The gyromagnetic ratio (sometimes magnetogyric ratio), γ, is the constant of proportionality between the magnetic moment (μ) and the angular momentum(J) of an `mu`
`mu`=+-'gamma' J
where the sign is chosen to make γ a positive number.
The units of the gyromagnetic ratio are SI units are radian per second per tesla (s−1T−1) or, equivalently, coulomb per kilogram (Ckg−1). When the object is placed in a magnetic flux density B, because of its magnetic moment it experiences a torque and precesses about the field at the Larmor frequency, which is given (in radians/s) by the product of the field strength and the gyromagnetic ratio
2.67515255*108 1/sT
A constant for any given nucleus that relates the nuclear MR frequency and the strength of the external magnetic field.
Definition: The ratio of the magnetic moment (field strength = T) to the angular momentum (frequency = v) of a particle.
The gyromagnetic effect happens if a magnetic substance is subjected to a magnetic field. Upon a change in direction of the magnetic field, the magnetization of the substance must change. In order for this to happen, the atoms must change their angular momentum. Since there are no external torques acting on the system, the total angular momentum must remain constant. This mass rotation may be measured. The gyromagnetic ratio is different for each nucleus of different atoms. The value of the gyromagnetic ratio for hydrogen (1H) is 4,258 (Hz/G) (42.58 MHz/T).
Value: 2.675 222 005 x 108 s-1 T-1
Standard uncertainty: 0.000 000 063 x 108 s-1 T-1
Relative standard uncertainty: 2.4 x 10-8
Concise form : 2.675 222 005(63) x 108 s-1 T-1