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Title: Off-resonance energy absorption in a linear Paul trap due to mass selective resonant quenching

Linear Paul traps (LPT) are used in many experimental studies such as mass spectrometry, atom-ion collisions, and ion-molecule reactions. Mass selective resonant quenching (MSRQ) is implemented in LPT either to identify a charged particle's mass or to remove unwanted ions from a controlled experimental environment. In the latter case, MSRQ can introduce undesired heating to co-trapped ions of different mass, whose secular motion is off resonance with the quenching ac field, which we call off-resonance energy absorption (OREA). We present simulations and experimental evidence that show that the OREA increases exponentially with the number of ions loaded into the trap and with the amplitude of the off-resonance external ac field.
Authors:
; ; ;  [1] ;  [2]
  1. Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)
  2. Naval Air Systems Command, EO Sensors Division, Bldg 2187, Suite 3190 Patuxent River, Maryland 20670 (United States)
Publication Date:
OSTI Identifier:
22220318
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 84; Journal Issue: 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; AMPLITUDES; ENERGY ABSORPTION; HEATING; ION-ATOM COLLISIONS; IONS; MASS SPECTROSCOPY; MOLECULES; PARTICLES; QUENCHING; SIMULATION; TRAPPING; TRAPS