skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Noble gas magnetic resonator

Abstract

Precise measurements of a precessional rate of noble gas in a magnetic field is obtained by constraining the time averaged direction of the spins of a stimulating alkali gas to lie in a plane transverse to the magnetic field. In this way, the magnetic field of the alkali gas does not provide a net contribution to the precessional rate of the noble gas.

Inventors:
; ;
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1129190
Patent Number(s):
8,698,493
Application Number:
13/198,940
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI) CHO
DOE Contract Number:
FG02-03ER46093
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Aug 05
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Walker, Thad Gilbert, Lancor, Brian Robert, and Wyllie, Robert. Noble gas magnetic resonator. United States: N. p., 2014. Web.
Walker, Thad Gilbert, Lancor, Brian Robert, & Wyllie, Robert. Noble gas magnetic resonator. United States.
Walker, Thad Gilbert, Lancor, Brian Robert, and Wyllie, Robert. Tue . "Noble gas magnetic resonator". United States. doi:. https://www.osti.gov/servlets/purl/1129190.
@article{osti_1129190,
title = {Noble gas magnetic resonator},
author = {Walker, Thad Gilbert and Lancor, Brian Robert and Wyllie, Robert},
abstractNote = {Precise measurements of a precessional rate of noble gas in a magnetic field is obtained by constraining the time averaged direction of the spins of a stimulating alkali gas to lie in a plane transverse to the magnetic field. In this way, the magnetic field of the alkali gas does not provide a net contribution to the precessional rate of the noble gas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 15 00:00:00 EDT 2014},
month = {Tue Apr 15 00:00:00 EDT 2014}
}

Patent:

Save / Share:
  • A capacitively shortened coaxial resonator for making nuclear magnetic resonance measurements includes inner and outer concentrically arranged metal cylinders. The cylinders define therebetween a sample region and are shorted electrically by a conductive cap which closes one end of the inner and outer cylinders. A capacitor is connected across the cylinders at the opposite open end and functions to resonate with the inductance of a coaxial conductor formed by the short circuited cylinders. Samples placed in the sample region are mounted on an air bearing and rotated by means of air holes formed in the inner and outer cylinders.
  • The resonator of a gas dynamic laser, particularly, of a high power gas dynamic laser, is mechanically decoupled from the other components of the laser by a pair of elastic restoring ring membranes and stay bolts. The flow channel of the laser is mechanically connected through the ring membranes to the resonator. A pair of tubular, elastic sleeve membranes seal the flow channel in a vacuum tight manner. The laser beam decoupling elements are secured to bushings extending coaxially through said elastic tubular sleeve membranes. The restoring forces of the ring membranes are large relative to the differential force resultingmore » from said tubular sleeve sealing membranes.« less
  • In a gas laser resonator apparatus utilizing a gas lasing medium that is excited within a resonator cavity having reflective optical surfaces for producing a beam of coherent radiation, a heat exchanger located externally of the resonator cavity, and means for circulating the gas lasing medium from the resonator cavity through the heat exchanger to regulate the temperature of the gas lasing medium, the improvement is described comprising a temperature controller unit for conducting the gas laser medium within and through the heat exchanger including a tubular member of inert material and having a substantial length forming a primary chambermore » for conducting the gas lasing medium for heat exchange in a non-contaminating environment to thereby subsequently reduce gas contaminate buildup on the optical surfaces in the resonator cavity, end caps sealably closing the ends of the tubular member and including means for receiving gas lasing medium from the resonator cavity for circulation within the primary chamber. A gas outlet tube extends through one of the end caps and has an open inner end positioned within the primary chamber for receiving and conveying cooled gas lasing medium from the heat exchanger for recirculation to the resonator cavity, and spacer means support the inner end of the outlet tube within the primary chamber.« less