Centre National De La Recherche Scientifique

Université Pierre Et Marie Curie (Paris Vi)

Universite De Paris 11 - Paris Sud

Université Paris—sud

Université Pierre Et Marie Curie

Centre National De La Recherche Scientifique (cnrs) Etablissement Public

Michel Heninger

Joël Lemaire

Gérard Mauclaire

Pierre Boissel

Gérard Bellec

A vacuum magnetic ion trap includes an assembly forming a permanent magnet including at least two magnetized structures () in the form of hollow cylinders, one convergent radial structure, magnetized along a convergent radial direction, and one divergent radial structure, magnetized along a divergent radial direction, the convergent and divergent radial magnetized structures () being arranged along a common longitudinal axis (XX') The trap also includes a sealed chamber () containing anion confinement cell () fixed between the at least two magnetized structures () and including at least two trapping electrodes () connectable to a voltage generator ().

Ion trap with longitudinal permanent magnet and mass spectrometer using same

A vacuum ion trap includes a gastight processing enclosure and a permanent magnet defining a cavity and creating a directed magnetic field in the cavity, the enclosure being disposed inside the cavity and containing a confinement cell having at least two mutually parallel trapping electrodes perpendicular to the directed magnetic field, the trapping electrodes being connectable to a voltage generator. The trap includes at least one permanent magnet in the form of a hollow cylinder and structured with a Halbach cylinder type structure so as to generate the permanent magnetic field directed perpendicularly to the longitudinal axis of the cavity of the magnet. The trap is applicable in particular to Fourier transform mass spectrometry (FTICR).

Permanent magnet ion trap and a mass spectrometer using such a magnet

Growing community of inventors

Etiolles, France

Michel Heninger