P. Vontobel

The energy-selective option in neutron imaging (2009)

Lehmann, EH, Frei, G, Vontobel, P, Josic, L, Kardjilov, N, Hilger, A, ...

Reproduced from Vadose Zone Journal. Published by Soil Science Society of America. All copyrights reserved. Tomographical Imaging and Mathematical Description of Porous Media Used for the Prediction of Fluid Distribution (2008)

P. Lehmann, P. Wyss, A. Flisch, E. Lehmann, P. Vontobel, M. Krafczyk, ...

Flow and transport processes in porous media depend on the geometric properties of their pores, where the diameters typically range from micrometers to millimeters. In this study, we mapped the pore...

Energy-selective radiography at the pulsed neutron source ISIS (2008)

Kockelmann, W, Santisteban, JR, Frei, G, Lehmann, E, Vontobel, P

Assessment of structural evolution of aggregated soil using neutron tomography (2008)

Koliji, Azad, Lehmann, Peter, Vulliet, Laurent, Laloui, Lyesse, Carminati, A., Vontobel, P., ...

The advanced non-destructive method of neutron tomography, together with image analysis, is used to evaluate the structural evolution of an aggregated soil during one-dimensional compression tests....

Kinetics of hydrogen absorption and release in zirconium alloys during steam oxidation. (2008)

Grosse, M., Steinbrück, M., Lehmann, E., Vontobel, P.

Oxidation of Metals, 70(2008) S.149-62

Quantification of hydrogen uptake of steam-oxidized zirconium alloys by means of neutron radiography. (2008)

Grosse, M., Kühne, G., Steinbrück, M., Lehmann, E., Stuckert, J., Vontobel, P.

Journal of Physics: Condensed Matter, 20(2008) S.104263/1-7

Energy selective transmission imaging at a pulsed source (2007)

Kockelmann, W, Frei, G, Lehmann, EH, Vontobel, P, Santisteban, JR

Water flow between soil aggregates (2007)

Carminati, A., Kaestner, A., Ippisch, O., Koliji, A., Lehmann, P., Hassanein, R., ...

Preferential evaporation in the presence of textural contrasts (2007)

Lehmann, P., Shokri, N., Vontobel, P., Or, D.

Evaporation rates and drying front morphology in sand-filled Hele-Shaw cells under different boundary conditions observed with neutron transmission technique (2007)

Shokri, N., Lehmann, P., Vontobel, P., Or, D.

Three-dimensional petrographical investigations on borehole rock samples: a comparison between X-ray Computed- and Neutron Tomography (2007)

Christe, P., Bernasconi, M., Vontobel, P., Turberg, P., Parriaux, A.

Technical difficulties associated with excavation works in tectonized geological settings are frequent. They comprise instantaneous and/or delayed convergence, sudden collapse of gallery roof and/or...

Determination of the hydrogen uptake of steam-oxidised zirconium alloys by means of quantitative analysis of neutron radiographs. (2007)

Große, M., Steinbrück, M., Stuckert, J., Lehmann, E., Kühne, G., Vontobel, P.

European Conf.on Neutron Scattering (ECNS 2007), Lund, S, June 24-29, 2007

Experimental study of flow and deformation in aggregated soils using neutron tomography. (2006)

Koliji, A., Carminati, A., Kaestner, A., Vulliet, L., Laloui, L., Fluehler, H., ...

Tomographical imaging and mathematical description of porous media used for the prediction of fluid distribution (2006)

Lehmann, P., Wyss, P., Flisch, A., Lehmann, E., Vontobel, P., Krafczyk, M., ...

Chemical and morphological changes of historical lead objects as a result of the use of electrolytic reduction as a stabilization treatment (2006)

Schotte, Bart, Adriaens, Annemie, Dhooghe, Frederik, Depla, Diederik, Dierick, Manuel, DOWSETT, M, ...

Quantitative determination of absorbed hydrogen in oxidised zircaloy by means of neutron radiography. (2006)

Grosse, M., Lehmann, E., Vontobel, P., Steinbrueck, M.

Nuclear Instruments and Methods in Physics Research A, 566(2006) S.739-45

Application of an iterative artefact reduction method to neutron tomography (2005)

Kasperl, S., Vontobel, P.

An iterative method for artefact reduction in X-ray computed tomography is applied to neutron tomography data of a massive copper cylinder with a central conical bore. The acquired neutron...

Quantification of hydrogen content in zircaloy based nuclear fuel cladding by means of neutron imaging methods. (2005)

Große, M., Lehmann, E., Vontobel, P.

Internat.Workshop on Neutron Imaging Using Cold Neutrons and Related Topics, Villigen, CH, October 13-14, 2005 (Vortrag und Poster)

Laboratory visualization of two-phase flow in a natural fracture by neutron tomography (2003)

Lunati, I., Vontobel, P., Kinzelbach, W., Lehmann, E.

Visualization of water uptake and transmission in a granite sample by neutron tomography (2003)

Lunati, I., Vontobel, P., Kinzelbach, W., Lehmann, E.

New features in cold neutron radiography and tomography - Part II: applied energy-selective neutron radiography and tomography (2003)

KARDJILOV, N, BAECHLER, S, BASTURK, M, Dierick, Manuel, JOLIE, J, LEHMANN, E, ...

Complementary PET studies of striatal neuronal function in the differential diagnosis between multiple system atrophy and Parkinson's disease (1997)

Antonini, A, Leenders, KL, Vontobel, P, Maguire, RP, Missimer, J, Psylla, M, ...

Striatal glucose metabolism and dopamine D2 receptor binding in asymptomatic gene carriers and patients with Huntington's disease (1996)

Antonini, A., Leenders, K. L., Spiegel, R., Meier, D., Vontobel, P., Weigell-Weber, M., ...

We used PET scans with the tracers [18F]fluorodeoxyglucose (FDG) and [11C]raclopride (RACLO) to study glucose metabolism and dopamine D2 receptor binding in the caudate nucleus and putamen of 18...

Experimental research on the reactor physics and LOCA thermal-hydraulics of light water high conversion reactors. (1989)

Chawla, R., Berger, H.D., Dreier, J., Boehme, R., Bourquin, P., Brogli, R., ...

PSI Nuclear Energy Research Progress Report 1989