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词汇 gamma-ray
释义 gamma ray
noun[ Cusually plural ]
 physicsuk /ˈɡæm.ə ˌreɪ/ us /ˈɡæm.ə ˌreɪ/
a beam of gamma radiationγ射线
SMART Vocabulary: related words and phrases

Physics: radiation & radioactivity
alpha particle
background radiation
decay
electromagnetic radiation
gamma radiation
half-life
luminosity
non-ionizing
non-irradiated
nonradioactive
post-irradiation
radioisotope
sievert
spectrometer
spectrometric
spectrometry
UPF
UVA
UVB
weak force
Examples from literature

Polonium contains especially alpha rays and a few gamma rays. In the case of uranium, the alpha rays have extremely slight penetrating power, and cannot even impress photographic plates. 
That was the dangerous kind, because both beta particles and gamma rays could penetrate clothing and skin. 

Examples of gamma ray


gamma ray
Natural phenomena such as mass extinctions, supernovae and gammaray bursters are more problematic for civilization.
Recent investigations of cosmological gammaray bursts suggest that these too could cause ozone depletion.
The exact form of the source modulation and the nuclear-resonant thickness of the resonant absorber determines the shape of the time-differential resonant gammaray transmission spectrum.
To my knowledge, gammaray irradiation has been known to scientists for over 30 years.
From the
Hansard archive

Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0
We know all that there is to be known about gammaray irradiation at the present time.
From the
Hansard archive

Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0
The chamber would manipulate the gammaray into a way that it could be recorded.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
At present, ytterbium is mainly used as a dopant of stainless steel or active laser media, and less often as a gammaray source.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
This low gammaray production rate makes it more difficult to find and identify this isotope.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
The atom is not ionised, and the gammaray continues on, although at a lower energy.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
During this interaction, energy is transferred from the gammaray to the electron, which is a directly ionizing particle.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
A secondary gammaray with less energy (hence lower frequency) also emerges from the interaction.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
The neutron can be detected by its capture on an appropriate nucleus, releasing a gammaray.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
Iridium-192 is also a strong gammaray emitter.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
Iridium-192 is commonly used as a gammaray source in industrial radiography to locate flaws in metal components.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
The constituent elements of the sample absorb some of these neutrons and emit prompt gamma rays which are measured with a gammaray spectrometer.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
See all examples of gamma ray
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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