Accession Number : ADA412079

Title :   Measurement of Ferric Ion Diffusion Coefficient in Fricke-Infused Agarose Gel From MR Image Intensity Changes

Descriptive Note : Conference paper

Corporate Author : NATIONAL YANG-MING UNIV TAIPEI (TAIWAN)

Personal Author(s) : Tseng, Yin-Jiun ; Chu, Woei-Chyn ; Huang, Sung-Cheng

PDF Url : ADA412079

Report Date : 25 OCT 2001

Pagination or Media Count : 5

Abstract : A mathematical modeling was adopted to calculate the ferric ion diffusion coefficient based on the radiation induced magnetic resonance (MR) image intensity change in Fricke-agarose gels. A fast magnetic resonance imaging acquisition technique was employed to avoid the smearing of acquired data due to diffusion over an extended period of time. Our results showed that for a Fricke-agarose gel contained 1mM ammonium ferrous sulfate, 1% agarose, 1mM sodium chloride and 50mM sulfuric acid, its ferric ion diffusion coefficient is 1.31x10(-2)cm(2)h(-1) in room temperature. This value falls within the 1 ^ 2x10(-2)cm(2)h(-1) range obtained by previous studies under varying concentrations of gel ingredients.

Descriptors :   *MAGNETIC RESONANCE, MATHEMATICAL MODELS, IONS, RADIATION, SYMPOSIA, PHOTOCHEMICAL REACTIONS, IRON COMPOUNDS, DIFFUSION COEFFICIENT, IRRADIATION, MEDICAL RESEARCH, GELS, TAIWAN, DOSIMETRY.

Subject Categories : Medicine and Medical Research
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE