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Method and apparatus for ion cyclotron spectrometry

United States Patent

August 17, 2010
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
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.
Dahl; David A. (Idaho Falls, ID), Scott; Jill R. (Idaho Falls, ID), McJunkin; Timothy R. (Idaho Falls, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
11/ 833,079
August 2, 2007
GOVERNMENT RIGHTS This invention was made with United States Government support under Contract No. DE-AC07-051D14517 awarded by the United States Department of Energy. The United States Government has certain rights in the invention.