Concept

Médecine nucléaire

Publications associées (81)

Experimental Comparisons of 3D Reconstructed Pin-Power Distributions in Full-Scale BWR Fuel Assemblies

In this paper, reconstructed local fission rates obtained with the two-group nodal diffusion program PRESTO-2, used at the Leibstadt Nuclear Power Plant (KKL) in Switzerland, are compared with experimental results and MCNPX calculations. The experimental f ...

2011

Symbios SPS-standard and custom stem micromotion comparison by micro- CT imaging

Vu Thanh-Hieu Nguyen

The aim of this study is to compare the difference in µ-motion between a custom stem implant and a sps standard stem and assess the importance of patient specificity. A surgeon would implant 3 sps-standar stems and 3 custom stems in 6 cadaveric femurs. The ...

2010

Kinetics of Yttrium-Ligand Complexation Monitored Using Hyperpolarized 89Y as a Model for Gadolinium in Contrast Agents

Geoffrey Bodenhausen, Lothar Helm, Pascal Miéville, Sami Jannin

Hyperpolarization by dissolution dynamic nuclear polarization (DNP) enhances Y-89 spin magnetization by 3 to 4 orders of magnitude and provides a way to monitor yttrium-ligand complexation "on the fly" by means of Y-89 NMR. In this communication, we show a ...

American Chemical Society2010

An evaluation of the estimation of road traffic emission factors from tracer studies

Alain Clappier, Luis Carlos Belalcazar Ceron

Road traffic emission factors (EFs) are one of the main sources of uncertainties in emission inventories; it is necessary to develop methods to reduce these uncertainties to manage air quality more efficiently. Recently an alternative method has been propo ...

2010

See the Brain at Work—Intraoperative Laser Doppler Functional Brain Imaging

Michaël Unser, Dimitri Nestor Alice Van De Ville, Theo Lasser, Marcel Leutenegger, Rainer Leitgeb, Antonio Lopez, Erica Martin-Williams

During open brain surgery we acquire perfusion images non-invasively using laser Doppler imaging. The regions of brain activity show a distinct signal in response to stimulation providing intraoperative functional brain maps of remarkably strong contrast. ...

2009

Novel CMOS Analog Pulse Shaping Filter for Solid-State X-Ray Sensors in Medical Imaging Systems

Rafal Tomasz Dlugosz

A new idea as well as CMOS implementation of a pulse-shaping filter useful in nuclear medicine to realize a multi-element detection by means of a multi-channel readout front-end ASIC have been presented. The filter changes the shape of pulses delivered by ...

Springer-Verlag2009

JET (He-3)-D scenarios relying on RF heating: survey of selected recent experiments

Alessandro Marinoni

Recent JET experiments have been devoted to the study of (He-3)-D plasmas involving radio frequency (RF) heating. This paper starts by discussing the RF heating efficiency theoretically expected in such plasmas, covering both relevant aspects of wave and o ...

Institute of Physics2009

A Porcine Liver Model for Validation of Registration Accuracy in Image-Guided Surgery

Charles Baur, Benoît Dagon, Matthias Peterhans

Correct registration between pre-operative high-resolution images and intra-operative data of lower detail is a fundamental requirement in image-guided liver surgery. We propose a multi modality liver model for measuring the accuracy of such registration m ...

Springer2009

Determination of within-rod caesium and europium isotopic distributions in high burnup fuel rods through computerised gamma-ray emission tomography

Rakesh Chawla, Stefano Caruso, Fabian Jatuff

Computerised gamma-ray emission tomography has been applied to single PWR UO2 fuel rods, with pellet averaged burnups of 52, 71, 91 and 126 GWd/t respectively, for the determination of 134Cs, 137Cs and 154Eu internal radial distributions. State-of-the-art ...

Elsevier Science B.V.2009

A new tracer technique for monitoring groundwater fluxes: The Finite Volume Point Dilultion Method (FVPDM)

Jordi Batlle-Aguilar

Quantification of pollutant mass fluxes is essential for assessing the impact of contaminated sites on their surrounding environment, particularly on adjacent surface water bodies. In this context, it is essential to quantify but also to be able to monitor ...

2008

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