The second portion of the course will discuss basic concepts of image formation, including radiofrequency pulse excitation, magnetic field gradients, imaging equation, Fourier Transform, k-space, and ...

"The discovery doesn't rule out the existing theory, because the expected magnetic field gradients could still be present, but it means that scientists need to take a closer look," wrote Cambridge ...

creating a spatial magnetic field gradient. The distribution of the magnetic field outside of the main magnet (also called the fringe field) is impossible to see, but it is critical to safety in ...