Modeling of resonant absorbtion

Hello,

I am wondering if it is possible for COMSOL to model the resonant absorption of protons in a static magnetic field.

For example, if I had a 1T field along the Z-axis with a water phantom inside, I would expect to see resonant absorption if I applied a 42.58 MHz RF pulse at 90 degrees to the Z-axis.

I am currently working on modeling this and would just like to know if such a thing is possible.

Thank you