Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Riitta Zilliacus"'
Publikováno v:
Kalilainen, J, Kärkelä, T, Zilliacus, R, Tapper, U, Auvinen, A & Jokiniemi, J 2014, ' Chemical reactions of fission product deposits and iodine transport in primary circuit conditions ', Nuclear Engineering and Design, vol. 267, pp. 140-147 . https://doi.org/10.1016/j.nucengdes.2013.11.078
The objective of this work was to examine the chemical reactions taking place on primary circuit surfaces and their effect on fission product transport in a severe nuclear reactor accident. Especially transport of gaseous and aerosol phase iodine was
Autor:
Teemu Kärkelä, Ari Auvinen, Taeko Shinonaga, David Donohue, Fabien Pointurier, Olivier Marie, Helmut Aigner, Riitta Zilliacus, Dilani Klose, Stefan Bürger
Publikováno v:
Shinonaha, T, Donohue, D, Aigner, H, Bürger, S, Klose, D, Kärkelä, T, Zilliacus, R, Auvinen, A, Marie, O & Pointurier, F 2012, ' Production and characterization of plutonium dioxide particles as a quality control material for safeguards purposes ', Analytical Chemistry, vol. 84, no. 6, pp. 2638-2646 . https://doi.org/10.1021/ac202502z
Plutonium (Pu) dioxide particles were produced from certified reference material (CRM) 136 solution (CRM 136-plutonium isotopic standard, New Brunswick Laboratory, Argonne, IL, U.S.A., 1987) using an atomizer system on December 3, 2009 after chemical
Autor:
Jukka Lehto, Riitta Zilliacus, S. Pulli, Tarvainen M, A. Ossintsev, S. Ristonmaa, Susanna Salminen, Jussi Paatero, V. Larin, Timo Jaakkola, I. Outola
Publikováno v:
Lehto, J, Salminen, S, Jaakkola, T, Outola, I, Pulli, S, Paatero, J, Tarvainen, M, Ristonmaa, S, Zilliacus, R, Ossintsev, A & Larin, V 2006, ' Plutonium in the air in Kurchatov, Kazakhstan ', Science of the Total Environment, vol. 366, no. 1, pp. 206-217 . https://doi.org/10.1016/j.scitotenv.2005.08.012
Weekly air samples of 25 000 m3 volume were taken with two air samplers over a period of one year in 2000–2001 in the town of Kurchatov in Kazakhstan. For another three-month period in 2001, the samplers were run in the city of Astana, about 500 km
Publikováno v:
Backman, U, Lipponen, M, Auvinen, A, Tapper, U, Zilliacus, R & Jokiniemi, J K 2005, ' On the transport and speciation of ruthenium in high temperature oxidising conditions ', Radiochimica Acta, vol. 93, no. 5, pp. 297-304 . https://doi.org/10.1524/ract.93.5.297.64280
Summary In this paper, the transport and speciation of ruthenium under conditions simulating an air ingress accident was studied. Ruthenium dioxide was exposed to an oxidising environment at high temperatures (>1200 °C) in a tubular flow furnace. At
Autor:
Tarja K. Ikäheimonen, K Vesterbacka, M. Kettunen, S. Klemola, T Honkamaa, S Ristonmaa, Riitta Zilliacus, Antti Kosunen, Vesa-Pekka Vartti, Roy Pöllänen, I Jokelainen, M. Hokkanen, Petri Sipilä
Publikováno v:
Pöllänen, R, Ikäheimonen, T, Klemola, S, Vartti, V-P, Vesterbacka, K, Ristonmaa, S, Honkamaa, T, Sipilä, P, Jokelainen, I, Kosunen, A, Zilliacus, R, Kettunen, M & Hokkanen, M 2002, ' Characterisation of projectiles composed of depleted uranium ', Journal of Environmental Radioactivity, vol. 64, no. 2-3, pp. 133-142 . https://doi.org/10.1016/S0265-931X(02)00044-9
Projectiles suspected to be composed of depleted uranium (DU) were found in Kosovo. Their properties were analysed using alpha and gamma ray spectrometry, mass spectrometry and electron microscopy. They were found to be composed of DU with small amou
