Patent ID: 11935734
Assignee: LEYBOLD GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A mass spectrometer comprising:
an ion trap, comprising:
a first ring-shaped end cap electrode and a second ring-shaped end cap electrode, between which is formed a ring-shaped ion storage cell,
characterised by a plurality of radially inner disk-shaped ring electrodes and a plurality of radially outer disk-shaped ring electrodes that delimit the ring-shaped ion storage cell; and

a control device that is designed to actuate the disk-shaped ring electrodes and the end cap electrodes for the storage, selection, excitation and/or detection of ions in the ring-shaped ion storage cell, and, on the basis of ion signals recorded at different segments of the end cap electrodes, to determine a time-related dispersion of the ions that are injected in a pulsed manner into the ion storage cell.