Concept

Mössbauer spectroscopy

Related publications (375)

Measurement and modelling of semi-batch reactions using small-scale reaction calorimetry, in-situ spectroscopy and gas consumption/production

Julien Léo Billeter, Konrad Hungerbühler

The rapid and complete characterization of chemical reaction mechanisms is of the utmost importance in terms of chemical understanding, safety and efficiency. In this presentation a new small volume reaction calorimeter (25-45mL) is described. With this re ...

2006

Proton MRS of the unilateral substantia nigra in the human brain at 4 tesla: Detection of high GABA concentrations

Rolf Gruetter

Parkinson's disease (PD) is characterized by loss of dopaminergic neurons in the substantia nigra (SN), the cause of which is unknown. Characterization of early SN pathology could prove beneficial in the treatment and diagnosis of PD. The present study sho ...

2006

SAXES, a high resolution spectrometer for resonant x-ray emission in the 400-1600 eV energy range

Marco Grioni, Thorsten Schmitt, Xiao Wang

We present a 5 m long spectrometer for soft x rays to be used at a synchrotron radiation beamline for resonant x-ray emission spectroscopy and resonant inelastic x-ray scattering in the 400-1600 eV energy range. It is based on a variable line spacing spher ...

American Institute of Physics2006

Clinical fluorescence spectroscopy and imaging for the detection of early carcinoma by autofluorescence bronchoscopy and the study of the protoporphyrin IX pharmacokinetics in the endometrium

Tanja Gabrecht

The aim of this thesis is to optimise and gain fundamental information on two applications of photomedicine using fluorescence imaging and spectrofluorometry: (1) the detection of early bronchial cancer by autofluorescence imaging and (2) the endometrial a ...

EPFL2006

Seeded Growth of Asymmetric Binary Nanocrystals Made of a Semiconductor TiO2 Rodlike Section and a Magnetic γ-Fe2O3 Spherical Domain

Raffaella Buonsanti

Asym. binary nanocrystals (BNCs), comprising one c-axis elongated anatase TiO2 section and one γ-Fe2O3 spherical domain attached together, are synthesized by heterogeneous nucleation of iron oxide onto the longitudinal facets of TiO2 nanorods in a ternary ...

2006

A Full Multiple Scattering Model for the Analysis of Time-Resolved X-ray Difference Absorption Spectra

Majed Chergui, Wojciech Gawelda

A full multiple theor. model (MXAN) is applied to fit picosecond difference x-ray absorption spectra at the Ru L3 edge upon photoexcitation of aq. [RuII(bpy)3]2+. Fitting difference spectra allows an increase in sensitivity, such that slight structural cha ...

2006

Variable Temperature and EPR Frequency Study of Two Aqueous Gd(III) Complexes with Unprecedented Sharp Lines

Marinella Mazzanti, Alain Borel

We present an EPR study of two Gd(III) complexes in aqueous solution at multiple temperatures and EPR frequencies. These two complexes, [Gd(TPATCN)] and [Gd(DOTAM)(H2O)]3+, display remarkably sharp lines (i.e. slow transverse electron spin relaxation) in c ...

2006

A High-Frequency EPR Study of Frozen Solutions of Gd(III) Complexes: Straightforward Determination of the Zero-Field Splitting Parameters and Simulation of the NMRD Profiles

André Merbach, Lothar Helm, Alain Borel

Gd(III) (S = 7/2) polyaminocarboxylates, used as contrast agents for Magnetic Resonance Imaging (MRI), were studied in frozen solutions by High-Frequency-High-Field Electron Paramagnetic Resonance (HF-EPR). EPR spectra recorded at 240 GHz and temperatures ...

2006

Materials compatibility issues in LTCC technology and their effects on structural and electrical properties

Peter Ryser, Thomas Maeder, Hansu Birol

Although LTCC (low temperature co-fired ceramics) technology is an attractive solution for smart-packaging of micro-electronic devices, numerous studies are still underway to overcome the difficulties encountered during processing and application. These di ...

2005

Ultrafast solvent response upon a change of the solute size in non-polar supercritical fluids

Majed Chergui

Non-polar solvation dynamics has been investigated using steady-state absorption and emission spectroscopy of the NO A(2)Sigma(+)(3ssigma) Rydberg state in fluid Ar over a wide range of densities spanning the supercritical regime. Equilibrium molecular dyn ...

2005

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