Imaging for Physicists
Gradients (db/dt)
G z
= dB 0
/dz
isocentre
• 3 orthogonal or in combination • High amplitudes -Resolution -DTI • Fast switching rates -Faster scans
y
z
x
B 0 ω 0
B 0
- ∆ B - ∆ ω
B 0
+ ∆ B
+ ∆ ω
ω 0
ω 0
Made with FlippingBook
Gradients (db/dt)
G z
= dB 0
/dz
isocentre
• 3 orthogonal or in combination • High amplitudes -Resolution -DTI • Fast switching rates -Faster scans
y
z
x
B 0 ω 0
B 0
- ∆ B - ∆ ω
B 0
+ ∆ B
+ ∆ ω
ω 0
ω 0
Made with FlippingBook