Applied quantum physics in magnetic resonance imaging (MRI) using spin modification through magnetic fields and RF pulses. Currently no longer available as an animation, but accessible here as a YouTube video in English, free of charge. Click on the image to start the video. However, as a multilingual app for your smartphone, tablet, or TV, it is still available at:
Animation & Explanation of BIGS
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Explanation of the Topic: „Modification of a Spin Using Magnetic Fields and RF Pulses in MRI“
The spin can be influenced by magnetic fields or RF pulses. In a static homogeneous magnetic field, it precesses around the direction of the magnetic field. Through a relaxation process, it aligns with the direction of the external field after a certain time, determined by the so-called longitudinal relaxation time T1. In a microwave field (RF pulses), the spin direction can be altered within short periods. The transverse relaxation time is T2. For tissue examinations (determining T1 and T2), deflections of 90° or 180° from the stationary field direction have proven effective. In such studies, the repetition rate, i.e., the time interval between RF pulses, is also significant.
To deepen your knowledge of the quantum physical processes in MRI, you can explore additional resources through book recommendations available on Amazon by clicking the next button:
Book Recommendation on Amazon: Spin, Quantum Physics
Book Recommendation on Amazon: Nuclear Magnetic Resonance Imaging – MRI
Or, if you just want to browse a bit more on Amazon, click the following button: