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  2. Sievert - Wikipedia

    en.wikipedia.org/wiki/Sievert

    mSv/a) 90: μSv/h: Natural radiation on a monazite beach near Guarapari, Brazil. [67] (9: Sv/a) 1: mSv/h: NRC definition of a high radiation area in a nuclear power plant, warranting a chain-link fence [68] (17–173: Sv/a) 2–20: mSv/h: Typical dose rate for activated reactor wall in possible future fusion reactors after 100 years. [69]

  3. Orders of magnitude (radiation) - Wikipedia

    en.wikipedia.org/.../Orders_of_magnitude_(radiation)

    The following table includes some dosages for comparison purposes, using millisieverts (mSv) (one thousandth of a sievert). The concept of radiation hormesis is relevant to this table – radiation hormesis is a hypothesis stating that the effects of a given acute dose may differ from the effects of an equal fractionated dose. Thus 100 mSv is ...

  4. Radiation exposure - Wikipedia

    en.wikipedia.org/wiki/Radiation_exposure

    Radiation exposure is a measure of the ionization of air due to ionizing radiation ... The absorbed dose of small intestine is 100 mSv and the absorbed dose of ...

  5. Background radiation - Wikipedia

    en.wikipedia.org/wiki/Background_radiation

    The International Commission on Radiological Protection recommends limiting occupational radiation exposure to 50 mSv (5 rem) per year, and 100 mSv (10 rem) in 5 years. [37] However, background radiation for occupational doses includes radiation that is not measured by radiation dose instruments in potential occupational exposure conditions ...

  6. Cumulative dose - Wikipedia

    en.wikipedia.org/wiki/Cumulative_dose

    In medicine, the total amount of a drug or radiation given to a patient over time; for example, the total dose of radiation given in a series of radiation treatments or imaging exams. Recent studies have drawn attention to high cumulative doses (>100 mSv) to millions of patients undergoing recurrent CT scans during a 1- to 5-year period.

  7. Roentgen equivalent man - Wikipedia

    en.wikipedia.org/wiki/Roentgen_equivalent_man

    The ICRP recommends limiting artificial irradiation of the public to an average of 100 mrem (1 mSv) of effective dose per year, not including medical and occupational exposures. [10] For comparison, radiation levels inside the United States Capitol are 85 mrem/yr (0.85 mSv/yr), close to the regulatory limit, because of the uranium content of ...

  8. Flight-time equivalent dose - Wikipedia

    en.wikipedia.org/wiki/Flight-time_equivalent_dose

    The flight-time equivalent dose concept is the creation of Ulf Stahmer, a Canadian professional engineer working in the field of radioactive materials transport. It was first presented in the poster session [1] at the 18th International Symposium of the Packaging and Transport of Radioactive Materials (PATRAM) held in Kobe, Hyogo, Japan where the poster received an Aoki Award for distinguished ...

  9. Radiation hormesis - Wikipedia

    en.wikipedia.org/wiki/Radiation_hormesis

    But for low doses (1–100 mSv) the predicted elevated risks are only 1.001 to 1.04 and excess cancer cases, if present, cannot be detected due to confounding factors, errors and biases. [21] [22] [23] In particular, variations in smoking prevalence or even accuracy in reporting smoking cause wide variation in excess cancer and measurement ...