公开(公告)号：US12112936B2

公开(公告)日：2024-10-08

申请号：US17760501

申请日：2020-09-22

Applicant: THE TRUSTEES OF INDIANA UNIVERSITY

Inventor： Martin F. Jarrold ,  Aaron A. Todd

IPC: H01J49/42 ,  H01J49/40

CPC classification number: H01J49/4245 ,  H01J49/406 ,  H01J49/4265

Abstract: A charge detection mass spectrometer includes an ion trap configured to receive and store ions therein and to selectively release stored ions therefrom, and an electrostatic linear ion trap (ELIT) spaced apart from the ion trap, the ELIT including first and second ion mirrors and a charge detection cylinder positioned therebetween, and means for selectively controlling the ion trap to release at least some of the stored ions therefrom to travel toward and into the ELIT, and for controlling the first and second ion mirrors in a manner which traps in the ELIT a single one of the ions traveling therein and causes the trapped ion to oscillate back and forth between the first and second ion mirrors each time passing through and inducing a corresponding charge on the charge detection cylinder.