 | National Committee on Radiation Protection and Measurements (U.S.) - X-rays - 1961 - 68 pages
...unit of RBE dose. Roentgen(r).—The unit of exposure dose of X- or gamma radiation. One roentgen is an exposure dose of X- or gamma radiation such that...0.001293 g of air produces, in air, ions carrying 1 electrostatic unit of quantity of electricity of either sign. Scattered radiation.—See Radiation.... | |
 | Industrial safety - 1960 - 86 pages
...generally is not known.) Roentgen (r). Unit of exposure dose of X- or gamma radiation. One roentgen is an exposure dose of X- or gamma radiation such that...produces, in air, ions carrying 1 esu of quantity of electircity of either sign. Sealed source. Radioactive material that is encased in, and is to be used... | |
 | Industrial safety - 1961 - 178 pages
...per sec. The unit of exposure of X or gamma radiation is the roentgen. One roentgen is an exposure of X or gamma radiation such that the associated corpuscular...0.001293 g of air produces, in air, ions carrying 1 electrostatic unit of quantity of electricity of either sign. The specific gamma-ray emission of a... | |
 | Industrial safety - 1957 - 24 pages
...Radiological Units and Measurements has defined [8] the unit of X-ray dose as follows: "One roentgen is an exposure dose of X- or gamma radiation such that the associated corpuscular emission per 0.001293 gram of air produces, in air, ions carrying 1 electrostatic unit of quantity of electricity of either... | |
 | Industrial safety - 1958 - 44 pages
...unit of absorbed dose, equal to 93 ergs per gram. Replaced by the rad. 2.27. Roentgen. The quantity of X- or gamma radiation such that the associated corpuscular emission per 0.001293 gram of air produces, in air, ions carrying one electrostatic unit of quantity of electricity of either... | |
 | United States. National Bureau of Standards - Chemistry - 1938 - 1014 pages
...the Fifth International Congress of Radiology [2] as follows : "The roentgen shall be the quantity of X or gamma radiation such that the associated corpuscular emission per 0.001293 gram of air produces, in air, ions carrying 1 esu of quantity of electricity of either sign." It is... | |
 | United States. Navy Department. Bureau of Ordnance - Radiography - 1946 - 214 pages
...roentgen and is designated by the symbol r. The definition is: "the roentgen shall be the quantity of x or gamma radiation such that the associated corpuscular emission per 0.001293 gram of air produces in air ions carrying 1 esu of quantity of electricity of either sign." The specified... | |
 | Leon Francis Curtiss - Nuclear physics - 1949 - 96 pages
...be derived from the roentgen. The roentgen (r) is defined as "that quantity of X- or gamma-radiation such that the associated corpuscular emission per...g of air, produces in air, ions carrying 1 esu of electricity of either sign." Since 1 esu represents 2.08 x 10° ion pairs, the r corresponds to 1.61... | |
 | Administrative law - 1994 - 1112 pages
...unit equal to one-thou sandth (1/1000) of a roentgen which roentgen is defined as an exposure dote of X or gamma radiation such that the associated corpuscular emission per 0.001293 gram of air produces, in air ions carrying one electrostatic unit of quantity of electricity of either... | |
 | Los Alamos Scientific Laboratory - Technology & Engineering - 1950 - 482 pages
...most biological purposes. The unit of dose is called the roentgen (r) and is defined as the "quantity of X or gamma radiation such that the associated corpuscular emission per 0.001293 gram of air produces, in air, ions carrying 1 electrostatic unit (esu) of quantity of electricity of... | |
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The unit of exposure dose of X- or gamma radiation is the roentgen (r). One roentgen is an exposure dose of X- or gamma radiation such that the associated corpuscular emission per 0.001293 g of air produces, in air, ions carrying 1 electrostatic unit... 
