TABLE 1

Cellular S Values for ²¹³Po

R_C (μm)	R_N (μm)	S(C ← C) (Gy/Bq/s)	S(C ← CS) (Gy/Bq/s)	S(N ← N) (Gy/Bq/s)	S(N ← Cy) (Gy/Bq/s)	S(N ← CS) (Gy/Bq/s)
3	2	1.95E−01	1.30E−01	4.37E−01	1.50E−01	9.74E−02
3	1	1.95E−01	1.30E−01	1.74E+00	1.97E−01	8.97E−02
4	3	1.10E−01	7.36E−02	1.95E−01	8.02E−02	5.70E−02
4	2	1.10E−01	7.36E−02	4.37E−01	9.66E−02	5.23E−02
5	4	7.05E−02	4.72E−02	1.10E−01	4.99E−02	3.76E−02
5	3	7.05E−02	4.72E−02	1.95E−01	5.73E−02	3.45E−02
5	2	7.05E−02	4.72E−02	4.37E−01	6.75E−02	3.29E−02
6	5	4.91E−02	3.29E−02	7.05E−02	3.41E−02	2.67E−02
6	4	4.91E−02	3.29E−02	1.10E−01	3.80E−02	2.46E−02
6	3	4.91E−02	3.29E−02	1.95E−01	4.32E−02	2.34E−02
7	6	3.62E−02	2.42E−02	4.91E−02	2.48E−02	2.01E−02
7	5	3.62E−02	2.42E−02	7.05E−02	2.71E−02	1.85E−02
7	4	3.62E−02	2.42E−02	1.10E−01	3.01E−02	1.76E−02
7	3	3.62E−02	2.42E−02	1.95E−01	3.38E−02	1.70E−02
8	7	2.77E−02	1.86E−02	3.62E−02	1.89E−02	1.56E−02
8	6	2.77E−02	1.86E−02	4.91E−02	2.03E−02	1.45E−02
8	5	2.77E−02	1.86E−02	7.05E−02	2.22E−02	1.38E−02
8	4	2.77E−02	1.86E−02	1.10E−01	2.45E−02	1.33E−02
9	8	2.20E−02	1.48E−02	2.77E−02	1.49E−02	1.25E−02
9	7	2.20E−02	1.48E−02	3.62E−02	1.58E−02	1.16E−02
9	6	2.20E−02	1.48E−02	4.91E−02	1.71E−02	1.11E−02
9	5	2.20E−02	1.48E−02	7.05E−02	1.86E−02	1.07E−02
10	9	1.79E−02	1.21E−02	2.20E−02	1.21E−02	1.03E−02
10	8	1.79E−02	1.21E−02	2.77E−02	1.27E−02	9.59E−03
10	7	1.79E−02	1.21E−02	3.62E−02	1.35E−02	9.15E−03
10	6	1.79E−02	1.21E−02	4.91E−02	1.46E−02	8.82E−03
10	5	1.79E−02	1.21E−02	7.05E−02	1.57E−02	8.59E−03

R_C = cellular radius; R_N = nuclear radius; C = cell volume; CS = cell surface; N = nucleus; Cy = cytoplasm; S(X ← Y) = S factor for X target and Y source.