Table I. Typical x-ray absorbed dose.
Source of Exposure	Absorbed Dose (mGy)
Extremities x-ray	0.010
Chest x-ray	0.080
Dental x-ray	0.100
Head/neck x-ray	0.200
Hip x-ray	0.830
Upper GI Series	2.45
CT (head and body)	1.10
x-ray shoe fitter	100-1,160

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Table II. Ionizing radiation dose equivalent from various sources.
Source of Exposure	Dose Equivalent
Average dose to U.S. public from all sources	3.60 mSv/yr
Occupational exposure limits for declared pregnant women radiation workers	5 mSv/yr
Occupational dose limit for radiation workers	50 mSv/yr
X-ray shoe fitter (leakage within 10 ft of back for 2 hours per day)	2 mSv/day

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