scholarly journals Radiation fields of a uniformly accelerating point source in the framework of Stueckelberg’s manifestly covariant relativistic dynamics

2010 ◽  
Vol 51 (5) ◽  
pp. 052903 ◽  
Author(s):  
I. Aharonovich ◽  
L. P. Horwitz
Keyword(s):  
Point Source ◽  
Relativistic Dynamics ◽  
Radiation Fields

Hertz tensor as a basis of relativistic subelectrodynamics

2021 ◽  
pp. 106-109
Author(s):  
V.A. Bordovitsyn ◽  
◽  
A.V. Kulikova ◽  
O. Tanaka ◽  
◽  
...  
Keyword(s):  
Point Source ◽  
Classical Theory ◽  
Magnetic Moment ◽  
Radiation Source ◽  
Charged Particles ◽  
Complete Theory ◽  
Radiation Fields ◽  
The Creation ◽  
Intrinsic Magnetic Moment ◽  
Field Strengths

The classical theory of radiation of charged particles is currently a complete theory. It has wide applications in the creation of various sources of radiation: synchrotron, undulator, etc. At the same time, the issues of radiation of the intrinsic magnetic moment of particles have not been fully investigated. In this paper, we describe a way to construct radiation fields of a point source within the framework of the Hertz tensor formalism. The derivation of the potentials and field strengths of a point radiation source is given.

XRMF applications of a monolithic, polycapillary, focusing x-ray optic

1996 ◽  
Vol 54 ◽  
pp. 240-241
Author(s):  
D. A. Carpenter ◽  
Ning Gao ◽  
G. J. Havrilla
Keyword(s):  
Trace Elements ◽  
Point Source ◽  
Focal Spot ◽  
Fluorescence Analysis ◽  
X Rays ◽  
Focal Distance ◽  
Spot Diameter ◽  
X Ray ◽  
Focal Spot Diameter

A monolithic, polycapillary, x-ray optic was adapted to a laboratory-based x-ray microprobe to evaluate the potential of the optic for x-ray micro fluorescence analysis. The polycapillary was capable of collecting x-rays over a 6 degree angle from a point source and focusing them to a spot approximately 40 µm diameter. The high intensities expected from this capillary should be useful for determining and mapping minor to trace elements in materials. Fig. 1 shows a sketch of the capillary with important dimensions.The microprobe had previously been used with straight and with tapered monocapillaries. Alignment of the monocapillaries with the focal spot was accomplished by electromagnetically scanning the focal spot over the beveled anode. With the polycapillary it was also necessary to manually adjust the distance between the focal spot and the polycapillary.The focal distance and focal spot diameter of the polycapillary were determined from a series of edge scans.

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