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Title: Method and apparatus for ion cyclotron spectrometry

Patent ·
OSTI ID:1013818

An ion cyclotron spectrometer may include a vacuum chamber that extends at least along a z-axis and means for producing a magnetic field within the vacuum chamber so that a magnetic field vector is generally parallel to the z-axis. The ion cyclotron spectrometer may also include means for producing a trapping electric field within the vacuum chamber that includes at least a first section that induces a first magnetron effect that increases a cyclotron frequency of an ion and at least a second section that induces a second magnetron effect that decreases the cyclotron frequency of an ion. The cyclotron frequency changes induced by the first and second magnetron effects substantially cancel one another so that an ion traversing the at least first and second sections will experience no net change in cyclotron frequency.

Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC07-05ID14517
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Number(s):
7,777,182
Application Number:
11/833,079
OSTI ID:
1013818
Country of Publication:
United States
Language:
English

References (11)

Theory of ion cyclotron resonance mass spectrometry: resonant excitation and radial ejection in orthorhombic and cylindrical ion traps journal October 1990
Investigation of the ion movement in open ICR cells with computer simulations journal January 1998
Toward quantitation of ion/molecule kinetics in fourier transform ion cyclotron resonance mass spectrometry journal January 1989
The effect of ion position on ICR signal strength journal February 1984
Cyclotron orbital radius determination in Fourier transform ion cyclotron resonance mass spectrometry journal May 1992
Quantitation of ion abundances in fourier transform ion cyclotron resonance mass spectrometry journal November 1998
Fourier transform ion cyclotron resonance detection: principles and experimental configurations journal April 2002
Observation, manipulation, and uses for magnetron motion in ion cyclotron resonance mass spectrometry journal January 1995
Coupling of axial and radial motions in ICR cells during excitation journal December 1986
The ‘infinity cell’: A new trapped-ion cell with radiofrequency covered trapping electrodes for fourier transform ion cyclotron resonance mass spectrometry journal May 1991
Milestones in fourier transform ion cyclotron resonance mass spectrometry technique development journal December 2000