MRI Basics | Alignment

What happens, when we put a patient into the magnet of an MR machine? This video describes the alignment of magnetic moments of Hydrogen nuclei (protons) with an external magnetic field. A proton has a spin, and thus the electrical charge of the proton also moves. A moving electrical charge is an electrical current, and this is accompanied by a magnetic field. Thus, the proton has its own magnetic field and it can be seen as a little bar Magnet. FAIR-USE COPYRIGHT DISCLAIMER * Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, commenting, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. 1) This video has no negative impact on the original works 2) This video is also for teaching purposes. 3) It is transformative in nature.