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Alpha Radiation

Video footage: Cosmic Alfa Particles at Wilson Cloud Chamber in a Succession of Experiments With the Alpha Radiation in a Diffusion Tube Under -32 D.c
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Definition of the noun alpha radiation

What does alpha radiation mean as a name of something?


  1. the radiation of alpha particles during radioactive decay
    • lexical domain: Natural Phenomena - nouns denoting natural phenomena
    • synonym of alpha radiation: alpha ray
    • more generic terms: ionizing radiation = high-energy radiation capable of producing ionization in substances through which it passes; corpuscular radiation / particulate radiation = a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all

Printed dictionaries and other books with definitions for Alpha Radiation

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Google previewConcise Dictionary of Modern Medicine (2010)

by Joseph Segen

Alpha radiation 2 protons and 2 neutrons, eg plutonium, radon; alpha radiation travels 15 cm in air and is stopped by a piece of paper; proven role in soft tissue malignancy–see Radium Dial company, relationship with epithelial malignancy is ...

Google previewBlackie’s Dictionary of Physics

by Blackie

Alpha particle (alpha radiation, alpha ray): A positively charged particle (a Helium -4 nucleus) made up of two neutrons and two protons. It is the least penetrating of the three common forms of radiation, being stopped by a sheet of paper.

Google previewKnowledge Encyclopedia (2013)

by DK

PoSItively charged alpha particle Alpha radiation The slowest and heaviest forms of radioactivity are called alpha particles. Each alpha particle has two protons and two neutrons (the same as the nucleus of a helium atom). Negatively charged ...

Google previewDictionary of Ecodesign (2010)

An Illustrated Reference by Ken Yeang, Lillian Woo

The greatest exposure to alpha radiation for average citizens comes from the inhalation of radon, a radioactive gas formed in the decay of uranium. Radon is an air pollutant that can accumulate in buildings and is known to be carcinogenic.

Google previewA Dictionary of Environment and Conservation (2017)

by Michael Allaby, Chris Park

alpha radiation Emission of *alpha particles from a material that is ...

Google previewA Dictionary of Climate Change and the Environment (2012)

Economics, Science and Policy by R. Quentin Grafton, Harry W. Nelson, N. Ross Lambie, Paul R. Wyrwoll

alpha radiation. The least dangerous form of the three main types of nuclear radiation. It consists of a stream of alpha particles released from radioactive ...

Google previewEnvironmental Engineering Dictionary (2005)

by C. C. Lee

An alpha radiation can be stopped by a sheet of paper or outer dead layer of skin (EPA88/O8a). (3) See radiation for more related terms. Alpha ray: A radioactive stream of alpha particle. Alpha TNT: A symmetrical isomer form, 2, 4, 6-TNT, ...

Google previewDictionary of Physics (2014)

by Michael Chapple

alpha radiation The work involved three distinct stages. Stage 1. Having discovered that alpha particles passed freely through thin metal sheets, Geiger and Marsden checked the possibility of reflection; they found that a tiny fraction of the ...

Google previewNelson's Perpetual Loose-leaf Encyclopaedia (1920)

An International Work of Reference, Complete in Twelve Volumes, with 7000 Illustrations, Colored Plates, Colored Maps and Engravings

The Alpha radiation seems to be particulate in nature and radiation of this type seems to follow all the laws that would apply to small particles being sprayed off a given surface. These particles may be known to be bombarded by other moving ...

Google previewEncyclopedia of Astrobiology (2011)

by Muriel Gargaud

Alpha radiation – the emission of an alpha particle (which contains 2 protons and 2 neutrons) from an atomic nucleus. When this occurs, the atom's atomic mass will decrease by 4 units and atomic number will decrease by 2. 2. Beta radiation ...

Google previewDekker Encyclopedia of Nanoscience and Nanotechnology (2004)

by James A. Schwarz, Cristian I. Contescu, Karol Putyera

Alpha radiation is composed of heavy, energetic, highly charged particles that interact strongly with surrounding matter. Consequently, alpha radiation is quickly attenuated by surrounding material and has very short ranges. Therefore ...

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Small photo of Two men in protective gear cleaning up after chemical disaster. The inflatable gear also protects against contamination with radioactive particles, Alpha radiation and partially Beta radiation.Small photo of Two men in protective gear cleaning up after chemical or radiation accident. The gear protects against contamination with radioactive particles, Alpha radiation and partially Beta radiation. More...

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