Table 1. Unladed and loaded Q values of the MS coil, trapped DT coil and monopole/loop DT coil.

	23Na (78.6 MHz)				1H (297.2 MHz)
	MS coil	Trapped DT	M/L DT		Trapped DT	M/L DT
Qun	425	225	414		110	9.1
Qload	74	70	73		30	2.8
Qun/Qload	5.74	3.21	5.67		3.67	3.25

MS, mononuclear sodium; DT, dual-tuned; Q, quality.