Autor:
Jyrki Vähätalo, Markus Färkkilä, Inkeri Ruokonen, Martti Kulvik, Riitta Zilliacus, Juha Laakso, Merja Kallio
Publikováno v:
Europe PubMed Central
Laakso, J, Kulvik, M, Ruokonen, I, Vähätalo, J, Zilliacus, R, Färkkilä, M & Kallio, M 2001, ' Atomic emission method for total boron in blood during neutron-capture therapy ', Clinical Chemistry, vol. 47, no. 10, pp. 1796-1803 . < http://clinchem.aaccjnls.org/content/clinchem/47/10/1796.full.pdf >
Laakso, J, Kulvik, M, Ruokonen, I, Vähätalo, J, Zilliacus, R, Färkkilä, M & Kallio, M 2001, ' Atomic emission method for total boron in blood during neutron-capture therapy ', Clinical Chemistry, vol. 47, no. 10, pp. 1796-1803 . < http://clinchem.aaccjnls.org/content/clinchem/47/10/1796.full.pdf >
Background: Boron neutron-capture therapy (BNCT) is a drug-targeted binary radiotherapy for cancer. The 10B capture of thermal neutrons induces secondary radiation within cells during irradiation. The most widely used boron carrier is 4-dihydroxybory
Publikováno v:
Auvinen, A, Lehtinen, K, Enriques, J, Jokiniemi, J & Zilliacus, R 2000, ' Vaporisation rates of CsOH and CsI in conditions simulating a severe nuclear accident ', Journal of Aerosol Science, vol. 31, no. 9, pp. 1029-1043 . https://doi.org/10.1016/S0021-8502(00)00027-6
The vaporisation rates of volatile fission product compounds are critical parameters for modelling aerosol formation following a severe nuclear accident. The vaporisation of CsOH and CsI was studied in a pure steam atmosphere at ambient pressure (85
Publikováno v:
Mäkynen, J, Jokiniemi, J, Ahonen, P, Kauppinen, E & Zilliacus, R 1997, ' AHMED experiments on hygroscopic and inert aerosol behaviour in LWR containment conditions : Experimental results ', Nuclear Engineering and Design, vol. 178, no. 1, pp. 45-59 . https://doi.org/10.1016/S0029-5493(97)00174-X
Hygroscopic NaOH, CsI, CsOH and inert Ag aerosol behaviour at different temperatures and relative humidities (RH) has been studied in a well instrumented and controlled vessel of 1.81 m3 total free volume. Homogeneous thermal-hydraulic conditions for
Autor:
Jarmo Vihersalo, Riitta Zilliacus, Simo Varjus, Pertti Nenonen, Ulla Ehrnstén, Helena Ronkainen
Publikováno v:
Ronkainen, H, Vihersalo, J, Varjus, S, Zilliacus, R, Ehrnsten, U & Nenonen, P 1997, ' Improvement of a-C:H film adhesion by intermediate layers and sputter cleaning procedures on stainless steel, alumina and cemented carbide ', Surface and Coatings Technology, vol. 90, no. 3, pp. 190-196 . https://doi.org/10.1016/S0257-8972(96)03131-3
The adhesion of amorphous hydrogenated carbon (a-C:H) films deposited in a radio frequency (r.f.) plasma discharge on stainless steel, alumina and cemented carbide with different intermediate layers (Ni, Ti and TiC) and sputter cleaning procedures wa
Publikováno v:
Rosenberg, R, Zilliacus, R, Lakomaa, E-L, Rautiainen, A & Mäkelä, A 1996, ' Study of CdTe/CdS-thin films by isotope dilution, neutron activation analysis, inductively coupled plasma mass spectrometry and secondary ion mass spectrometry ', Fresenius' Journal of Analytical Chemistry, vol. 354, no. 1, pp. 6-10 . https://doi.org/10.1007/s002169600001
Thin polycrystalline CdTe films can be used as materials for solar cells. The CdTe surface is etched with H3PO4/HNO3 solution to remove soluble Cd compounds and to leave insoluble Te compounds on the surface and thus creating a layer between CdTe and