alpha ray

American  

noun

Physics.

1. a stream of alpha particles.

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alpha ray British  

noun

1. ionizing radiation consisting of a stream of alpha particles

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alpha ray Scientific  

1. A stream of alpha particles.

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Etymology

Origin of alpha ray

First recorded in 1900–05

Example Sentences

See Examples For:

alpha ray

We must conclude that the effect of the ionisation due to the alpha ray has not been to alter fundamentally the conditions which give rise to the optical properties of the medium.

From The Birth-Time of the World and Other Scientific Essays by Joly, John

The fundamental criterion of radioactive change is the expulsion of the alpha ray.

From The Birth-Time of the World and Other Scientific Essays by Joly, John

Bragg and Kleeman and others have investigated the career of the alpha ray when its path or range lies in a gas at ordinary or obtainable conditions of pressure and temperature.

From The Birth-Time of the World and Other Scientific Essays by Joly, John

For it proves that in the mineral the alpha ray gives rise to the same increased ionisation towards the end of its range, as Bragg determined in the case of gases.

From The Birth-Time of the World and Other Scientific Essays by Joly, John

Ions, number of, produced by an alpha ray, 237.

From The Birth-Time of the World and Other Scientific Essays by Joly, John