Table 4.

Estimated first-year photon doses from external irradiation (mGy) for all age groups and a range of TOA values, at a location where $\stackrel{·}{X}$(12) equals 330 mR h⁻¹.

	Age group
TOA (h)	In utero	0–12 mo	1–2 y	>2–7 y	>7–12 y	>12–17 y	>17 y
2	61	80	80	73	73	68	61
4	49	63	63	58	58	54	49
6	44	57	57	52	52	48	44
9	39	51	51	47	47	44	39
12	37	48	48	44	44	41	37
18	33	43	43	39	39	36	33
24	30	40	40	36	36	34	30
48	25	33	33	30	30	28	25