Glossary cont'd - doe-std-1128-98

DOE-STD-1128-98

Report No. 11, Limiting Values of Radionuclide Intake and Air Concentration and Dose

Conversion Factors for Inhalation, Submersion, and Ingestion, published September 1988. (10

CFR 835)

detector: A device or component that produces a measurable response to ionizing radiation.

(Portable Instrument Calibration IG)

DOELAP: The Department of Energy Laboratory Accreditation Program for personnel

dosimetry. (RCS)

dose: The amount of energy deposited in body tissue due to radiation exposure. (RCS)

exposure: The general condition of being subjected to ionizing radiation, such as by exposure to

ionizing radiation from external sources or to ionizing radiation sources inside the body. In this

document, exposure does not refer to the radiological physics concept of charge liberated per unit

mass of air. (Internal Dosimetry IG)

fissionable materials: A nuclide capable of sustaining a neutron - induced fission chain reaction

(e.g., uranium-233, uranium-235, plutonium-238, plutonium 239, plutonium -241, neptunium-

237, americium- 241 and curium-244) (10 CFR 830).

fixed contamination: Any area with detectable removable contamination less than the removable

contamination values of Appendix D of 10 CFR 835 and fixed contamination at levels that

exceed the total contamination values of Appendix D of 10 CFR 835. (Posting and Labeling IG)

fixed-location sampler: An air sampler located at a fixed location in the workplace.

grab sampling: A single sample removed from the workplace air over a short time interval,

typically less than one hour.

hazardous waste: Because of its quantity, concentration, and physical, chemical, or infectious

characteristics, hazardous waste may cause or significantly contribute to an increase in mortality,

or an increase in serious irreversible or incapacitating reversible illness; it may pose a potential

hazard to human health or the environment when improperly treated, stored, transported, disposed

of, or otherwise managed. (DOE/S-0101)

high contamination area: Any area where removable contamination levels are greater than 100

times the removable values specified in appendix D of 10 CFR 835. (10 CFR 835)

high-efficiency particulate air (HEPA) filter: Throwaway extended pleated medium dry-type

filter with 1) a rigid casing enclosing the full depth of the pleats, 2) a minimum particle removal

efficiency of 99.97% for thermally generated monodisperse di-octyl phlalate smoke particles with

a diameter of 0.3 m, and 3) a maximum pressure drop of 1.0 in. w.g. when clean and operated at

its rated airflow capacity. (RCS)

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

an individual receiving a deep dose equivalent in excess of 0.1 rem (0.001 sievert) in 1 hour at 30

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

HLW: High-level waste (HLW) is the material that remains following the reprocessing of spent

nuclear fuel and irradiated targets from reactors. The HLW is highly radioactive and generates

A-3