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

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

2006-01-24

2006-01-24

Nguyen, Kiet T. (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S3960ML

Reexamination Certificate

active

06989533

ABSTRACT:
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).

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Schlapp M et al.: “A 14 GHZ Electron-Cyclotron-Resonance (ECR) Ion Source for Ion-Electron Collision Studies”, Nuclear Instruments & Methods in Physics Research, Section—B: Beam Interactions with Materials and Atoms, North-Holland Publishing Company, Amsterdam, NL, vol. 98, NR. 1/4, pp. 521-524 XP000511261 ISSN: 0168-583X p. 521-p. 524.

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