Adiabatically-tuned linear ion trap with fourier transform...

Details Adiabatically-tuned linear ion trap with fourier transform... Adiabatically-tuned linear ion trap with fourier transform...

2007-07-20

2009-10-27

Vanore, David A (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S281000, C250S283000, C250S286000, C250S287000

Reexamination Certificate

active

07608817

ABSTRACT:
A linear ion trap traps a plurality of charged particles in a charged particle trap including first and second electrode mirrors arranged along an axis at opposite ends of the particle trap, the electrode mirrors being capable, when voltage is applied thereto, of creating respective electric fields configured to reflect charged particles causing oscillation of the particles between the mirrors. The method includes: (a) introducing into the charged particle trap the plurality of charged particles, the particles having a spread in the oscillation time of the particles per oscillation; (b) applying voltage to the electrode mirrors during step (a) to induce a relatively weak self-bunching of the charged particles; and (c) after the plurality of charged particles has been introduced into the charged particle trap, waiting for a time period ΔT and then changing the voltage so as to induce a relatively stronger self-bunching among the charged particles.

REFERENCES:
patent: 6744042 (2004-06-01), Zajfman et al.

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