A term relating to the amount of ionizing radiation that is incident upon living or inanimate material.
A measurement of the amount of ionization produced by x-rays or gamma rays as they travel through air. The unit of radiation exposure is the roentgen, named for Wilhelm Roentgen, the German scientist who discovered x-rays in 1895
a measure of the number of ionizations produced by gamma or x rays in a volume of air; expressed in units of roentgen
(radiation) a term relating to the amount of ionizing radiation that strikes a living or inanimate material. (This is a general definition. In health physics, exposure is specifically defined as a measure of ionization in air caused by x-ray or gamma radiation only.) Exposure Pathways return to: [] [ Click "BackButton" for previous location] | | | | | | | | | | | | | | | | | | | | | | | xyz
a measure of ionization in air caused by x-rays or gamma rays only. The unit of exposure most often used is the roentgen. See also contamination.
The Roentgen is defined as the amount of x- and/or gamma-ray radiation that produces a specific charge in dry air. 1 Roentgen (R) = 2.08 X 109 ion-pairs / 1cc dry air
A term relating to the amount of ionizing radiation that strikes a living or inanimate material. (This is a general definition. In health physics, exposure is specifically defined as a measure of ionization in air caused by x-ray or gamma radiation only.) [For additional information see Understanding Radiation: Exposure Pathways.] return to: [] [ previous location
A measure of x or gamma radiation at a certain place, based on its ability to produce ionization in air. The roentgen (R) is a unit of exposure.
A measure of the ionizations produced in air by x-ray orgamma radiation. Sometimes used to mean dose.
The process whereby radiation is recorded on an imaging system.
An exposure is the measure of the amount of ionization produced by x-rays or gamma rays as they travel through air. The unit of radiation exposure is the roentgen (R), named for Wilhelm Roentgen, the German scientist who in 1895 discovered x-rays.
Being exposed to radiation.
A quantity used to indicate the amount of ionization in air produced by x- or gamma-ray radiation. The unit is the roentgen (R). For practical purposes, one roentgen is comparable to 1 rad or 1 rem for X and gamma radiation. The SI unit of exposure is the coulomb per kilogram (C/kg). One R = 2.58 x 10-4 C/kg.
A measurement of the displacement of electrons from atoms caused by X-rays or by gamma radiation. Acute exposure generally refers to a high level of exposure of short duration; chronic exposure is lower-level exposure of long duration.
(A) A general term indicating human contact with ionizing radiation, radionuclides, or other hazardous agents. (B) For the purpose of measuring levels of ionizing photon radiation, the absolute value of the total charge of ions of one sign produced per unit mass of air when all electrons and positrons liberated or created by photons in air are completely stopped in air. Exposure is the quantity measured, for example, by a film badge. The SI unit of exposure is the coulomb per kilogram (C kg-1). In conventional units used in this report, exposure is given in roentgens (R); 1 R = 2.58 ~ 10-4 C kg-1.
A measure of the ionization (charge) produced in a unit volume of air by x or gamma radiation. The Roentgen (R) is a unit of exposure. The SI system expresses exposure in coulombs/kilogram.
The amount of radiation or pollutant present in a given environment that represents a potential health threat to living organisms.
1. A qualitative term referring to the surroundings of a site, especially to how well its openness will allow in situ measurements made at that site to represent the general area. Exposure is of particular concern for wind, temperature, precipitation, and radiation measurements. See instrument exposure. 2. The amount of time an individual is affected by a particular phenomenon, such as exposure to sunlight as affects UV-induced sunburn, air pollutants, or nuclear radiation See instrument exposure.
The time which radiation is being exposed to something(Course Material/Radiography/Physics/radiationsafety.htm)
