Patent ID: 6989533
Filing Date: 2006-01-24
Classification: H01F,H01J

Abstract:
1. A vacuum ion trap, the trap comprising a gastight processing enclosure ( 4 ) and a permanent magnet ( 30 ) defining a cavity ( 32 ) and creating a uniform and directed magnetic field (B) in said cavity ( 32 ), said enclosure ( 4 ) being disposed inside said cavity ( 32 ) and containing a confinement cell ( 8 ; 50 ) comprising at least two mutually parallel trapping electrodes ( 10 ) perpendicular to said directed magnetic field (B), said trapping electrodes ( 10 ) being connectable to a voltage generator ( 12 ), the trap including at least one permanent magnet ( 30 ) in the form of a hollow cylinder and structured with a Halbach cylinder type structure so as to generate said permanent magnetic field (B) that is uniform and directed perpendicularly to the longitudinal axis (XX′) of the cavity ( 32 ) of said magnet ( 30 ).