Tissue Rep Depth NRF PBC NSC RSC Cerebellum 1 8,916,167 0.96 0.84 1.71 1.77 Cerebellum 2 12,936,475 0.95 0.81 1.84 1.34 Liver 1 9,837,639 0.96 0.83 1.73 1.19 Liver 2 12,958,130 0.96 0.82 1.57 0.99 Spleen 1 19,407,891 0.98 0.78 1.44 0.85 Spleen 2 14,571,324 0.94 0.81 1.56 0.91