Freitag, 20. März 2009

Postdoctoral position in Paris

*Postdoctoral position opened in Paris for exploring the physics of NMR
in highly polarized liquid samples (18 months).*

A collaborative work is performed by two teams, one at the Ecole Normale
Supérieure and the other one at CEA/Saclay, to study new physical
phenomena related to the non-linear evolution of magnetization observed
in NMR of hyperpolarized liquid samples. For instance, the team in Paris
has achieved NMR time-reversal in liquid polarized 3He in spite of
spin-turbulence [1] while the team in Saclay has studied multiple
chaotic maser emissions in dissolved polarized 129Xe [2]. The main
activity of the recruited researcher will be experimental NMR studies in
these systems, with the help of existing simulation tools to design
sequences and interpret results.

The experiments in Paris are performed at very low magnetic field (2mT)
using a Tecmag Apollo console and dedicated hardware at low temperature
(1K). In Saclay, experiments are performed at 11.7T and room temperature
using a Bruker Avance II spectrometer. The applicants should preferably
be experimental physicists or research engineers with a strong general
background and significant experience in NMR techniques. The position
will primarily be localized at the Laboratoire Kastler-Brossel [3]
(Physics Department of the ENS) in downtown Paris but part of the work
will be performed at CEA's Lab distant from about 40 minutes by ground
transportation from downtown Paris. The preferred starting date lies
between spring and autumn 2009.

Further information and contacts:
Dr. P.J. Nacher,
Laboratoire Kastler-Brossel
Physics Department, Ecole Normale Supérieure
24, Rue Lhomond, F-75231 Paris cedex 05

Dr. Hervé Desvaux,
Laboratoire Structure et Dynamique par Résonance Magnétique,
CEA/Saclay, F-91191 Gif/Yvette

[1] M. E. Hayden, E. Baudin, G. Tastevin, and P. J. Nacher, "NMR time
reversal as a probe of incipient turbulent spin dynamics" Phys. Rev.
Lett., 99 (2007) 137602
[2] D. J. Y. Marion, G. Huber, P. Berthault, and H. Desvaux,
"Observation of noise-triggered chaotic emissions in an NMR-maser"
ChemPhysChem, 10 (2008) 1395-1401.

/The DIPOL project (Non-linear NMR in polarised liquids) is funded by
the Agence Nationale de la Recherche./