公开(公告)号：US20190198307A1

公开(公告)日：2019-06-27

申请号：US16306821

申请日：2017-06-05

Applicant: MICROMASS UK LIMITED

Inventor： Emrys Jones ,  Richard Chapman ,  Steven PRINGLE

IPC: H01J49/14 ,  H01J49/00 ,  H01J49/16

CPC classification number: H01J49/142 ,  H01J49/0004 ,  H01J49/0009 ,  H01J49/0031 ,  H01J49/165

Abstract: Apparatus is disclosed comprising a first ion source (210) arranged and adapted to emit a spray of charged droplets (211) and a detector or sensor (203) arranged and adapted automatically to detect, sense or determine one or more first parameters or properties of the spray of charged droplets (211) as the spray of charged droplets (211) impacts upon a surface of the detector or sensor 203. The apparatus further comprises a control system (204) arranged and adapted to adjust, correct and/or optimise one or more second parameters or properties of the spray of charged droplets (211) based on the one or more first parameters or properties of the spray of charged droplets (211) detected, sensed or determined by the detector or sensor (203).