CHAPTER II: ILLINOIS EMERGENCY MANAGEMENT AGENCY
SUBCHAPTER b: RADIATION PROTECTION
PART 330 LICENSING OF RADIOACTIVE MATERIAL
SECTION 330.APPENDIX F NATIONALLY TRACKED SOURCE THRESHOLDS
Section 330.APPENDIX F 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 |
Category 1 |
Category 2 |
Category 2 |
|
|
(TBq) |
(Ci) |
(TBq) |
(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 |
(Source: Added at 32 Ill. Reg. 6462, effective April 7, 2008)