gamma radiation

British  

noun

1. electromagnetic radiation emitted by atomic nuclei; the wavelength is generally in the range 1 × 10 ^–10 to 2 × 10 ^–13 metres

2. electromagnetic radiation of very short wavelength emitted by any source, esp the portion of the electromagnetic spectrum with a wavelength less than about 1 × 10 ^–11 metres

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gamma radiation Cultural  

1. The most energetic radiation in the electromagnetic spectrum; it has the lowest wavelength and the highest frequency in the spectrum. Gamma rays are sent out by some radioactive nuclei. Unlike alpha radiation and beta radiation, gamma rays are not made up of particles, and they have no charge.

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Example Sentences

If the excess gamma radiation turns out not to come from aging stars, it could represent the first concrete evidence that dark matter is real.

From Science Daily

After surveying the city-owned portion of the peninsula, Cabrera Services found 10 areas with elevated levels of gamma radiation — powerful electromagnetic energy that can penetrate human tissue and damage cells.

From Los Angeles Times

The Berkeley-hired firm proposed flagging areas for further evaluation if gamma radiation detectors reach 80,000 counts per minute or higher.

From Los Angeles Times

In the main lab, one volunteer is chopping cabbage before taking it to be measured for gamma radiation, and another is treating water before the sample is tested.

From BBC

Radiation portal monitors detect gamma radiation and are typically used at airports to scan individuals to ensure they do not have radioactive substances on them.

From BBC