Table 20.

Constants for the relation ${\dot{X}}_n=a+b\sin \theta$, and the normalized mean exposure rates for two seed types. The mean exposure rate is derived from data which were normalized to the exposure rate from the array in a direction perpendicular to the plane of the array.

Source array	a	b	${\overline{\dot{\mathit{X}}}}_{\mathit{n}}$
Silver-wire	0.20	0.85	0.87
Gold-marker	0.09	0.92	0.81