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Title: A numerical method for characterizing the time-dependent diffusion of radon in a porous material

Journal Article · · Geophysical Research Letters (American Geophysical Union); (United States)
DOI:https://doi.org/10.1029/93GL01657· OSTI ID:5056038
;  [1]
  1. National Tsing Hua Univ., Taiwan (Taiwan, Province of China)

This paper describes an experimental test of radon diffusion through a porous material, and a model created to calculate such diffusion. The material studied was Zeolite 4A, which was pressed into slab form, for used in diffusion measurements. The model is based on a nonlinear least squares and Marquardt method. The model has the advantage of giving diffusion results while the system is still in the transient state, and also offering a simpler calculational procedure.

OSTI ID:
5056038
Journal Information:
Geophysical Research Letters (American Geophysical Union); (United States), Vol. 20:24; ISSN 0094-8276
Country of Publication:
United States
Language:
English