Current through Register Vol. 43, No. 49, December 5, 2024
Section 28-35-135n - Definitions As used in these regulations, each of the following terms shall have the meaning specified in this regulation:
(a)"NARM" means any naturally occurring or accelerator-produced radioactive material, not including by-product, source, or special nuclear material.(b)"Nationally tracked source" means a sealed source containing any quantity of radioactive material equal to or greater than any threshold listed in the table in this subsection. For purposes of the definition of nationally tracked source," sealed source" shall be defined as radioactive material that is sealed in a capsule or closely bonded, that is in a solid form, and that is not exempt from regulatory control. For purposes of the definition of"nationally tracked source,""sealed source" shall not include any radioactive material encapsulated solely for disposal and any nuclear material contained in any fuel assembly, subassembly, fuel rod, or fuel pellet. Category I nationally tracked sources contain radioactive material in quantities equal to or greater than the category 1 threshold. Category 2 nationally tracked sources contain radioactive material in quantities equal to or greater than the category 2 threshold but less than the category 1 threshold. Nationally tracked source thresholds
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 |
* 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 and are rounded after conversion.
(c)"Natural radioactivity" means the radioactivity of naturally occurring nuclides.(d)"Non-fixed contamination" means contamination that can be removed from a surface during normal conditions of transport.(e)"Nonionizing radiation" means radiation not capable of producing ionization, including sound and radio waves and visible, infrared, or ultraviolet light.(f)"Non-stochastic effect" means a health effect, the severity of which varies with the dose and for which a threshold is believed to exist. For purposes of these regulations,"deterministic effect" shall be considered an equivalent term.(g)"Normal operating procedures" means operating procedures for conditions suitable for routine purposes with shielding and barriers in place, including routine alignment procedures. This term shall not include maintenance procedures and routine and emergency radiation safety considerations.(h)"Normal treatment distance" means either of the following: (1) For electron irradiation, the distance from the virtual source to the surface along the central axis of the useful beam, as specified by the manufacturer; or(2) for X-ray irradiation, the distance from the virtual source to the isocenter along the central axis of the useful beam. For non-isocentric equipment, this distance shall be the distance specified by the manufacturer.(i)"Nuclear regulatory commission,""NRC," and commission" mean the U.S. nuclear regulatory commission or its authorized representatives.(j)"NVLAP" means the national voluntary laboratory accreditation program. Kan. Admin. Regs. § 28-35-135n
Authorized by K.S.A. 48-1607; implementing K.S.A. 2020 Supp. 48-1603 and K.S.A. 48-1607; effective Dec. 30, 2005; amended July 27, 2007; amended by Kansas Register Volume 41, No. 11; effective 4/1/2022.