Glossary cont'd - doe-std-1136-20040230

DOE-STD-1136-2004

Guide of Good Practices for Occupational Radiation Protection in Uranium Facilities

occupational exposure: An individual's exposure to ionizing radiation (external and internal) as a result of

that individual's work assignment. Occupational exposure does not include planned special exposures,

exposure received as a medical patient, background radiation, or voluntary participation in medical research

programs. (10 CFR 835)

personal air monitoring: A form of breathing zone air monitoring that involves the sampling of air in the

immediate vicinity (typically within one foot) of an individual's nose and mouth, usually by a portable

sampling pump and collection tube (e.g., a lapel sampler) worn on the body. (Air Monitoring Guide)

portable air sampler: An air sampler designed to be moved from area to area.

radiation area: Any area, accessible to individuals , in which radiation levels could result in an individual

receiving a deep dose equivalent in excess of 0.005 rem (0.05 millisievert) in 1 hour at 30 cm from the

source or from any surface that the radiation penetrates. (10 CFR 835)

radiation-generating device (RDG): The collective term for devices which produce ionizing radiation,

including certain sealed radioactive sources, small particle accelerators used for single purpose applications

which produce ionizing radiation (e.g., radiography), and electron-generating devices that

produce x-rays incidentally. (Radiation-Generating Devices Guide )

radioactive material: Any material that spontaneously emits ionizing radiation (e.g., X- or gamma rays,

alpha or beta particles, neutrons). The term "radioactive material" also includes materials onto which

radioactive material is deposited or into which it is incorporated. For purposes of practicality, both 10 CFR

835 and this Standard establish certain threshold levels below which specified actions, such as posting,

labeling, or individual monitoring, are not required. These threshold levels are usually expressed in terms of

total activity or concentration, contamination levels, individual doses, or exposure rates. (RCS)

radioactive material area: Any area within a controlled area, accessible to individuals, in which items or

containers of radioactive material exist and the total activity of radioactive material exceeds the applicable

values provided in appendix E of 10 CFR 835. (10 CFR 835)

radiological area: Any area within a controlled area which must be posted as a "radiation area," "high

radiation area," "very high radiation area," "contamination area," "high contamination area," or "airborne

radioactivity area" in accordance with 10 CFR 835. (10 CFR 835)

radiological worker: A general employee whose job assignment involves operation of radiation-

producing devices or working with radioactive materials, or who is likely to be routinely occupationally

exposed above 0.1 rem (0.001 sievert) per year total effective dose equivalent. (10 CFR 835)

radiological work permit (RWP): The permit that identifies radiological conditions, establishes worker

protection and monitoring requirements, and contains specific approvals for radiological work activities.

The Radiological Work Permit serves as an administrative process for planning and controlling

radiological work and informing the worker of the radiological conditions. (RCS)

radiological control organization: An organization responsible for radiation protection. (Sealed

Radioactive Source Accountability and Control Guide )

A-4