Nebraska Administrative Code › Topic - HEALTH AND HUMAN SERVICES SYSTEM › Title 180 - CONTROL OF RADIATION › Chapter 1 - GENERAL PROVISIONS › Section 180-1-002 - DEFINITIONS

Current through June 17, 2024
The definitions in the Radiation Control Act and the following
	 definitions apply to all chapters within Title 180 of the Nebraska
	 Administrative Code (NAC).
002.01
A1.
The term A1 is the maximum activity of special
  form radioactive material permitted in a Type A package. This value is either
  listed in Appendix A of 180 NAC 13, Table A-1, or may be derived as specified
  in Appendix A of 180 Nebraska Administrative Code (NAC) 013.
002.02
A2.
The term
  A2 is the maximum activity of radioactive material, other than special form,
  Low Specific Activity (LSA) and Surface Contaminated Object (SCO) material,
  permitted in a Type A package. These values are either listed in Appendix A of
  180 NAC 13, Table A-1, or may be derived as prescribed in Appendix A of 180 NAC
  013.
002.03
ABSORBED
  DOSE (D).
The energy imparted by ionizing radiation to matter is
  described by the term absorbed dose. Absorbed dose is determined as the
  quotient of dE by dM, where dE is the mean energy imparted by ionizing
  radiation to matter of mass dM. The International System of Units (SI) unit of
  absorbed dose is joule per kilogram and the special name of the unit of
  absorbed dose is the gray (Gy). The previously used special unit of absorbed
  dose (rad) is being replaced by the gray.
002.04
ACCELERATOR.
An accelerator is any machine capable of accelerating electrons, protons,
  deuterons, or other charged particles in a vacuum and of discharging the
  resultant particulate or other radiation into a medium at energies usually in
  excess of 1 megaelectron volt. Particle accelerator is an equivalent
  term.
002.05
ACCELERATOR PRODUCED MATERIAL.
Accelerator produced
  material is any material made radioactive by a particle accelerator.
002.06
ACTIVITY.
Activity is the rate of disintegration or transformation or decay of
  radioactive material. The units of activity are the becquerel (Bq) and the
  curie (Ci).
002.07
ADULT.
An adult is an individual 18 or more years of
  age.
002.08
AGREEMENT
  STATE.
An agreement state is any state with which the United
  States Nuclear Regulatory Commission (NRC) or the United States Atomic Energy
  Commission has entered into an effective agreement under subsection 274b. of
  the Atomic Energy Act of 1954, as amended (73 Stat. 689). Non-agreement State
  is any other State.
002.09
AIRBORNE RADIOACTIVE MATERIAL.
Airborne radioactive
  material is any radioactive material dispersed in the air in the form of dusts,
  fumes, particulates, mists, vapors, or gases.
002.10
AIRBORNE RADIOACTIVITY
  AREA.
Airborne radioactivity area is a room, enclosure, or area in
  which airborne radioactive materials exist in concentrations:
(A) In excess of the derived air
  concentrations (DACs) specified in Appendix B, Table I of 180 NAC 4,
  or
(B) To such a degree that 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
  (ALI) or 12 DAC-hours.