US 12,444,596 B2
Voltage supply for a mass analyser
Hamish Stewart, Bremen (DE); Dmitry Grinfeld, Bremen (DE); and Philipp Cochems, Bremen (DE)
Assigned to Thermo Fisher Scientific (Bremen) GmbH, Bremen (DE)
Filed by Thermo Fisher Scientific (Bremen) GmbH, Bremen (DE)
Filed on Apr. 2, 2024, as Appl. No. 18/624,417.
Application 18/624,417 is a continuation of application No. 17/661,331, filed on Apr. 29, 2022, granted, now 11,972,938.
Claims priority of application No. 2107895 (GB), filed on Jun. 2, 2021.
Prior Publication US 2024/0249931 A1, Jul. 25, 2024
Int. Cl. H01J 49/40 (2006.01); H01J 49/06 (2006.01)
CPC H01J 49/40 (2013.01) [H01J 49/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A mass analyser comprising:
an ion source configured to output ions along an ion trajectory;
an ion detector configured to detect ions along the ion trajectory;
a plurality of electrodes arranged along the ion trajectory, each electrode of the plurality of electrodes having an associated mass shift per volt perturbation;
a jitter compensating electrode arranged along the ion trajectory; and
a voltage source connected to the plurality of electrodes and the jitter compensating electrode,
wherein the jitter compensating electrode has a mass shift per volt perturbation configured to compensate for a net mass shift per volt perturbation of the plurality of electrodes.