bremsstrahlung

Electromagnetic radiation resulting from the acceleration or deceleration of subatomic particles such as electrons when they interact with matter; often applied to the continuous part of the x-ray spectrum produced when high-energy electrons bombard a material.

Bremsstrahlung is German for "braking radiation." In cosmic ray shower production, bremsstrahlung gives rise to emission of gamma rays as electrons encounter atmospheric nuclei.

Electromagnetic radiation resulting from the acceleration or deceleration of subatomic particles such as electrons when they interact with matter; often applied to the continuous part of the x-ray spectrum produced when high-energy electrons bombard a material.

Precipitation from a convective cloud.