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The mass transport of radionuclides in a multilayered medium

Abstract

This document describes the mathematical formalism for calculating the rate of mass transport across interfaces in a multilayered medium for radionuclides in a decay chain. Two numerical algorithms have been developed, both based on Laplace transport techniques: a direct solution for concentrations and fluxes in a two-layer medium; and, an approximate solution based on a response function for the mass transport across a finite layer adjacent to a semi-infinite layer. A comparison of the two algorithms is presented. Results of sample calculations for a multilayered medium are also reported and compared with results based on the mass-transfer coefficient approximation.
Publication Date:
Jan 01, 1992
Product Type:
Technical Report
Report Number:
AECL-10384; COG-91-297.
Reference Number:
SCA: 540230; 990200; PA: AIX-23:034727; SN: 92000725045
Resource Relation:
Other Information: PBD: Jan 1992
Subject:
54 ENVIRONMENTAL SCIENCES; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; RADIONUCLIDE MIGRATION; MATHEMATICAL MODELS; AMERICIUM 241; DAUGHTER PRODUCTS; DECAY; NEPTUNIUM 237; THORIUM 230; URANIUM 234; 540230; 990200; RADIOACTIVE MATERIALS MONITORING AND TRANSPORT; MATHEMATICS AND COMPUTERS
OSTI ID:
10139662
Research Organizations:
Atomic Energy of Canada Ltd., Pinawa, MB (Canada). Whiteshell Nuclear Research Establishment; Ontario Hydro, Toronto, ON (Canada)
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE92625793; TRN: CA9200220034727
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
40 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Garisto, N C, LeNeveu, D M, and Garisto, F. The mass transport of radionuclides in a multilayered medium. Canada: N. p., 1992. Web.
Garisto, N C, LeNeveu, D M, & Garisto, F. The mass transport of radionuclides in a multilayered medium. Canada.
Garisto, N C, LeNeveu, D M, and Garisto, F. 1992. "The mass transport of radionuclides in a multilayered medium." Canada.
@misc{etde_10139662,
title = {The mass transport of radionuclides in a multilayered medium}
author = {Garisto, N C, LeNeveu, D M, and Garisto, F}
abstractNote = {This document describes the mathematical formalism for calculating the rate of mass transport across interfaces in a multilayered medium for radionuclides in a decay chain. Two numerical algorithms have been developed, both based on Laplace transport techniques: a direct solution for concentrations and fluxes in a two-layer medium; and, an approximate solution based on a response function for the mass transport across a finite layer adjacent to a semi-infinite layer. A comparison of the two algorithms is presented. Results of sample calculations for a multilayered medium are also reported and compared with results based on the mass-transfer coefficient approximation.}
place = {Canada}
year = {1992}
month = {Jan}
}