Fla. Admin. Code Ann. R. 64E-5.106 - Units of Exposure and Dose
QUALITY FACTORS AND ABSORBED DOSE EQUIVALENCIES
Absorbed Dose Equal | |||
Quality Factor | to a Unit Dose | ||
TYPE OF RADIATION | (Q) | Equivalent^{a} | |
X, gamma, or beta radiation and | 1 | 1 | |
high-speed electrons | |||
Alpha particles, multiple-charged | 20 | 0.05 | |
particles, fission fragments and heavy | |||
particles of unknown charge | |||
Neutrons of unknown energy | 10 | 0.1 | |
High-energy protons | 10 | 0.1 |
^{a} Absorbed dose in rad equal to 1 rem or the absorbed dose in gray equal to 1 Sv.
MEAN QUALITY FACTORS, Q, AND FLUENCE PER UNIT DOSE EQUIVALENT FOR MONOENERGETIC NEUTRONS
Fluence per Unit | Fluence per Unit | |||
Neutron | Quality | Dose Equivalent^{b} | Dose Equivalent^{b} | |
Energy | Factor^{a} | (neutrons | (neutrons | |
(MeV) | (Q) | cm^{-2} rem^{-1}) | cm^{-2} Sv^{-1}) | |
(thermal) | 2.5 x 10^{-8} | 2 | 980 x 10^{6} | 980 x 10^{8} |
1 x 10^{-7} | 2 | 980 x 10^{6} | 980 x 10^{8} | |
1 x 10^{-6} | 2 | 810 x 10^{6} | 810 x 10^{8} | |
1 x 10^{-5} | 2 | 810 x 10^{6} | 810 x 10^{8} | |
1 x 10^{-4} | 2 | 840 x 10^{6} | 840 x 10^{8} | |
1 x 10^{-3} | 2 | 980 x 10^{6} | 980 x 10^{8} | |
1 x 10^{-2} | 2.5 | 1010 x 10^{6} | 1010 x 10^{8} | |
1 x 10^{-1} | 7.5 | 170 x 10^{6} | 170 x 10^{8} | |
5 x 10^{-1} | 11 | 39 x 10^{6} | 39 x 10^{8} | |
1 | 11 | 27 x 10^{6} | 27 x 10^{8} | |
2.5 | 9 | 29 x 10^{6} | 29 x 10^{8} | |
5 | 8 | 23 x 10^{6} | 23 x 10^{8} | |
7 | 7 | 24 x 10^{6} | 24 x 10^{8} | |
10 | 6.5 | 24 x 10^{6} | 24 x 10^{8} | |
14 | 7.5 | 17 x 10^{6} | 17 x 10^{8} | |
20 | 8 | 16 x 10^{6} | 16 x 10^{8} | |
40 | 7 | 14 x 10^{6} | 14 x 10^{8} | |
60 | 5.5 | 16 x 10^{6} | 16 x 10^{8} | |
1 x 10^{2} | 4 | 20 x 10^{6} | 20 x 10^{8} | |
2 x 10^{2} | 3.5 | 19 x 10^{6} | 19 x 10^{8} | |
3 x 10^{2} | 3.5 | 16 x 10^{6} | 16 x 10^{8} | |
4 x 10^{2} | 3.5 | 14 x 10^{6} | 14 x 10^{8} |
^{a}Value of quality factor at the point where the dose equivalent is maximum in a 30-cm diameter cylinder tissue-equivalent phantom.
^{b}Monoenergetic neutrons incident normally on a 30-cm diameter cylinder tissue-equivalent phantom.
Notes
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