Inverse Square Law (ISL)

Flashcards covering key concepts related to the Inverse Square Law and its application in radiation exposure.

Inverse Square Law

A principle stating that a quantity is inversely proportional to the square of the distance from the source.

Intensity of radiation

The amount of radiation energy passing through a unit area per unit time.

Photons

Individual packets of energy released during the emission of radiant energy.

Divergence

The spreading out of radiation or light as it travels away from the source.

Radiant energy

Energy emitted in the form of radiation, such as x-radiation from an x-ray tube.

Unit area

A defined small area used for measuring intensity, typically expressed in square centimeters (cm²).

Old Intensity (I1)

The initial radiation intensity before a change in distance.

New Intensity (I2)

The radiation intensity after the distance has been changed.

Old Distance (D1)

The original distance from the radiation source before moving it.

New Distance (D2)

The distance from the radiation source after it has been moved.

Inverse Square Formula

A mathematical formula used to calculate the change in intensity based on changes in distance from the source.

mR

Milliroentgen, a unit of measurement for radiation exposure.

Radiation exposure

The condition of being exposed to radiation emitted from a source, leading to possible health effects.