we investigate coherent bremsstrahlung of high energy electrons moving in a periodically deformed single crystal with a complex base. The formula for corresponding differential cross-section is derived for an arbitrary deformation field. The conditions are discussed under which the influence of the deformation is important. The case is considered in detail when the electron enters into the crystal at small angles with respect to a crystallographic axis. It is shown that in dependence of the parameters, the presence of the deformation can either enhance or reduce the bremsstrahlung cross-section.

THE SCIENCE OF CONFINEMENT AND THE GLUEX/HALL D PROJECT AT JEFFERSON LAB

2003 ◽  
Vol 18 (03) ◽  
pp. 397-404 ◽  
Author(s):  
Alex R. Dzierba
Keyword(s):  
Degrees Of Freedom ◽  
Meson Production ◽  
First Year ◽  
Jefferson Lab ◽  
Coherent Bremsstrahlung ◽  
Linearly Polarized ◽  
Quantitative Understanding ◽  
Current Maximum ◽  
Photo Production ◽  
Photoproduction Data

One of the outstanding and fundamental questions in physics is the quantitative understanding of the confinement of quarks and gluons in quantum chromodynamics (QCD). Confinement is a unique feature of QCD. Exotic hybrid mesons manifest gluonic degrees of freedom and their spectroscopy will provide the crucial data needed to test assumptions in lattice QCD and phenomenology leading to confinement. Photo-production is expected to be particularly effective in producing exotic hybrids but data using photon probes are sparse. At Jefferson Lab, plans are underway to use the coherent bremsstrahlung technique to produce a linearly polarized photon beam. A solenoid-based hermetic detector will be used to collected data on meson production and decays with statistics that will exceed the current photoproduction data in hand by several orders of magnitude after the first year of running. In order to reach the ideal photon energy of 9 GeV/c for this mapping of the exotic spectra, the energy of the Jefferson Lab electron accelerator, CEBAF, will be doubled from its current maximum of 6 GeV to 12 GeV. The physics and project are described.

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