Published July 21, 1980 | Version v1
Miscellaneous Restricted

Solution to the transport equation for electron backscattering on massive materials

Description

The scattering of a monoenergetic electron beam (Albedo problem) vertical to the plane of the boundary layer of a massive material is treated as transportproblem using the Boltzmann Transport Equation (BTE). The strong anistropic to 1 standardized differential effective cross section (DEC) of the single scattering of the electrons enters into the integral term. A complete, orthogonal set of solution units of the BTE can be given by a new type of approximation of the DEC in a generalization of a solution method from CASE 1960. By continuously changing an anisotropy parameter, the region of strong anisotropic and isotropic single scattering is simultaneously determined, the case results are taken as special case. (orig./RW)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Die Streuung eines monoenergetischen, senkrecht auf die ebene Grenzschicht eines massiven Materials treffenden Elektronenstrahls (Albedo-Problem) wird als Transportproblem mit der Boltzmannschen Transportgleichung (BTG) behandelt. In den Integralterm der BTG geht der stark anisotrope, auf 1 normierte differentielle Wirkungsquerschnitt (DWQ) der Elektroneneinzelstreuung ein. Durch eine neue Art der Approximation des DWQ laesst sich, in Verallgemeinerung eines von CASE 1960 angegebenen Loesungsverfahrens, ein vollstaendiger, orthogonaler Satz von Loesungsbausteinen der BTG angeben. Durch kontinuierliche Veraenderung eines Anisotropie-Parameters wird gleichzeitig der Bereich stark anisotroper und isotroper Einzelstreuung erfasst, die Caseschen Ergebnisse ordnen sich als Sonderfall ein. (orig./RW)

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Additional details

Additional titles

Original title (German)
Loesung der Transportgleichung fuer Elektronenrueckstreuung an massiven Materialien

Publishing Information

Imprint Pagination
153 p.
Report number
INIS-mf--6945

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
13663531
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
ALBEDO; ANGULAR DISTRIBUTION; ANISOTROPY; BACKSCATTERING; ELECTRON BEAMS; ISOTROPY; MILNE PROBLEM; REFLECTION; TRANSPORT THEORY
Descriptors DEC
BEAMS; DISTRIBUTION; LEPTON BEAMS; PARTICLE BEAMS; SCATTERING