Merja Tanhua-Tyrkkö

20082020
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Research Output 2008 2020

  • 6 Article
  • 4 Conference article in proceedings
  • 2 Conference abstract in proceedings
  • 1 Other conference contribution
2020

Determination of 14C, 55Fe, 63Ni and gamma emitters in activated RPV steel samples: a comparison between calculations and experimental analysis

Leskinen, A., Salminen-Paatero, S., Räty, A., Tanhua-Tyrkkö, M., Iso-Markku, T. & Puukko, E., 1 Jan 2020, In : Journal of Radioanalytical and Nuclear Chemistry. 323, 1, p. 399-413 15 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Steel
Steel structures
Chemical activation
Calibration
Detectors
2018

Environmental radiation survey prior to FiR1 research reactor decommissioning

Leskinen, A., Tanhua-Tyrkkö, M., Kekki, T. & Airila, M., 6 Jul 2018, Cores Symposium on Radiation in the Environment: Scientific Achievements and Challenges for the Society. Salomaa, S., Lusa, M. & Vaaramaa, K. (eds.). Säteilyturvakeskus, p. 124-130 (STUK-A; No. A261).

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Open Access
1 Citation (Scopus)

Preliminary Waste Characterization Measurements in FiR 1 TRIGA Research Reactor Decommissioning Project

Räty, A., Kekki, T., Tanhua-Tyrkkö, M., Lavonen, T. & Myllykylä, E., 3 Aug 2018, In : Nuclear Technology. 203, 2, p. 205-220 16 p.

Research output: Contribution to journalArticleScientificpeer-review

Decommissioning (nuclear reactors)
decommissioning
Research reactors
reactors
Graphite
2017
2 Citations (Scopus)

Direct alpha spectrometry for analysing leached ThO2 pellets

Myllykylä, E., Koivula, L., Tanhua-Tyrkkö, M., Helariutta, K., Lavonen, T., Ollila, K. & Siitari-Kauppi, M., 1 Sep 2017, In : Journal of Nuclear Materials. 493, p. 69-76 8 p.

Research output: Contribution to journalArticleScientificpeer-review

pellets
Spectrometry
Dissolution
Mixed oxide fuels
Nuclear energy
2015

Modeling transport of water, ions, and chemical reactions in compacted bentonite: comparison among toughreact, numerrin, and comsol multiphysics

Itälä, A., Laitinen, M., Tanhua-Tyrkkö, M. & Olin, M., 2015, In : Nuclear Technology. 187, 2, p. 169-174

Research output: Contribution to journalArticleScientificpeer-review

Bentonite
Chemical reactions
Ions
Water
Groundwater flow
2014

Effect of layer charge on the swelling of Na+, K+, Cs+ and Ca2+ -montmorillonites: a molecular dynamics simulation

Seppälä, A., Puhakka, E. & Tanhua-Tyrkkö, M., 2014, IMA 2014 Abstract Volume. Geological Society of South Africa/Geologiese Vereniging van Suid-Afrika, p. 12 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Open Access
swelling
molecular dynamics
cans
montmorillonite
bentonite
2013
4 Citations (Scopus)

Dissolution experiments of Na- and Ca-montmorillonite in groundwater simulants under anaerobic conditions

Myllykylä, E., Tanhua-Tyrkkö, M., Bouchet, A. & Tiljander, M., 2013, In : Clay Minerals. 48, 2, p. 295-308 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Bentonite
montmorillonite
anoxic conditions
Groundwater
Dissolution
8 Citations (Scopus)

Dissolution rate of alpha-doped UO2 in natural groundwater

Ollila, K., Myllykylä, E., Tanhua-Tyrkkö, M. & Lavonen, T., 2013, In : Journal of Nuclear Materials. 442, 1-3, p. 320-325 5 p.

Research output: Contribution to journalArticleScientificpeer-review

ground water
Groundwater
dissolving
Dissolution
Radiolysis
2012
1 Citation (Scopus)

Alteration and dissolution of Na-montmorillonite in simulated groundwaters

Myllykylä, E., Tanhua-Tyrkkö, M. & Bouchet, A., 2012, MRS Proceedings: Symposium NW – Scientific Basis for Nuclear Waste Management XXXV. Materials research society, p. 329-334 (Materials Research Society Symposia Proceedings, Vol. 1475).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

montmorillonite
dissolution
smectite
groundwater
X-ray diffraction
2010

COMSOL multiphysics, TOUGHREACT and Numerrin comparison in some modelling task of spent nuclear fuel disposal

Itälä, A., Laitinen, M., Tanhua-Tyrkkö, M., Pulkkanen, V-M. & Olin, M., 2010, COMSOL Conference 2010 Paris: User presentations and proceedings . COMSOL, 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access
Spent fuels
Nuclear fuels
Bentonite
Parameterization
Ion exchange
2009

Modeling the Interaction Between Compacted Bentonite Clay and Hyperalkaline Solution

Tanhua-Tyrkkö, M., Olin, M. & Lehikoinen, J., 2009, Proceedings of the TOUGH Symposium 2009: September 14—16, 2009. Berkeley, p. 277-282

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
bentonite
clay
repository
modeling
mineral alteration

Using COMSOL for the Transport Modelling of Some Special Cases in a Bentonite Buffer in a Final Repository for Spent Nuclear Fuel

Olin, M., Pulkkanen, V-M., Seppälä, A., Saario, T., Itälä, A., Tanhua-Tyrkkö, M. & Liukkonen, M., 2009, COMSOL Conference 2009 Milan. User Presentations and proceedings, CD. COMSOL, 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Open Access
bentonite
repository
modeling
wetting
bedrock
2008

Thermo-Hydro-Mechanical-Chemical (TMHC) modeling of the bentonite barriers in final disposal of high level nuclear waste

Olin, M., Tanhua-Tyrkkö, M., Pulkkanen, V-M., Itälä, A-K., Rasilainen, K., Seppälä, A. & Liukkonen, M., 2008.

Research output: Contribution to conferenceOther conference contributionScientific