Published 1981 | Version v1
Miscellaneous Restricted

First measurements and model calculations on the adsorption of radioactive nuclides to Aitken nucleus aerosols

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Description

From the viewpoint of disaster relief the knowledge of the adsorption coefficient as a function of aerosol size is important. Its theoretical assessment is only possible by completing diffusion theory with Fuchs' theory of limited spheres. To carry out the adsorption experiments SO4 particles were produced which, because of their high concentration, coagulated further to particles of the size 10-6 to 10-5. Proportionality to the surface of the particles is found. (DG)

Abstract (German)

Aus dem Blickwinkel des Katastrophenschutzes ist die Kenntnis des Anlagerungskoeffizienten als Funktion der Aerosolgroesse wichtig. Seine theoretische Abschaetzung kann nur durch eine Ergaenzung der Diffusionstheorie mit der Fuchs'-schen Grenzkugelmethode erfolgen. Zur Durchfuehrung der Anlagerungsexperimente wurden SO4-Partikel erzeugt, die aufgrund ihrer hohen Konzentration weiter zu Partikeln der Groesse von 10-6 bis 10-5 cm koagulierten. Ohne Beruecksichtigung von Bildladungskraeften ergibt sich eine Proportionalitaet mit der Oberflaeche der Partikel. (DG)

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Additional details

Additional titles

Original title (German)
Erste Messungen und Modellrechnungen zur Anlagerung radioaktiver Nuklide an Aitkenkern-Aerosole

Publishing Information

Imprint Title
Protection Commission of the Federal Minister of the Interior
Imprint Pagination
246 p.
Journal Page Range
p. 195-201.
Report number
INIS-mf--8763

Conference

Title
30. annual meeting of the Protection Commission of the Federal Minister of the Interior.
Dates
May 1981.
Place
Bonn (Germany, F.R.).

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
15027663
Subject category
S58: GEOSCIENCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ADHESION; AEROSOL GENERATORS; AEROSOLS; DIFFUSION; FISSION PRODUCTS; FLOCCULATION; MATHEMATICAL MODELS; PARTICLE SIZE; RADIOACTIVE AEROSOLS; RADIOISOTOPES; SEDIMENTATION; SURFACE PROPERTIES
Descriptors DEC
COLLOIDS; DISPERSIONS; ISOTOPES; MATERIALS; PRECIPITATION; RADIOACTIVE MATERIALS; SEPARATION PROCESSES; SIZE; SOLS

Optional Information

Notes
Imprint:Schutzkommission beim Bundesministerium des Innern.;Vortraege.