CW NMR

Experiment Guide
1.  Pre-Lab
2.  CW NMR Guide
Related Material
1.  Melissinos (2003) Ch 7
Useful Links
1.  Washington
2.  Windsor
3.  Nobel Prize
4.  Book on NMR

 

 

 

 

 

 

Overview

In this experiment you will observe nuclear magnetic resonance using a radio frequency (RF) field applied to a proton sample placed in a large DC magnetic field with a small AC component. As the sample passes through resonance the RF field flips the proton spins from the ground state to the excited state. The resonance signature is the signal from the proton spins relaxing back to the ground state. The resonant frequency is measured at different magnetic field values, and from these measurements the gyromagnetic ratio of the proton is derived. Similar measurements are performed on other samples.