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  2. Sievert - Wikipedia

    en.wikipedia.org/wiki/Sievert

    "The sievert is the special name for the SI unit of equivalent dose, effective dose, and operational dose quantities. The unit is joule per kilogram." The sievert is used for a number of dose quantities which are described in this article and are part of the international radiological protection system devised and defined by the ICRP and ICRU.

  3. Effective dose (radiation) - Wikipedia

    en.wikipedia.org/wiki/Effective_dose_(radiation)

    The SI unit for effective dose is the sievert (Sv) which represents a 5.5% chance of developing cancer. [4] The effective dose is not intended as a measure of deterministic health effects, which is the severity of acute tissue damage that is certain to happen, that is measured by the quantity absorbed dose. [5]

  4. Roentgen equivalent man - Wikipedia

    en.wikipedia.org/wiki/Roentgen_equivalent_man

    The deterministic effects that can lead to acute radiation syndrome only occur in the case of high doses (> ~10 rad or > 0.1 Gy) and high dose rates (> ~10 rad/h or > 0.1 Gy/h). A model of deterministic risk would require different weighting factors (not yet established) than are used in the calculation of equivalent and effective dose.

  5. Committed dose - Wikipedia

    en.wikipedia.org/wiki/Committed_dose

    The SI unit of measure is the sievert. A committed dose from an internal source represents the same effective risk as the same amount of effective dose applied uniformly to the whole body from an external source, or the same amount of equivalent dose applied to part of the body.

  6. Orders of magnitude (radiation) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    Recognized effects of higher acute radiation doses are described in more detail in the article on radiation poisoning.Although the International System of Units (SI) defines the sievert (Sv) as the unit of radiation dose equivalent, chronic radiation levels and standards are still often given in units of millirems (mrem), where 1 mrem equals 1/1,000 of a rem and 1 rem equals 0.01 Sv.

  7. Radiation exposure - Wikipedia

    en.wikipedia.org/wiki/Radiation_exposure

    The effective dose refers to the radiation risk averaged over the entire body. [4] It is the sum of the equivalent dosage of all exposed organs or tissues. [4] Equivalent dose and effective dose are measured in sieverts (Sv). [4] Dose quantities used in radiation protection

  8. International Commission on Radiation Units and Measurements

    en.wikipedia.org/wiki/International_Commission...

    Effective dose (E) sievert: Sv J⋅kg −1 × W R × W T: 1977 SI unit röntgen equivalent man: rem 100 erg⋅g −1 × W R × W T: 1971 0.010 Sv Although the United ...

  9. Equivalent dose - Wikipedia

    en.wikipedia.org/wiki/Equivalent_dose

    The NRC's definition of dose equivalent is "the product of the absorbed dose in tissue, quality factor, and all other necessary modifying factors at the location of interest." However, it is apparent from their definition of effective dose equivalent that "all other necessary modifying factors" excludes the tissue weighting factor. [17]