circulation △E and Magnet Strength Energy difference is proportional to the magnetic field strength. 。△E=hv=YhB0 2元 Gyromagnetic ratio,y,is a constant for each nucleus(26,753 s-1gauss-1 for H). In a 14,092 gauss field,a 60 MHz photon is required to flip a proton. Low energy,radio frequency. => Chapter 13 6 Chapter 13 6 E and Magnet Strength • Energy difference is proportional to the magnetic field strength. • E = h =  h B0 2 • Gyromagnetic ratio, , is a constant for each nucleus (26,753 s-1gauss-1 for H). • In a 14,092 gauss field, a 60 MHz photon is required to flip a proton. • Low energy, radio frequency. =>