beta ray

American  

noun

Physics.

1. a stream of beta particles.

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beta ray British  

noun

1. a stream of beta particles

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beta ray Scientific  

1. A stream of beta particles.

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Etymology

Origin of beta ray

First recorded in 1900–05

Example Sentences

Americium-241, an isotope that emits gamma and beta rays as it decays, is found in homes around the world in an unassuming device: a fire alarm.

From BBC

"It emits both beta rays and gamma rays so if you have it close to you, you could either end up with skin damage including skin burns," the state's Chief Health Officer Andy Robertson warned.

From BBC

Some of these sensors collect particles on a filter and then shine beta rays through them to measure mass.

From The Verge

Potential sources of exposure, the agency found, included inhaling or ingesting uranium dust or fumes as well as gamma or beta rays while handling or working near the depleted uranium.

From Washington Times

"Since they emit beta rays we weren't able to detect them until recently. Specific tools were necessary and we couldn't afford them," says Suzuki.

From BBC