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M. Z. Min, X. Z. Luo, J. Wang, et al., “Sorption Behavior of U(VI), U-234(VI) and U-238(VI) onto Fracture-Filling Clays in Beishan Granite, Gansu: Application to Selecting the Site of High-Level Radwaste Repository in China,” Science in China Series D: Earth Sciences, Vol. 48, No. 10, 2005, pp. 1649-1655. doi:10.1360/03yd0475

has been cited by the following article:

• TITLE: The Diffusion of Tc-99 in Beishan Granite-Temperature Effect

  AUTHORS: C. Li, Z. Zheng, X. Y. Liu, T. Chen, W. Y. Tian, L. H. Wang, C. L. Wang, C. L. Liu

  KEYWORDS: Diffusion; Technetium; Beishan Granite; Temperature Effect

  JOURNAL NAME: World Journal of Nuclear Science and Technology, Vol.3 No.1, January 30, 2013

  ABSTRACT: In the safety assessment of a potential site for high-level radioactive wastes (HLW) disposal, the investigation on the geochemical behaviors of key radionuclides with the possibility for releasing from the potential repository is an important aspect. Due to the high mobility of technetium under most repository conditions, lots of research works were performed to investigate the diffusion of technetium in different potential rocks. In spite of these studies, there remains a lack of data addressing temperature effects. In this paper, the diffusion of 99Tc in Beishan granite at temperatures from 25℃ to 55℃ was studied with laboratory small scale diffusion devices. The experimental data were fitted with a finite difference scheme to get the effective diffusion coefficient (De) of . The results indicated that the relationship of De with temperatures could be described as the modified Stokes-Einstein equation, and the formation factor of Beishan granite was constant in the temperature range of 25℃ - 55℃ with the value of (3.91 ± 1.77) × 10-4.