Alabama Administrative Code
Title 420 - ALABAMA STATE BOARD OF HEALTH
Chapter 420-3-26 - RADIATION CONTROL
Section 420-3-26-.03 - Standards For Protection Against Radiation
Appendix D - Nationally Tracked Source Thresholds
The Terabecquerel (TBq) values are the regulatory standard. The curie (Ci) values specified are obtained by converting from the TBq value. The curie values are provided for practical usefulness only and are rounded after conversion.
|
Radioactive material |
Category 1 (TBq) |
Category 1 (Ci) |
Category 2 (TBq) |
Category 2 (Ci) |
|
Actinium-227 |
20 |
540 |
0.2 |
5.4 |
|
Americium-241 |
60 |
1,600 |
0.6 |
16 |
|
Americium-241/Be |
60 |
1,600 |
0.6 |
16 |
|
Californium-252 |
20 |
540 |
0.2 |
5.4 |
|
Cobalt-60 |
30 |
810 |
0.3 |
8.1 |
|
Curium-244 |
50 |
1,400 |
0.5 |
14 |
|
Cesium-137 |
100 |
2,700 |
1 |
27 |
|
Gadolinium-153 |
1,000 |
27,000 |
10 |
270 |
|
Iridium-192 |
80 |
2,200 |
0.8 |
22 |
|
Plutonium-238 |
60 |
1,600 |
0.6 |
16 |
|
Plutonium-239/Be |
60 |
1,600 |
0.6 |
16 |
|
Polonium-210 |
60 |
1,600 |
0.6 |
16 |
|
Promethium-147 |
40,000 |
1,100,000 |
400 |
11,000 |
|
Radium-226 |
40 |
1,100 |
0.4 |
11 |
|
Selenium-75 |
200 |
5,400 |
2 |
54 |
|
Strontium-90 |
1,000 |
27,000 |
10 |
270 |
|
Thorium-228 |
20 |
540 |
0.2 |
5.4 |
|
Thorium-229 |
20 |
540 |
0.2 |
5.4 |
|
Thulium-170 |
20,000 |
540,000 |
200 |
5,400 |
|
Ytterbium-169 |
300 |
8,100 |
3 |
81 |
