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. Author manuscript; available in PMC: 2014 Feb 3.
Published in final edited form as: Health Phys. 2012 Mar;102(3):305–325. doi: 10.1097/hp.0b013e3182351660

Table 9.

Ratios of the count rate thresholds (250 mSv effective dose) for the adult female to corresponding values for the adult male as a function of time post-intake and detector screening distance. The exposure is an I ingestion exposure, and the screening is performed in the AP chest position using a Ludlum 12S survey meter.

Screening distance - AP chest
Time (days) 6 cm
ratio F/M
30 cm
ratio F/M
100 cm
ratio F/M
200 cm
ratio F/M
0.01 1.03 1.12 1.10 1.05
0.04 1.35 1.24 1.16 1.09
0.06 1.57 1.32 1.20 1.11
0.10 1.74 1.38 1.22 1.13
0.40 1.57 1.26 1.16 1.08
0.60 139 1.17 1.11 1.05
1.00 1.16 1.06 1.04 1.01
2.00 1.00 1.00 1.00 0.98
4.00 0.99 1.00 1.00 0.98
8.00 0.99 1.00 1.00 0.98
10.00 0.99 1.00 1.00 0.98
20.00 0.98 1.00 1.01 0.98
30.00 0.98 1.01 1.01 0.98