Читать книгу Essentials of MRI Safety - Donald W. McRobbie - Страница 28
Example 1.2 Gradient performance
ОглавлениеWhat is the (theoretical) maximum field produced by a 40 mTm−1 gradient system with a slew rate of 200 T m−1s−1? What is the minimum rise time?
Assuming that the gradient is linear over a 50 cm FOV, the maximum amplitude at the edge, 25 cm from the iso‐centre is
The minimum rise time is