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Abstract
The objective of the study has been to estimate the
residual activity in the decommissioning waste of the
TRIGA Mark II-type research reactor FiR 1 in Finland.
Neutron flux distributions were calculated with the Monte
Carlo code MCNP. These were used in the ORIGEN-S
point-depletion code to calculate the neutron-induced
activity of materials at different time points by
modeling irradiation history and radioactive decay.
Knowledge of the radioactive inventory of irradiated
materials is important in the planning of the
decommissioning activities and is essential for
predicting the radiological impact to personnel and the
environment. Decommissioning waste consists mainly of
ordinary concrete, aluminum, steel, and graphite parts.
Results include uncertainties due to assump-tions on
material compositions and lack of some detailed
operational history data. Comparison to activity
inventory estimates of two other decommissioned research
reactors is also presented.
Original language | English |
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Pages (from-to) | 28-38 |
Journal | Nuclear Technology |
Volume | 194 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2016 |
MoE publication type | A1 Journal article-refereed |
Keywords
- activity inventory
- decommissioning
- Triga research reactor
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Dive into the research topics of 'Fir 1 TRIGA activity inventories for decommissioning planning'. Together they form a unique fingerprint.Projects
- 1 Active
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Decommissioning of FiR 1 research reactor
Airila, M., Kotiluoto, P., Auterinen, I., Helin, J., Kekki, T., Kivelä, P., Koivuranta, S., Leskinen, A., Räty, A., Suolanen, V., Vento, S., Viitanen, P., Helynen, S., Nyman, T., Ruokola, E., Tanhua-Tyrkkö, M., Vanttola, T. & Vilkamo, O.
1/04/15 → 31/12/23
Project: Finnish government project