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Diffusion de neutrons aux petits angles (PACE, PAXE, PAxy, TPA)
La structure sur des échelles de 1 à 100 nm logo_tutelle logo_tutelle 

Le LLB dispose de 4 appareils de diffusions de neutrons aux petits angles (PA), de gauche à droite :

PACE
 
PAXE
PAxy
Petits angles,
détecteur 2d XY
TPA
 
Très petits angles

 

Différentes architectures moléculaires étudiées par diffusion de neutrons aux petits angles.

 

Maj : 03/12/2014 (535)

Voir aussi
La diffusion neutronique est un outil précieux pour explorer les protéines, les édifices biologiques (complexes ADN-protéines), les cellules entières, l ’eau cellulaire. En effet, les propriétés neutroniques très différentes de l ’hydrogène et du deutérium, permettent de faire ... Lire la suite »
This study investigates the long term behavior of glasses used for confinement of nuclear wastes. The results have been obtained from a fruitful collaboration between different CEA laboratories (LLB, LIONS, CEA Marcoule) and the Ecole Polytechnique. The corrosion process of the glasses by water ... Lire la suite »
The use of agricultural resources for industrial purposes will undoubtly be one of the major challenges of the 21 st century. Organic biosynthons used in chemistry should progressively replace those coming from fossil fuels. Our work on dispersions of fatty acids and hydroxylated derivatives forms ... Lire la suite »
Following the synthesis by the ribosome, to carry out its biological function, a protein much fold into a single, well defined conformational state: the native state. Protein folding is thus the physico-chemical process by which a polypeptidic chain undergoes a structural change from an ensemble of ... Lire la suite »
P. Guenoun, C. Blot
See the PhD position opened in 2014 about this subject http://iramis.cea.fr/Pisp/patrick.guenoun/Greenmembranes.html Phase separation of polymer solution, induced by an abrupt quench in temperature, leads to a macroscopic segregation of phases. The growth of the phases and the associated ... Lire la suite »
The improvement of the mechanical properties of polymer films by inclusion of mineral particles is a well known industrial practice used since the end of the XIX century. A classical example is the rubber industry for which the addition of carbon black as fillers permits to increase the elastic ... Lire la suite »
 

 

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