Kerma

Acronym for "kinetic energy released in matter". The physical dose quantity kerma (K) represents the kinetic energy (E) per unit of mass (m) liberated during the first interaction of indirectly ionizing particles such as photons and neutrons. The corresponding unit is gray (Gy).

Related quantities

• absorbed dose
• ambient dose equivalent
• collective effective dose
• committed effective dose
• committed equivalent dose
• directional dose equivalent
• effective dose
• equivalent dose
• exposure
• irradiation geometry
• personal dose equivalent
• radiation weighting factor
• tissue weighting factor