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The template will not display the string "Table X. " in front of the table's title "SI radiometry units". 1 = <number> The template will display the table number as part of the table header in the following form: "Table <number>. SI radiometry units.", where <number> is a placeholder for the number (or other table designation) given as parameter.
Unit Symbol Derivation Year SI equivalent Activity (A) becquerel: Bq s −1: 1974 SI unit curie: Ci 3.7 × 10 10 s −1: 1953 3.7 × 10 10 Bq rutherford: Rd 10 6 s −1: 1946 1 000 000 Bq Exposure (X) coulomb per kilogram: C/kg C⋅kg −1 of air 1974 SI unit röntgen: R esu / 0.001 293 g of air 1928 2.58 × 10 −4 C/kg: Absorbed dose (D) gray ...
The following table shows radiation quantities in SI and non-SI units. W R (formerly 'Q' factor) is a factor that scales the biological effect for different types of radiation, relative to x-rays (e.g. 1 for beta radiation, 20 for alpha radiation, and a complicated function of energy for neutrons). In general, conversion between rates of ...
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The roentgen or röntgen (/ ˈ r ɛ n t ɡ ə n,-dʒ ə n, ˈ r ʌ n t-/; [2] symbol R) is a legacy unit of measurement for the exposure of X-rays and gamma rays, and is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air (statcoulomb per kilogram).
The commission has been responsible for defining and introducing many of the following units of measure. The number of different units for various quantities is indicative of changes of thinking in world metrology, especially the movement from cgs to SI units. [6] The following table shows radiation quantities in SI and non-SI units.
The ICRP introduced and then officially adopted the rem in 1962 as the unit of equivalent dose to measure the way different types of radiation distribute energy in tissue and began recommending values of relative biological effectiveness (RBE) for various types of radiation. [22] In practice, the unit of rem was used to denote that an RBE ...
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