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Article
Preliminary evaluation of SEM/EDS technique for the determination of colloid diffusion coefficient in granite matrix
Colloids present high sorption for many solutes and are considered potential contaminant carriers in geological environments. Experimental quantitative data are required for an adequate description of colloid-...
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Article
Determination of plutonium-241 in low-level radwastes using radiochemical separation combined with LSC, alpha spectrometer and ICP-MS
Two kinds of measuring methods were described for the determination of Plutonium-241 in low level wastes in this study. Plutonium isotopes were separated and purified by highly selective UTEVA and TRU resin. L...
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Article
Investigation into bentonite colloid sorption behavior of cesium using batch tests
In this study, we characterized the physical properties of bentonite colloids, conducted stability tests, and examined the effects of the colloids on the sorption of radionuclides in groundwater (Cs-137). The ...
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Article
Experimental and numerical investigations of 99TcO4− diffusion in compacted SPV 200 bentonite
Diffusion characteristics in bentonite are essential to quantify the transport of radionuclides through buffer/backfill materials in waste repositories. This study employs through-diffusion techniques to inves...
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Article
Analysis of 63Ni in radwastes by extraction chromatography and radiometric techniques
In this study, a practical method for the determination of 63Ni in radwaste samples was established. The results showed that the condition of duplicate elution with the Ni-resin column and the presence of the car...
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Article
Diffusion characteristics of HTO and 99TcO4 − in compacted Gaomiaozi (GMZ) bentonite
The characteristics of diffusion are essential to the transport of radionuclides through buffer/backfill materials, such as bentonite, which are commonly found in waste repositories. This study used through-d...
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Article
Determination of sorption and diffusion parameters of 99Tc in crushed granite using through-diffusion experiments
Diffusion and sorption are important processes associated with radionuclides migration in crystalline rock. These processes are studied in the laboratory using borehole core samples. In this study, we obtained...
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Article
Characterization of crud deposited on fuel rods under HWC environment in Kuosheng Nuclear Power Plant
Under normal water chemistry conditions, the oxygen and hydrogen peroxide produced by water radiolysis in the coolant of boiling water reactors (BWRs) can lead to intergranular stress corrosion cracking in the...
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Article
Determination of ultratrace-levels of 99Tc in low-level radioactive waste samples using ICP-QMS
This paper proposes a rapid, accurate method of measuring 99Tc in low-level radioactive waste using microwave digestion, TEVA resin for chemical separation, and inductively coupled plasma-quadrupole mass spectrom...
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Article
Characterization of corrosion products deposited on fuel rods in a boiling water reactor (BWR-6) plant using hydrogen water chemistry (HWC)
The objective of this paper was to characterize the corrosion products deposited on fuel cladding surfaces under hydrogen water chemistry (HWC) conditions in the boiling water reactor unit of a nuclear power p...
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Article
Chemical and radiochemical analysis of corrosion products on BWR fuel surfaces
This paper aimed at the characterization of the metallic composition and surface analysis of fuel rod Chalk River Unidentified Deposit (crud) for a BWR-6 unit at a nuclear power plant. In this study, inductive...
