alpha ray


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Related to alpha ray: beta ray

alpha ray

ionizing radiation consisting of a stream of alpha particles

alpha ray

[′al·fə ‚rā]
(nucleonics)
A stream of alpha particles.
References in periodicals archive ?
The team succeeded in photographing alpha rays, emitted when radioactive material disintegrates, appearing in the picture as dark lines radiating from near the nuclei of the cells in bones, kidneys and lungs of the victims.
The team concluded the alpha rays were almost identical in length to those emitted from the plutonium used in the bomb dropped on Nagasaki.
Judging from their skin, the two were exposed to radiation which includes not only gamma rays but also alpha rays, Kamada said.