Where is the gyromagnetic ratio, is the magnetic moment, is the damping coefficient and is the effective magnetic field ( the external field plus any self-induced field ).
22.
Alternative methods are therefore necessary for nuclei with a negative gyromagnetic ratio, and one such method using the INEPT pulse sequence was proposed by Ray Freeman in 1979.
23.
However, for NOE, a negative value of " K ", the ratio of gyromagnetic ratios of the nuclei, may result in a " reduction " in signal intensity.
24.
Hydrogen is the most frequently imaged nucleus in MRI because it is present in biological tissues in great abundance, and because its high gyromagnetic ratio gives a strong signal.
25.
Where " g s " is the spin gyromagnetic ratio ( a . k . a . " spin spin operator vector, whose components are the Pauli matrices, hence
26.
When applied a one-electron atom or ion, setting "'0 "'} } and to the appropriate electrostatic potential, additional relativistic terms include the spin-orbit interaction, electron gyromagnetic ratio, and Darwin term.
27.
For 15 N ( Nitrogen-15 NMR spectroscopy ) which has a negative gyromagnetic ratio, if the dipolar relaxation has to compete with other mechanisms, the observed 15 N signal can be near zero.
28.
The relaxation time, " T 1 " ( the average lifetime of nuclei in the higher energy state ) is dependent on the gyromagnetic ratio of the nucleus and the mobility of the lattice.
29.
Another reason is the ability to 13 C isotope, which is more easy to measure than the usually used hydrogen atoms mainly because of its magnetic properties ( such as its gyromagnetic ratio ).
30.
A variable related to this effect called " g, " and also know as the " gyromagnetic ratio, " is very close to 2, but, according to the Standard Model, not exactly 2, he said.
