Absorption of the energy of ?-radiation from a unidirectional point source of ?-quanta, in plane geometry

1966 ◽  
Vol 21 (3) ◽  
pp. 855-857
Author(s):  
F. A. Makhlis ◽  
L. A. Sugak ◽  
E. A. Plandin ◽  
I. K. Shmyrev
Keyword(s):  
Point Source ◽  
Plane Geometry ◽  
Unidirectional Point Source

Adiabatic modes for a point source in a plane‐geometry ocean

1994 ◽  
Vol 96 (3) ◽  
pp. 1918-1921 ◽  
Author(s):  
Michael B. Porter
Keyword(s):  
Point Source ◽  
Plane Geometry

Computation of the radiation field of a unidirectional point source of fast electrons by the Monte Carlo method

1976 ◽  
Vol 41 (6) ◽  
pp. 1069-1070
Author(s):  
A. V. Plyasheshnikov ◽  
A. M. Kol'chuzhkin
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Point Source ◽  
Radiation Field ◽  
Fast Electrons ◽  
The Monte Carlo Method ◽  
Unidirectional Point Source

scholarly journals New Theoretical Model of the Irradiance Distribution in Water from a Unidirectional Point Source

2020 ◽  
Vol 8 (2) ◽  
pp. 79 ◽  
Author(s):  
Lev S. Dolin
Keyword(s):  
Mathematical Model ◽  
Optical Properties ◽  
Point Source ◽  
Light Beam ◽  
Stationary Radiation ◽  
Narrow Light Beam ◽  
Scattering Phase ◽  
Scattering Phase Function ◽  
Modulated Light ◽  
Unidirectional Point Source

Formulas are presented for calculating the irradiance field, which is formed in a turbid medium with a narrow scattering phase function and homogeneous optical properties when an infinitely narrow light beam passes through it. The calculations are based on a new mathematical model of the stationary radiation field of an omnidirectional point source and relationships enabling one to represent the irradiance distribution in a continuous or modulated light beam through this field. The obtained formulas, in contrast to the previously known ones, permit taking into account the temporal spreading of a pulsed light beam in the sea without a significant decrease in the accuracy of describing its spatial structure.

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.

Surface fields excited by a vertical electric point source located on a conducting concave spherical surface

1981 ◽  
Vol 64 (9) ◽  
pp. 79-88 ◽  
Author(s):  
Kazuyoshi Inami ◽  
Kunio Sawaya ◽  
Yasuto Mushiake
Keyword(s):  
Point Source ◽  
Spherical Surface ◽  
Surface Fields

Giant Magnetoresistance Properties of Spin Valve Films in Current-perpendicular-to-plane Geometry.

2001 ◽  
Vol 25 (4−2) ◽  
pp. 807-810 ◽  
Author(s):  
K. Nagasaka ◽  
Y. Seyama ◽  
Y. Shimizu ◽  
A. Tanaka
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Plane Geometry ◽  
Current Perpendicular To Plane

Review of Current Situation of Agricultural Non-Point Source Pollution and Its Prevention and Control Technologies

2018 ◽  
Vol 20 (5) ◽  
pp. 23
Author(s):  
Shuxia Wu ◽  
Hongbin Liu ◽  
Shen Liu ◽  
Yaosheng Wang ◽  
Baojing Gu ◽  
...  
Keyword(s):  
Point Source ◽  
Prevention And Control ◽  
Current Situation ◽  
Point Source Pollution ◽  
Control Technologies ◽  
And Control ◽  
Non Point Source Pollution
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