Radiation and General Safety
Radiation Protection Basics
Thermo Scientific
NITON XL3 Analyzer User’s Guide
3-3
Table 3-1. Typical Radiation Doses Received (Source: NCRP 1987)
Category
Dose in mrem
Dose in mSv
Average total dose in US (annual)
360
3.6
Average worker exposure (annual)
210
2.1
Average exposure for an underground miner
400
4.0
Exposure for airline crew (1,000 hours at 35,000
ft)
500
5.0
Additional from living in Denver at 5300’
(annual)
25
.25
Additional from 4 pCi/l radon in home
1,000
10.0
Typical Chest X-Ray
6
0.06
Typical Head or Neck X-Ray
20
0.2
Typical pelvis/hip x-ray
65
0.65
Typical lumbar spine x-ray
30
0.3
Typical Upper G.I. x-ray
245
2.45
Typical Barium enema x-ray
405
4.05
Typical CAT scan
110
1.10
Table 3-2. Annual Occupational Dose Limits for Radiation Workers
(Source: Code of Federal regulations Title 10, Part 20)
Category
Dose in mrem
Dose in mSv
Whole Body
5000
50
Pregnant Worker (during gestation period)
500
5
Eye Dose Equivalent
15,000
150
Shallow dose equivalent to the skin or any
extremity or organ
50,000
500
Maximum allowable dose for the general
public (annual)
100
1.0
For a Minor
500
5.0
Содержание NITON XL3t 500
Страница 1: ...NITON XL3t 500 Analyzer User s Guide Version 6 5 ...
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Страница 22: ...Applications Live Spectrum Feed 1 8 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Страница 40: ...The Measurement Screen 1 26 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Страница 66: ...The View Data Screen 1 52 NITON XL3 Analyzer User s Guide Thermo Scientific Figure 1 8 The SpectraView Screen ...
Страница 120: ...The Sort Element Display Menu 1 106 NITON XL3 Analyzer User s Guide Thermo Scientific Figure 1 40 Save Changes ...
Страница 160: ...Entering Data with a Barcode reader 2 32 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Страница 182: ...Radiation and General Safety Contact Information 3 22 NITON XL3 Analyzer User s Guide Thermo Scientific ...
Страница 200: ...Appendix F Appendices xviii NITON XL3 Analyzer User s Guide Thermo Scientific ...