2017 Imaging for Physicists Coursebook

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• wL  gB; Larmor frequency
• Set of equations describing a precession
around the axis defined by B (z-axis)
Bloch equations
BM
M
τ    g
dt
d
0
td
Md
, BM
td
Md
, BM
td
Md z
x
y
y
x  g g 
0 z
L
0
y y L
0
x x
M)t(M
t) sin( M)t(M , t) cos( M)t(M

w  w 

Felix Bloch
Joseph Larmor