Periodic Table of Isotopes: Helium

NMR Observation Frequencies

NMR observation frequencies in MHz for each magnetic field value found in NMR magnets at the MagLab.

Helium MHz 200 300 400 500 600 720 750 830 900 1065 3He 152 229 305 381 457 548 571 632 686 810.5 Tesla 4.70 7.05 9.40 11.7 14.1 16.9 17.6 19.6 21.2 25.0

Other Properties

	Spin	Gamma (rad/T)	Abundance (%)	Sensitivity	Absolute sensitivity	Chemical shift (ppm)
3He	1/2	2.038e8	0.00013	0.44	5.72e-7