A measure of ionization produced in air due to gamma or x-ray is?

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Multiple Choice

A measure of ionization produced in air due to gamma or x-ray is?

Explanation:
Exposure is the measure of ionization produced in air by gamma or X-ray radiation. It is defined by the amount of charge created per unit mass of air, and historically this quantity is expressed in roentgens. One roentgen corresponds to about 2.58 × 10^−4 coulombs per kilogram of air under standard conditions. This concept specifically describes ionization in air, whereas absorbed dose (gray/rad) and dose equivalent (sievert/rem) relate to energy deposition in matter and the biological effect, respectively. In modern terms, exposure is often given in C/kg, but the term roentgen remains the traditional name for this ionization measure in air.

Exposure is the measure of ionization produced in air by gamma or X-ray radiation. It is defined by the amount of charge created per unit mass of air, and historically this quantity is expressed in roentgens. One roentgen corresponds to about 2.58 × 10^−4 coulombs per kilogram of air under standard conditions. This concept specifically describes ionization in air, whereas absorbed dose (gray/rad) and dose equivalent (sievert/rem) relate to energy deposition in matter and the biological effect, respectively. In modern terms, exposure is often given in C/kg, but the term roentgen remains the traditional name for this ionization measure in air.

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