Mass spectrometer

Details Mass spectrometer Mass spectrometer

H - Electricity

01

J

H01J 49/38 (2006.01) H01J 49/06 (2006.01)

Patent

CA 2657468

An improved FT-ICR mass spectrometer has an ion source which generates ions that are transmitted through an ion optical guide to an ion trapping device. Ions are ejected from the trap through a series of lens and multi-polar ion guide stages and into a measurement cell. A power supply generates an electric field to accelerate ions between the ion source and the measurement cell. The power supply is configured to supply a potential which decelerates ions from the source or the ion trapping device and to start to decelerate the ions only immediately adjacent the front of the measurement cell and continue to decelerate the ions at least as far as the front of the measurement cell.

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