Nuclear Energy pp 361-367 | Cite as


  • John W. PostonSr.Email author
Reference work entry
Part of the Encyclopedia of Sustainability Science and Technology Series book series (ESSTS)


Absorbed dose

The amount of energy deposited by ionizing radiation per unit mass of the material. Usually expressed in the special radiologic unit rad or in the SI unit the gray (Gy). One Gy equals 1 J/kg or 100 rad.


Any device worn or carried by an individual to establish total exposure, absorbed dose, or equivalent (or the rates) in the area or to the individual worker while occupying the area.

Equivalent dose

(Formerly the dose equivalent) The product of the absorbed dose and the radiation-weighting factor (formerly the quality factor) for the type of radiation for which the absorbed dose is measured or calculated. The equivalent dose is used to express the effects of radiation-absorbed dose from many types of ionizing radiation on a common scale. The special radiologic unit is the rem or in the SI unit the sievert (Sv). One Sv is equal to 100 rem.


A quantity defined as the charge produced in air by photons interacting in a volume of air of known mass. An...


  1. 1.
    Poston JW Sr (1987) Dosimetry. In: Encyclopedia of physical science and technology, vol 6. Academic, New YorkGoogle Scholar
  2. 2.
    Knoll GF (2000) Radiation detection and measurements, 3rd edn. Wiley, New YorkGoogle Scholar
  3. 3.
    Eichholz GG, Poston JW (1979) Principles of nuclear radiation detection. Ann Arbor Science Publishers, Ann ArborGoogle Scholar
  4. 4.
    Tsoulfanidis N (1995) Measurement & detection of radiation, 2nd edn. Taylor & Francis, Washington, DCGoogle Scholar
  5. 5.
    Kase KR, Bjarngard BE, Attix FH (eds) (1985) The dosimetry of ionizing radiation, vol I–III. Academic, New YorkGoogle Scholar
  6. 6.
    Boetter-Jensen L, McKeever SWS, Wintle AG (2000) Optically stimulated luminescence dosimetry. Elsevier, Maryland HeightsGoogle Scholar
  7. 7.
    R. S. Landauer, Inc (2010) Accessed 9 May 2010

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Nuclear EngineeringTexas A&M UniversityCollege StationUSA

Personalised recommendations