Measurement of the Proton Moment in Absolute Units

Abstract

By measuring the absolute value of the magnetic field and the frequency required for nuclear resonance absorption in a water sample, the gyromagnetic ratio of the proton has been determined to be ${\gamma }_P=(2.67528\mathrm{}\pm 0.00006)\times {10}^4$ ${\sec .\mathrm{}}^{-1\mathrm{}}$ ${\mathrm{gauss}}^{-1\mathrm{}}$. With this value and Planck's constant the value of the magnetic moment of the proton in absolute units becomes ${\mu }_P=(1.4100\mathrm{}\pm 0.0002)\times {10}^{-23\mathrm{}}$ dyne cm/gauss.