Apparatus for trapping uncharged multi-pole particles

Details Apparatus for trapping uncharged multi-pole particles Apparatus for trapping uncharged multi-pole particles

2007-10-02

2007-10-02

Vo, Tuyet (Department: 2821)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S291000, C250S290000, C250S281000

Reexamination Certificate

active

11089892

ABSTRACT:
Apparatus and method for trapping uncharged multi-pole particles comprises a bound cavity for receiving the particles, and a multiplicity of electrodes coupled to the cavity for producing an electric field in the cavity. In a preferred embodiment, the electrodes are configured to produce in the electric field potential both a multi-pole (e.g., dipole) component that aligns the particles predominantly along an axis of the cavity and a higher order multi-pole (e.g., hexapole) component that forms a trapping region along the axis. In one embodiment, the electrodes and/or the particles are cooled to a cryogenic temperature.

REFERENCES:
patent: 2939952 (1960-06-01), Paul et al.
patent: 6469298 (2002-10-01), Ramsey et al.
patent: 6710334 (2004-03-01), Twerenbold
patent: 6805779 (2004-10-01), Chistyakov
patent: 2006/0219898 (2006-10-01), McLuckey et al.
L. Pauling et al., “The van der Waals . . . ,”Phys. Rev., vol. 47, pp. 686-692 (May 1935).
J. D. Jackson, “Classical Electrodynamics,” 2nded., p. 164, John Wiley & Sons, New York (1975).
C. C. Bradley et al., “Laser Cooling . . . ,” Ch. 8,Experimental Methods in the Physical Sciences, vol. 29B, pp. 129-144 (1996).
J. M. Wells et al., “A Quadrupole Ion Trap . . . ,”Anal. Chem.vol. 70, No. 3, pp. 438-444 (Feb. 1998).
T. A. J. Duke et al., “Microfabricated Sieve . . . ,”Phys. Rev. Lett., vol. 80, No. 7, pp. 1552-1555 (Feb. 1998).
R. E. March, “Quadrupole Ion Trap . . . ,”Encyclopaedia of Anal. Chem., pp. 11848-11872, J. Wiley & Sons Ltd., Chichester (2000).
E. R. Badman et al., “Miniature Mass Analyzers,”J. Mass Spectrom., vol. 35, pp. 659-671 (2000).
R. H. Austin et al., “Scanning the Controls . . . ,”IEEE Trans. Nanotech., vol. 1, No. 1, pp. 12-18 (Mar. 2002).
W. B. Whitten et al., “High-pressure ion trap . . . ,”Rapid Commun. Mass Spectrom., vol. 18, pp. 1749-1752 (2004).
M. Bazant et al., “Induced-Charge . . . ,”Phys. Rev. Lett., vol. 92, No. 6, pp. 066101-(1-4) (Feb. 2004).
R. E. March et al., “Practical Aspects of Ion Trap Mass Spectrometry” vol. 1, p. 33, CRC Press LLC (1995).
S. Pau, “Trapping and separating polar molecules by a hexapole trap,”Appl. Phys. Lett., vol. 87, No. 13, pp. 134104-(1-3) (Sep. 2005).

Affiliated with

Also associated with

Rating

Apparatus for trapping uncharged multi-pole particles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for trapping uncharged multi-pole particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for trapping uncharged multi-pole particles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3893276