Earth's Field Nuclear Magnetic Resonance by TeachSpin, a Low Field NMR Apparatus

Earth's Field NMR

A Conceptual Introductionto NMR

Observe both Proton and Fluorine Free Precession
Discover both the Curie Law and Spin-Lattice Relaxation
Measure Spin-Lattice Relaxation as a Function of:
- Paramagnetic Ion Concentration
- Viscosity
- Temperature
Observe and Measure Proton-Fluorine J-Coupling
Measure Absolute Value of g_proton/g_fluorine
Precisely Measure Earth's Magnetic Field
Hear the Precessions on Built-In Audio System
Study Bucking Coils for Enhancing Signal-to-Noise
Examine Effects of Tuning on Signal-to-Noise

It is hard to imagine a college physics or chemistry major graduating without having performed some kind of magnetic resonance experiment. Magnetic resonance has been, and clearly will continue to be, an important experimental tool in the arsenal of physicists, chemists, biologists and medical diagnosticians. Recent developments in quantum computing seem to indicate that magnetic resonance might become the basic platform of computer science hardware. There is no doubt that science majors should have a basic understanding of this type of spectroscopy.

TeachSpin, in collaboration with Professor Bill Melton of the University of North Carolina at Charlotte, has developed THE experiment to introduce sophomore, junior, or even senior physics majors to the exciting field of magnetic resonance. This new equipment allows students to perform experiments that naturally lead them to an understanding of precession, Curie's Law of paramagnetism, spin-lattice relaxation and even spin-spin coupling. The apparatus lends itself to inquiry based explorations. Its adjustable variables and magnetic resonance signals are all on a human scale. That is, the polarization times are in seconds, and precession frequencies are in the audio range. This significantly enhances the students' connection to the laboratory experience. We are confident that this instrument will become a "new classic," replacing the old, enigmatic marginal oscillator.

Learn about the Earth's Field NMR Gradient/Field Coil System.