Modelling the radionuclide migration field experiment at the Grimsel test site
Description
In the migration experiment at the Grimsel Test Site, the nature of nuclide transport through fractured crystalline rock is being investigated. The model developed at PSI to analyse migration field measurements is presented and applied to recent experimental results. It is capable of describing the main features of nuclide transport. Having calibrated the model with a non-sorbing tracer, it is possible to fit it onto measurements for the weakly sorbing 22Na and the more strongly sorbing 85Sr using the sorption constant as the only free parameter. Sorption constants determined from the field experiment are consistent with complementary laboratory experiments, giving support to the possibility of predicting the effects of sorption on the field scale (metres), based on measurements on the laboratory scale (centimetres). The results of the Grimsel migration experiment are an important contribution to confidence in both the model and data. (author) 4 figs., 1 tab., 12 refs
Additional details
Publishing Information
- Publisher
- Paul Scherrer Institut.
- Imprint Place
- Villigen PSI (Switzerland)
- Imprint Title
- Paul Scherrer Institut annual report 1991
- Imprint Pagination
- 74 p.
- Journal Page Range
- p. 47-51.
- Report number
- INIS-mf--13348
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- Switzerland
- INIS RN
- 23076372
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S58: GEOSCIENCES;
- Resource subtype / Literary indicator
- Numerical Data, Progress Report
- Descriptors DEI
- CHEMISORPTION; EXPERIMENTAL DATA; GEOLOGIC FRACTURES; GRANITES; MATHEMATICAL MODELS; PROGRESS REPORT; RADIOACTIVE WASTE DISPOSAL; RADIONUCLIDE MIGRATION; SODIUM 22; STRONTIUM 85; SWITZERLAND; THEORETICAL DATA; TRACER TECHNIQUES; UNDERGROUND DISPOSAL
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CHEMICAL REACTIONS; DATA; DAYS LIVING RADIOISOTOPES; DEVELOPED COUNTRIES; ELECTRON CAPTURE RADIOISOTOPES; ENVIRONMENTAL TRANSPORT; EUROPE; EVEN-ODD NUCLEI; GEOLOGIC STRUCTURES; HOURS LIVING RADIOISOTOPES; IGNEOUS ROCKS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; LIGHT NUCLEI; MANAGEMENT; MASS TRANSFER; NANOSEC LIVING RADIOISOTOPES; NUCLEI; NUMERICAL DATA; ODD-ODD NUCLEI; PLUTONIC ROCKS; RADIOISOTOPES; ROCKS; SEPARATION PROCESSES; SODIUM ISOTOPES; SORPTION; STRONTIUM ISOTOPES; WASTE DISPOSAL; WASTE MANAGEMENT; YEARS LIVING RADIOISOTOPES