Kansas Administrative Regulations › Agency 28 - DEPARTMENT OF HEALTH AND ENVIRONMENT › Article 35 - RADIATION › Section 28-35-135n - Definitions

Current through Register Vol. 43, No. 28, July 11,
			 2024
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.