US 11,749,516 B2
Ion guide
Hamish Stewart, Bremen (DE); Alexander Wagner, Bremen (DE); and Alexander A. Makarov, Bremen (DE)
Assigned to Thermo Fisher Scientific (Bremen) GmbH, Bremen (DE)
Filed by Thermo Fisher Scientific (Bremen) GmbH, Bremen (DE)
Filed on May 31, 2022, as Appl. No. 17/828,244.
Application 17/828,244 is a continuation of application No. 16/413,463, filed on May 15, 2019, granted, now 11,373,850.
Claims priority of application No. 1808045 (GB), filed on May 17, 2018; application No. 1808047 (GB), filed on May 17, 2018; application No. 1808048 (GB), filed on May 17, 2018; and application No. 1906557 (GB), filed on May 9, 2019.
Prior Publication US 2022/0293410 A1, Sep. 15, 2022
Int. Cl. H01J 49/00 (2006.01); H01J 49/06 (2006.01); G01N 27/622 (2021.01); H01J 49/36 (2006.01); H01J 49/42 (2006.01)
CPC H01J 49/068 (2013.01) [G01N 27/622 (2013.01); H01J 49/061 (2013.01); H01J 49/065 (2013.01); H01J 49/36 (2013.01); H01J 49/4215 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An ion guide, comprising:
a first plurality of electrode arrangements, each electrode arrangement comprising respective parallel bar electrodes, with a respective gap therebetween; and
a second plurality of electrode arrangements, each electrode arrangement comprising respective parallel electrode parts, with a respective gap therebetween, the parallel electrode parts of the second plurality of electrode arrangements being arranged orthogonally with respect to the parallel bar electrodes of the first plurality of electrode arrangements, such that the respective gaps of the first plurality of electrode arrangements are aligned with the respective gaps of the second plurality of electrode arrangements to allow ions to travel therethrough along a continuous path;
wherein the first and second pluralities of electrode arrangements are arranged alternately along the continuous path; and
wherein each of the first plurality of electrode arrangements is provided with an RF potential and each of the second plurality of electrode arrangements is provided only with one or more DC potentials or wherein each of the first plurality of electrode arrangements is provided with only one or more DC potentials and each of the second plurality of electrode arrangements is provided with an RF potential.