Accession Number:

ADP012555

Title:

Forms and Oscillations Modes of Ion Cloud in the Linear RF-only Quadrupole Traps and in Ion Traps

Descriptive Note:

Final rept. 15 Apr 2001-31 Mar 2002

Corporate Author:

RUSSIAN RESEARCH CENTER MOSCOW KURCHATOV INST

Personal Author(s):

Report Date:

2002-06-24

Pagination or Media Count:

7.0

Abstract:

Computer modelling of space configurations of ion clouds consisting of different mz ions and dynamics of their motion in the presence of externaldipolar and quadrupolar RF-field were analyzed. Forms of ion clouds in ion traps were obtained by molecular modelling. It was shown that stratification of different mz ions appears as a result of interaction of ion clouds with RF fields and with each other. For ions with high charge q30 e electron and mass m30 000 m proton electrosprayed protein ions in ion guides and ion traps at ion densities 10exp 8cu cm stratification takes place even at room temperatures. Coalescence of ion resonance frequencies for light and heavy equally charged ions in Paul ion trap was also demonstrated.

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE