Wisconsin Administrative Code › Department of Health Services › DHS 110-199 - Health › Chapter DHS 157 - Radiation Protection › Subchapter I - General Provisions › Section DHS 157.03 - Definitions

Current through June 24, 2024
In this chapter:
(1) "A1" means the
				  maximum activity of special form radioactive material permitted in a Type A
				  package. This value is either listed in Table VI and Table VIII in ch. DHS 157
				  Appendix O or may be derived under the procedures prescribed in ch. DHS 157
				  Appendix O.
(2)
				  "A2" means the maximum activity of radioactive material,
				  other than special form material, LSA and SCO material, permitted in a Type A
				  package. This value is either listed in Table VI and Table VIII in ch. DHS 157
				  Appendix O or may be derived under the procedures prescribed in ch. DHS 157
				  Appendix O.
(3) "Absorbed dose or
				  "D" means the energy imparted by ionizing radiation per unit of mass of
				  irradiated material. The units of absorbed dose are the rad and the gray
				  (Gy).
(4) "Absorbed dose rate"
				  means absorbed dose per unit time, for machines with timers, or dose monitor
				  unit per unit time for accelerators.
(5) "Accelerator" or "particle accelerator"
				  means any machine capable of accelerating electrons, protons, deuterons or
				  other charged particles in a vacuum and of discharging the resultant particle
				  or other radiation into a medium at energies usually in excess of one
				  MeV.
(6) "Accelerator-produced
				  radioactive material" means any material made radioactive by an
				  accelerator.
(6m) "Access control"
				  means a system for allowing only approved individuals to have unescorted access
				  to the security zone and for ensuring that all other individuals are subject to
				  escorted access.
(7) "Accessible
				  surface" means surface of equipment or of an equipment part, housing or
				  enclosure of the radiation producing machine that may be easily or accidentally
				  touched by persons without the use of a tool.
(8) "Act" means ss.
				  254.31 to
				  254.45, Stats.
(9) "Activity" means the rate of
				  disintegration or transformation or decay of radioactive material. The units of
				  activity are the becquerel and the curie.
(10) "Added filtration" means any filtration
				  which is in addition to the inherent filtration.
(11) "Address of use" means the building or
				  buildings that are identified on the license and where radioactive material may
				  be received, used or stored.
(12)
				  "Adult" means an individual 18 or more years of age.
(12m) "Aggregated" means accessible by the
				  breach of a single physical barrier that would allow access to radioactive
				  material in any form, including any devices that contain the radioactive
				  material.
Note:
An aggregated total activity equal or
					 exceeding a category 2 to quantity of radioactive material exceeds the
					 thresholds set forth in ch. DHS 157 Appendix U.
(13) "Agreement state" means any state with
				  which the U.S. nuclear regulatory commission or the U.S. atomic energy
				  commission has entered into an effective agreement under subsection 274b of the
				  atomic energy act of 1954, as amended.
(14) "Air-purifying respirator" means a
				  respirator with an air-purifying filter, cartridge, or canister that removes
				  specific air contaminants by passing ambient air through the air-purifying
				  element.
(15) "Airborne radioactive
				  material" means any radioactive material dispersed in the air in the form of
				  dusts, fumes, particulates, mists, vapors or gases.
(16) "Airborne radioactivity area" means a
				  room, enclosure or area in which airborne radioactive materials, composed
				  wholly or partly of licensed material, exist in concentrations that meet either
				  of the following criteria:
(a) In excess of
				  the derived air concentrations specified in ch. DHS 157 Appendix E, table
				  I.
(b) An individual present in the
				  area without respiratory protective equipment could exceed, during the hours an
				  individual is present in a week, an intake of 0.6% of the annual limit on
				  intake or 12 DAC-hours.