Fig. 9.

Estimated NEC values at 10 mCi activity at varying maximum ring differences used in SSRB. The (A) 2.1-D, (B) 2.5-D, and (C) 2.9-D data sets are shown representatively.

Estimated NEC values at 10 mCi activity at varying maximum ring differences used in SSRB. The (A) 2.1-D, (B) 2.5-D, and (C) 2.9-D data sets are shown representatively.