Title :
A new low-field determination of the proton gyromagnetic ratio in water
Author :
Shifrin, Vladlen Ya ; Park, Po Gyu ; Khorev, Vyacheslav N. ; Choi, Chang Ho ; Kim, C.S.
Author_Institution :
VNIIM, St. Petersburg, Russia
fDate :
6/1/1998 12:00:00 AM
Abstract :
The proton gyromagnetic ratio in water has been measured by the low field method using atomic magnetic resonance in 4He, a multicurrent solenoid and an induction method for the dimensional measurement of the solenoid. The result for air and vacuum environment is γ´p (low, air)=2.67515451×108 s-1 T-1 (0.18×10-6), γ´p (low, vacuum)=2.67515418×108 s-1 T-1 (0.18×10-6), based on the adopted values KJ-90=483597.9 GHz/V, RK-90=25812.807 Ω, and measured values γ(4 He)/γ´p=658.200556, γ(4He) (air)=1760.78819×108 s-1 T-1 (0.18×10-6), KJ-90, RK-90
Keywords :
constants; gyromagnetic ratio; helium neutral atoms; magnetic flux; measurement standards; nuclear magnetic resonance; solenoids; 4He; AMR; H2O; He; NMR; atomic magnetic resonance; dimensional measurement; induction method; low-field determination; multicurrent solenoid; proton gyromagnetic ratio; water; Atomic measurements; Gyromagnetism; Helium; Magnetic field measurement; Magnetic flux density; Magnetic resonance; Nuclear magnetic resonance; Nuclear measurements; Protons; Solenoids;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
