MR-active Nuclei - Video Lesson

Hey, everybody. Welcome to today's lesson about the basic principles of MRI. This lesson focuses on m r active nuclei, Faraday's law, the magnetic moments of m r active nuclei, and why hydrogen is the nucleus of choice in medical MRI. First, let's define what m r active nuclei are. M r active nuclei possess properties that make them responsive to magnetic fields, hence the term m r active. The sum of these protons and neutrons is an odd number, which gives them a property known as angular momentum or spin. Because m r active nuclei have an odd number of neutrons and protons, they are off balance, so they spin at an angle instead of directly around their central axis. An odd number of items in the nucleus creates an environment that is easy to manipulate. Think about a person standing on one leg. They're more off balance and more likely to move.