When.com Web Search

  1. Ad

    related to: dental radiation comparison chart

Search results

  1. Results From The WOW.Com Content Network
  2. Dental radiography - Wikipedia

    en.wikipedia.org/wiki/Dental_radiography

    Dental radiographs, commonly known as X-rays, are radiographs used to diagnose hidden dental structures, malignant or benign masses, bone loss, and cavities.. A radiographic image is formed by a controlled burst of X-ray radiation which penetrates oral structures at different levels, depending on varying anatomical densities, before striking the film or sensor.

  3. Background radiation - Wikipedia

    en.wikipedia.org/wiki/Background_radiation

    Background radiation is defined by the International Atomic Energy Agency as "Dose or the dose rate (or an observed measure related to the dose or dose rate) attributable to all sources other than the one (s) specified. [ 1 ] A distinction is thus made between the dose which is already in a location, which is defined here as being "background ...

  4. Orders of magnitude (radiation) - Wikipedia

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

    Light radiation sickness begins at about 50–100 rad (0.5–1 gray (Gy), 0.5–1 Sv, 50–100 rem, 50,000–100,000 mrem). 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 ...

  5. Sievert - Wikipedia

    en.wikipedia.org/wiki/Sievert

    US Department of Energy 2010 dose chart in sieverts for a variety of situations and applications [32] Various doses of radiation in sieverts, ranging from trivial to lethal, expressed as comparative areas Comparison of radiation doses – includes the amount detected on the trip from Earth to Mars by the RAD on the MSL (2011–2013). [33] [34 ...

  6. Panoramic radiograph - Wikipedia

    en.wikipedia.org/wiki/Panoramic_radiograph

    A panoramic radiograph is a panoramic scanning dental X-ray of the upper and lower jaw.It shows a two-dimensional view of a half-circle from ear to ear. Panoramic radiography is a form of focal plane tomography; thus, images of multiple planes are taken to make up the composite panoramic image, where the maxilla and mandible are in the focal trough and the structures that are superficial and ...

  7. Roentgen equivalent man - Wikipedia

    en.wikipedia.org/wiki/Roentgen_equivalent_man

    0.01 Sv. The roentgen equivalent man (rem) [1][2] is a CGS unit of equivalent dose, effective dose, and committed dose, which are dose measures used to estimate potential health effects of low levels of ionizing radiation on the human body. Quantities measured in rem are designed to represent the stochastic biological risk of ionizing radiation ...

  8. Gray (unit) - Wikipedia

    en.wikipedia.org/wiki/Gray_(unit)

    The gray is also used in radiation metrology as a unit of the radiation quantity kerma; defined as the sum of the initial kinetic energies of all the charged particles liberated by uncharged ionizing radiation [a] in a sample of matter per unit mass. The unit was named after British physicist Louis Harold Gray, a pioneer in the measurement of X ...

  9. Background radiation equivalent time - Wikipedia

    en.wikipedia.org/wiki/Background_radiation...

    Background radiation equivalent time (BRET) or background equivalent radiation time (BERT) is a unit of measurement of ionizing radiation dosage amounting to one day worth of average human exposure to background radiation. BRET units are used as a measure of low level radiation exposure. The health hazards of low doses of ionizing radiation are ...