Ion trapping mass spectrometry method and apparatus therefor

Details Ion trapping mass spectrometry method and apparatus therefor Ion trapping mass spectrometry method and apparatus therefor

1996-04-02

1997-10-21

Nguyen, Kiet T.

Radiant energy

Ionic separation or analysis

250282, 250292, H01J 4942

Patent

active

056799500

ABSTRACT:
An ion trapping mass spectrometer permitting highly sensitive mass spectrometry through in-situ observation. The mass spectrometer comprises ion trapping electrodes, a laser device for generating a cooling laser beam and a photo detector. The ion trapping electrodes generate a field in which to store sample ions and laser-cooled probe ions concurrently. The ions are cooled by laser as well as by the effect of sympathetic cooperative cooling, whereby intense resonance scattering light is acquired from the probe ions. An analyzing AC electric field is applied to the sample ions while the field is being scanned in frequency. Resulting changes in the resonance scattering light and spatial distribution of the probe ions are observed for mass spectrometry.

REFERENCES:
patent: 2939952 (1960-06-01), Paul et al.
patent: 4540884 (1985-09-01), Stafford et al.
patent: 4736101 (1988-04-01), Syka et al.
patent: 4755670 (1988-07-01), Syka et al.
patent: 5134286 (1992-07-01), Kelley
patent: 5248883 (1993-09-01), Brewer et al.
Physical Review A, vol. 21, No. 5, May 1980, pp. 1606-1617; J.P. Gordon et al.: Motion of atoms in a radiation trap.
Physical Review Letters, vol. 59, No. 26, 28 Dec. 1987, pp. 2931-2934; F. Diedrich et al.: Observation of a Phase Transition of Stored Laser-Cooled Ions.
Physical Review Letters, vol. 57, No. 1, 7 Jul. 1986, pp. 70-73; D.J. Larson et al.: Sympathetic Cooling of Trapped Ions: A Laser-Cooled Two-Species Nonneutral Ion Plasma.
Physical Review Letters, vol. 60, No. 20, 16 May 1988, pp. 2022-2025; S.L. Gilbert et al.: Shell-Structure Phase of Magneticallyu Confined Strongly Coupled Plasmas.
Optics Letters, vol. 18, No. 9, 1 May 1993, pp. 732-734; G.P. Barwood et al.: Observation of the 5s.sup.2 S.sub.1/2 -4d.sub.2 D.sub.5/2 transition in a single laser-cooled trapped Sr.sup.+ ion by using an all-solid-state system of lasers.
Applied Physics, vol. 17, 1978, pp. 123-129; W. Neuhauser et al.: Visual Observation and Optical Cooling of Electrodynamically Contained Ions.
Physical Review A, vol. 45, No. 9, 1 May 1992, pp. 6493-6501; M.G. Raizen et al.: Ionic crystals in a linear Paul trap.
Physical Review A, vol. 44, No. 1, 1 Jul. 1991, pp. R20-R23; A.S. Bell et al.: Laser cooling of trapped ytterbium ions using a four-level optical-excitation scheme.
The Quantum Physics of Atomic Frequency Standards, vol. 2, Adamn Hilger, 1989, pp. 1498-1502; J. Vanier et al.
IEEE Transactions on Instrumentation and Measurement, vol. 38, No. 2, Apr. 1989, pp. 524-532; Jurgen Helmcke et al.: Optical Frequency Standards.
Physical Review Letters, vol. 68, No. 13, 30 Mar. 1992, pp. 2007-2010; I. Waki eta l.: Observation of Ordered Structures of Laser-Cooled Ions in a Quadrupole Storage Ring.

Affiliated with

Also associated with

Rating

Ion trapping mass spectrometry method and apparatus therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ion trapping mass spectrometry method and apparatus therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion trapping mass spectrometry method and apparatus therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1008838