20 Result(s)

Article

Cesium sorption and diffusion on crystalline rock: Olkiluoto case study

The sorption and diffusion behavior of cesium was studied to support the interpretation of the ongoing in-situ experiments in the Olkiluoto test site. The distribution coefficients of cesium in the Olkiluoto p...

E. Muuri, M. Siitari-Kauppi, M. Matara-aho… in Journal of Radioanalytical and Nuclear Che… (2017)

Article

Chloride diffusion in pore water in Olkiluoto veined gneiss and pegmatitic granite from a structural perspective

Spent nuclear fuel from Finnish power plants is planned to be deposited deep in the crystalline bedrock in Olkiluoto, Finland. The bedrock and more specifically the elemental composition of ground water, which...

J. Sammaljärvi, J. Ikonen, M. Voutilainen, P. Kekäläinen, A. Lindberg… in MRS Advances (2016)

Article

Interfacial adaptation of a calcium aluminate cement used in class II cavities, in vivo

The aim of this in vivo study was to evaluate the interfacial marginal adaptation of a calcium aluminate cement, Doxadent (DD), and to compare it intra-individually with a resin composite, Tetric Ceram/Syntac ...

K. Sunnegårdh-Grönberg, J. W. V. van Dijken, A. Lindberg… in Clinical Oral Investigations (2004)

Article

Cesium Sorption on Tonalite and Mica Gneiss

Different approaches for measuring the interaction between radionuclides and rock matrix are needed to test the compatibility of transport models and retardation experiments. In this work sorption of cesium (¹³⁴C...

M. Siitari-Kauppi, P. Hölttä, S. Pinnioja, A. Lindberg in MRS Online Proceedings Library (1999)

Article

The Effect of Specific Surface Area on Radionuclide Sorption on Crushed Crystalline Rock

The sorption of sodium (²²Na), calcium (⁴⁵Ca) and strontium (⁸⁵Sr) was studied on mica gneiss, unaltered, moderately altered and strongly altered tonalite samples taken from hole SY-KR7 drilled in the Syyry area ...

P. Hölttä, M. Siitari-Kauppi, P. Huihuri, A. Lindberg… in MRS Online Proceedings Library (1996)

Article

Postglacial Matrix Diffusion in a Boulder Sample

A boulder sample was studied for its unusual U content Analyses of U-series nuclides within the rock matrix perpendicular to an assumed fracture face show abrupt pulse-like concentration distributions with ver...

K. Rasilainen, J. Suksi, K.-H. Hellmuth, A. Lindberg… in MRS Online Proceedings Library (1995)

Article

Laser-frequency stabilization using forward scattering

Frequency stabilization of a single-mode dye laser is demonstrated using a simple magneto-optical forward scattering method. The dye laser was locked to the 2p₄−3s_s2, λ = 633 nm neon transition. Heterodyne beat-f...

T. Fellman, Å. Lindberg, B. Ståhlberg in Applied Physics B (1994)

Article

Spatial uniformity of sediment accumulation in varved lake sediments in northern Sweden

As part of an investigation aimed at assessing the potential of northern Swedish varved lake sediments for fine-resolution reconstruction of past climatic conditions, the following questions were addressed; ho...

G. Petterson, I. Renberg, P. Geladi, A. Lindberg, F. Lindgren in Journal of Paleolimnology (1993)

Article

The Influence of a TiN Cap Layer on a Titanium-S Alici de Process: Titanium vs Titanium Nitride/Titanium

To minimize the bridging problem in the self-aligned titanium stltcide (SALICIDE) processes, a titanium nitride (TIN) cap has been suggested. The objective of this work was to study the impact of such a TIN ca...

S. -L. Zhang, W. Kaplan, M. Östling, H. Norström… in MRS Online Proceedings Library (1992)

Article

Applications of the Carbon-14-Polymethylmethacrylate (PMMA) Impregnation Method in Studies on Porosity and Matrix Diffusion

We are presenting applications of a new technique for the study of porosity and diffusivity in rocks employing impregnation with labeled polymethylmethacrylate. We studied samples of different rock types and r...

K-H. Hellmuth, M. Shtari-Kauppi, A. Lindberg in MRS Online Proceedings Library (1991)

Article

Nonlinear forward scattering of resonant laser light from excited neon systems

We investigate forward scattering induced by a powerful single mode dye laser interacting with excited neon systems. We present experimental data obtained with the three transitions: 1s ₄(J=1)-2p ₃(J=0), 1s ₂(J=1...

B. Ståhlberg, P. Jungner, T. Fellman, Å. Lindberg in Applied Physics B (1990)

Article

The Effect of Ground Water - Rock Interactions on the Migration of Redox Sensitive Radionuclides

Interactions of redox sensitive elements with common Finnish rocks were studied in the laboratory under oxic and anoxic conditions. Sorption and diffusion of technetium, uranium, plutonium and neptunium were s...

Seija Suksi, M. Siitari-Kauppi, E-L. Kämäräinen… in MRS Online Proceedings Library (1988)

Article

Pharmacokinetics of haloperidol in psychotic patients

Nine psychotic patients under continuous oral treatment with haloperidol were randomly given a test dose of 1.5–5 mg haloperidol orally and/or intravenously. Serum levels of haloperidol were determined by high...

Y. F. Cheng, Prof. Dr. L. K. Paalzow, U. Bondesson, B. Ekblom… in Psychopharmacology (1987)

Article

Accidental overdose of pyrimethamine and sulphadoxine for malaria prophylaxis without adverse effects

A. Lindberg, Y. Bergqvist, L. Rombo in European Journal of Clinical Pharmacology (1986)

Article

Sorption and Diffusion of Radionuclides in Rock Matrix and Natural Fracture Surfaces Studied by Autoradiography

A method based on autoradiography was developed to determine the sorption and diffusion of cesium, strontium, cobalt, nickel, iodine and americium into rock matrix. Samples chosen for this study were filled an...

S. Muuronen, E.-L. Kämäräinen, T. Jaakkola, S. Pinnioja… in MRS Online Proceedings Library (1985)

Article

Modellversuch zum Exponentialgesetz

K. Hecht, A. Lindberg in Naturwissenschaften (1959)

Article

Verwendung einer Savartschen Doppelplatte zur Herstellung eines phasengleichen Gesichtsfeldes

Das Interferenzstreifenbild einerSavartschen Doppelplatte zwischen gekreuzten Polarisatoren lä\t sich mittels einer Sammellinse und einer die Polarisationsebene um 45‡ drehenden Vorrichtung derart abbilden, da\ e...

A. Lindberg in Zeitschrift für Physik (1952)

Article

Über eine Resonanzerscheinung in elektrodenlosen Hochfrequenzgasentladungen mit überlagertem Magnetfeld

A. Lindberg, H. Neuert, H. Weidner in Naturwissenschaften (1952)