Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-10T11:48:59.294Z Has data issue: false hasContentIssue false
  • English
  • Français

Digital autoradiography on C-14-labelled PMMA impregnated rock samples using the BeaverTM

Published online by Cambridge University Press:  26 February 2018

Mikko Voutilainen ,
Juuso Sammaljärvi ,
Eveliina Muuri ,
Jérôme Donnard ,
Samuel Duval  and
Marja Siitari-Kauppi
Mikko Voutilainen*
Affiliation:
Department of Chemistry, University of Helsinki, 00014, Helsinki, Finland.
Juuso Sammaljärvi
Affiliation:
Department of Chemistry, University of Helsinki, 00014, Helsinki, Finland.
Eveliina Muuri
Affiliation:
Department of Chemistry, University of Helsinki, 00014, Helsinki, Finland.
Jérôme Donnard
Affiliation:
AI4R, 2 Alfred Kastler, 44307, Nantes, France.
Samuel Duval
Affiliation:
AI4R, 2 Alfred Kastler, 44307, Nantes, France.
Marja Siitari-Kauppi
Affiliation:
Department of Chemistry, University of Helsinki, 00014, Helsinki, Finland.
*
*(Email: ma.voutilainen@helsinki.fi)
Get access

Abstract

In Finland and Sweden the KBS-3 concept has been chosen for the disposal of spent nuclear fuel in crystalline rock. Recent experiments have shown that heterogeneity of rock may play a major role in the transport of radionuclides. Autoradiographic methods have been proven to be able to assist the characterization of heterogeneous structures. In this study we tested a novel filmless autoradiographic device called BeaverTM which applies a micro patterned gaseous detector in order to quantitatively map beta emissions from C-14 atoms. The studied samples were impregnated with C-14-labelled methylmethacrylate (C-14-MMA) and polymerized to C-14-PMMA with thermal initiator. The BeaverTM was then used to determine the spatial distribution of the C-14-PMMA by measuring the C-14 emissions. The porosity is determined from the amount of C-14-PMMA in the rock sample and results were compared to ones from phosphor imaging plate autoradiography. The resulting images show a heterogeneous distribution of porosity which arises from the different minerals. The samples were chosen from three sites that have been used recently for in situ diffusion experiments: Olkiluoto (Finland), Äspö (Sweden) and Grimsel (Switzerland).

Keywords

microstructureporositygeologic
Type
Articles
Information
MRS Advances , Volume 3 , Issue 21: Scientific Basis for Nuclear Waste Management XLI , 2018 , pp. 1161 - 1166
Copyright
Copyright © Materials Research Society 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

References:

Sammaljärvi, J., Lindberg, A., Voutilainen, M., Ikonen, J., Siitari-Kauppi, M., Pitkänen, P., Koskinen, L., J. Radioanal. Nucl. Chem. 314 (3), 1557–1575 (2017).CrossRefGoogle Scholar
Sardini, P., Caner, L., Mossler, P., Mazurier, A., Hellmuth, K.-H., Graham, R. C., Rossi, A. M., Siitari-Kauppi, M., J. Radioanal. Nucl. Chem. 303, 11–23 (2015).CrossRefGoogle Scholar
Sardini, P., Angileri, A., Descostes, M., Duval, S., Oger, T., Patrier, P., Rividi, N., Siitari-Kauppi, M., Toubon, H., Donnard, J., Nucl. Instrum. Meth. A 833, 15–22 (2016).Google Scholar
Donnard, J., Berny, R., Carduner, H., Leray, P., Morteau, E., Provence, M., Servagent, N., Thers, D., Nucl. Instrum. Meth. A 610, 158–160 (2009).CrossRefGoogle Scholar
Donnard, J., Thers, D., Servagent, N., Luquin, L., IEEE T. Nucl. Sci. 56(1), 197–200 (2009).CrossRefGoogle Scholar
Delayre, C., Sammaljärvi, J., Billon, S., Muuri, E., Sardini, P., Siitari-Kauppi, M., Comparison of Storage phosphor autoradiography and Micro pattern gas detector based Electronic autoradiography for the porosity characterisation of hydrothermally altered samples from Petite-Anse, Martinique, submitted to publication.Google Scholar
Voutilainen, M., Kekäläinen, P., Siitari-Kauppi, M., Sardini, P., Muuri, E., Timonen, J., Martin, A., Water Resour. Res. 53, 9245–9265 (2017).CrossRefGoogle Scholar
Jokelainen, L., Meski, T., Lindberg, A., Soler, J., Siitari-Kauppi, M., Martin, A., Eikenberg, J., J. Radioanal. Nucl. Chem. 295, 2153–2161 (2013).Google Scholar
Nilsson, K., Byegård, J., Selnert, E., Widestrand, H., Höglund, S., Gustafsson, E., SKB Report R-10–68 (2010).Google Scholar
Poteri, A., Nilsson, K., Andersson, P., Siitari-Kauppi, M., Helariutta, K., Voutilainen, M., Kekäläinen, P., Ikonen, J., Sammaljärvi, J., Lindberg, A., Byegård, J., Skålberg, M., Kuva, J., Timonen, J., Koskinen, L., Posiva Working Report 2017-23 (2017).Google Scholar