An Improved Ion Guide for External Ion Injection in Glow Discharge-Fourier Transform Ion Cyclotron Resonance (GD-FTICR) Mass Spectrometry

Abstract

To improve the existing ion transport optics of our glow discharge-Fourier transform ion cyclotron resonance (GD-FTICR) mass spectrometer, we have simulated several ion trajectories between the glow discharge source region and the ICR analyzer cell. These calculations suggested that a number of simple improvements, including the use of an ion flight tube and an electrically isolated conductance limit, would increase the efficiency of ion transfer through the fringing fields of the FTICR superconducting magnet and into the ICR analyzer cell. Ion beam intensity was monitored before and after implementing these improvements as a function of the distance between the glow discharge source and the analyzer cell. A twenty-fold improvement in the transport efficiency, as well as a significant enhancement in detected FTICR signals, was observed.

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Document Details

Document Type
Technical Report
Publication Date
May 28, 1992
Accession Number
ADA250944

Entities

People

  • Christopher M. Barshick
  • John R. Eyler

Organizations

  • University of Florida

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Classification
  • Cyclotron Resonance
  • Detection
  • Glow Discharges
  • High Resolution
  • High Voltage
  • Ion Beams
  • Kinetic Energy
  • Magnetic Fields
  • Mass Spectrometers
  • Mass Spectrometry
  • Military Research
  • Security
  • Spectrometers
  • Spectrometry
  • Stainless Steel

Fields of Study

  • Physics

Readers

  • Organizational Process Management (OPM).
  • Pulsed Power and Plasma Physics.