Dynamic biasing of ion optics in a mass spectrometer

Details Dynamic biasing of ion optics in a mass spectrometer Dynamic biasing of ion optics in a mass spectrometer

2005-06-30

2008-08-05

Berman, Jack I. (Department: 2881)

Radiant energy

Ionic separation or analysis

With sample supply means

C250S286000, C250S287000, C250S282000, C250S292000, C156S345280

Reexamination Certificate

active

07408151

ABSTRACT:
A device for dynamically biasing an ion optic element, for example, in a mass spectrometer. The device includes a voltage source, a first ion optical element coupled with the voltage source, a second ion optical element resistively coupled with the first ion optical element; and a pulse generator capacitively coupled with the second ion optical element. The pulse generator is configured to apply a series of pulses to the second ion optical element. In steady state operation, a dynamic voltage bias is generated between the first ion optical element and the second ion optical element. The dynamic voltage bias is controllable by controlling the characteristics of the applied pulses, such as the pulse width, pulse amplitude, and pulse repetition rate of the applied pulses.

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