2017 Imaging for Physicists Coursebook
‘db by dt’
• Gradient waveform trapezoidal • Amplitude, Rise time, Slew rate e.g. 40 mT/m & 200 s = 200 T/m/s • Rapid changes (‘db/dt’) potential safety aspects
Max amplitude plateau
Slew Rate (T/m/s) = Amplitude (mT/m) Rise Time ( s)
Rise time
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