scholarly journals AW ANALOG METHOD FOR MEASURING THE LONGITUDINAL COUPLING IMPEDANCE OF A RELATIVISTIC PARTICLE BEAM WITH ITS ENVIRONMNET

1971 ◽  
Author(s):  
A. Faltens ◽  
E.C. Hartvig ◽  
D. Mohl ◽  
A.M. Sessler
Keyword(s):  
Relativistic Particle ◽  
Particle Beam ◽  
Coupling Impedance ◽  
Analog Method

scholarly journals Vortex Accretion Funnel / Relativistic Beam Models of Double Radio Sourci

1982 ◽  
Vol 97 ◽  
pp. 237-238
Author(s):  
H. A. Scott ◽  
R. V. E. Lovelace
Keyword(s):  
Angular Momentum ◽  
Relativistic Particle ◽  
Particle Beam ◽  
Power Source ◽  
Radio Sources ◽  
Relativistic Beam ◽  
Consistent Model ◽  
Self Consistent

A consistent model of extra-galactic double radio sources must evidently involve all aspects of the source from the underlying power source to the production of the radio lobes. Here, we give an overview of our work on the different aspects of a self-consistent model which includes gravitational accretion of fluid with angular momentum as the power source, the production of hydrodynamic or relativistic particle-beam jets, and the formation of expanding radio components.

Longitudinal coupling impedance for particle beams with Gaussian charge distributions in the longitudinal and transverse directions

2010 ◽  
Vol 88 (8) ◽  
pp. 597-605
Author(s):  
Sondos Okoor ◽  
A. M. Al-Khateeb ◽  
I. M. Odeh
Keyword(s):  
Wall Thickness ◽  
Skin Penetration ◽  
Particle Beam ◽  
Skin Depth ◽  
Coupling Impedance ◽  
Particle Beams ◽  
Cylindrical Pipe ◽  
Low Frequencies ◽  
Wall Conductivity ◽  
Resistive Wall

The longitudinal coupling impedance is obtained analytically for a smooth and resistive cylindrical pipe of finite wall thickness. We assumed a particle beam with Gaussian charge distribution in the longitudinal and transverse directions. For wall thicknesses d less than the skin depth, the impedance increases because of coupling with the vacuum outside the pipe, while for thicknesses d nearly of the order of the skin depth, the impedance becomes independent of the wall thickness. The resistive wall impedance decreases with increasing wall conductivity and it has its maximum values at low frequencies. By increasing beam energies, the space charge impedance decreases while the resistive wall contribution increases. Gaussian and uniform beams have nearly the same impedance at low energy, independent of the wall thickness, while at higher energies obvious differences are observed at wall thicknesses below the skin penetration depth.

scholarly journals High energy Coulomb-scattered electrons for relativistic particle beam diagnostics

2016 ◽  
Vol 19 (4) ◽  
Author(s):  
P. Thieberger ◽  
Z. Altinbas ◽  
C. Carlson ◽  
C. Chasman ◽  
M. Costanzo ◽  
...  
Keyword(s):  
Relativistic Particle ◽  
Particle Beam ◽  
High Energy ◽  
Beam Diagnostics
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