However in practical MRI there are small differences in the static magnetic field at different spatial locations ( " inhomogeneities " ) that cause the Larmor frequency to vary across the body.
12.
If we have a spin which is not at the Larmor frequency, the relative frequency excursion of the adiabatic RF pulse will not be centered at that spin s resonance . ��
13.
When only the static magnetic field ( B 0 ) is turned on, the spin will precess around it with Larmor frequency ? 0 and the corresponding angular frequency is ? 0.
14.
Lamar want's to know how you calculated his frequency and he says that perhaps you meant the Larmor frequency .-- Deglr6328 13 : 49, 29 September 2006 ( UTC)
15.
Because the Zeeman Interaction is a function of magnetic field and Larmor frequency, it can be obstructed or amplified by altering the external magnetic or the Larmor frequency with experimental instruments that generate oscillating fields.
16.
Because the Zeeman Interaction is a function of magnetic field and Larmor frequency, it can be obstructed or amplified by altering the external magnetic or the Larmor frequency with experimental instruments that generate oscillating fields.
17.
These procedures rely on the fact that bulk magnetization due to nuclear spins precess in a magnetic field at a rate called the Larmor frequency, which is simply the product of the gyromagnetic ratio with the magnetic field strength.
18.
Replacing the \ cos \ theta term in the expected decay values of the Michel Parameters with a \ cos \ omega t term, where is the Larmor frequency from Larmor precession of the muon in a uniform magnetic field, given by:
19.
The accrued phase is proportional to both v _ x and the 1st moment of the bipolar gradient, \ Delta m _ 1, thus providing a means to estimate v _ x . \ gamma is the Larmor frequency of the imaged spins.
20.
Another simple example is when implanted all muon spins precess coherently around the same magnetic field of modulus B, perpendicular to the beam axis, causing the count unbalance to oscillate at the corresponding Larmor frequency \ omega between the same two detectors, according to
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