Method and system for producing polarized .sup.129 Xe gas

Details Method and system for producing polarized .sup.129 Xe gas Method and system for producing polarized .sup.129 Xe gas

1995-06-07

1997-04-08

Lateef, Marvin M.

Surgery

Truss

Pad

128654, 432262, A61B 5055

Patent

active

056178603

ABSTRACT:
A method and system for producing polarized .sup.129 Xe gas in an economical manner, allowing the polarized .sup.129 Xe gas to be used commercially in research and clinical applications. The production system of the present invention includes a holding tank for holding an unpolarized xenon gas
itrogen gas mixture. The holding tank is in communication with a temperature controlled polarization chamber. A wide spectrum high power light source such as a diode laser array is in communication with the polarization chamber. The alkali metal vapor is optically pumped by the light source. The polarization chamber, which contains a given quantity of an alkali metal and its associated vapor, receives the gaseous mixture from the holding tank. The optically pumped alkali metal vapor atoms then collide with the xenon gas atoms, thus polarizing the xenon atoms. The entire gaseous mixture expands out of the polarization chamber into a device that separates the alkali metal vapor atoms from the polarized .sup.129 Xe atoms. The polarized .sup.129 Xe atoms are then controllably output to a system/user interface for application purposes.

REFERENCES:
patent: 3996120 (1976-12-01), Freund et al.
patent: 4025790 (1977-05-01), Jetter et al.
patent: 4029559 (1977-06-01), Marling
patent: 4032306 (1977-06-01), Lee
patent: 4372928 (1983-02-01), Chatelet et al.
patent: 4381923 (1983-05-01), Wada
patent: 4386274 (1983-05-01), Altshuler
patent: 4505791 (1985-03-01), Angelie et al.
patent: 4528080 (1985-07-01), Donohue et al.
patent: 5015348 (1991-05-01), Eerkens
patent: 5039500 (1991-08-01), Shino et al.
patent: 5063746 (1991-11-01), Agrawal et al.
patent: 5067976 (1991-11-01), Agrawal et al.
patent: 5069698 (1991-12-01), Cheung et al.
patent: 5110430 (1992-05-01), Eerkens
patent: 5122173 (1992-06-01), Agrawal et al.
patent: 5186007 (1993-02-01), Takano et al.
patent: 5202005 (1993-04-01), Paisner et al.
patent: 5316635 (1994-05-01), Green et al.
patent: 5357959 (1994-10-01), Fishman
patent: 5545396 (1996-08-01), Albert et al.
M.S. Albert et al., Biological Magnetic Resonance Imaging Using Laser-Polarized .sup.129 Xe. Nature, vol. 370, Jul. 21, 1994, pp. 199-201.
M.E. Wagshul et al., Optical Pumping Of High-Density Rb With A Broadband Dye Laser And GaAlAs Diode Laser Arrays: Application To .sup.3 He Polarization. Physical Review A. vol. 40, No. 8, Oct. 15, 1989, pp. 4447-4454.
G.D. Cates, et al., Rb-.sup.129 Xe Spin-Exchange Rated Due To Binary And Three-Body Collisions At High Xe Pressures. Physical Review A. vol. 45, No. 7, Apr. 1, 1992, pp. 4631-4639.

Affiliated with

Also associated with

Rating

Method and system for producing polarized .sup.129 Xe gas does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for producing polarized .sup.129 Xe gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for producing polarized .sup.129 Xe gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2392798