| alpha particle |
A particle consisting of two protons and two neutrons which has a double positive charge and a mass four times that of a proton. This is not the same as an alpha emitting particle - which is a lump of one of the elements (eg Plutonium and Uranium) which release alpha particles when atoms of that element undergo radioactive decay. A half micron particle of Uranium would be about 5000 times the diameter of an alpha particle. ...
출처: www.llrc.org/jargonbuster.htm
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| alpha particle |
A specific particle ejected from a radioactive atom. It has low penetrating power and short range. Alpha particles will generally fail to penetrate the skin. Alpha-emitting atoms can cause health effects if introduced into the lungs or wounds.
출처: www.orau.gov/reacts/definitions.htm
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| alpha particle |
Charged particles emitted from a radioactive atom. Each charged particle consists of two protons and two neutrons.
출처: www.nuenergy.org/alt/glossary.htm
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| alpha particle |
Positively charged particle which is the atomic nucleus of a helium atom that consists of two protons and two neutrons.
출처: www.singtech.com/definitions.html
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| alpha particle |
Two protons and two neutrons held together by nuclear interactions to make a stable nucleus.
출처: inkido.indiana.edu/a100/glossary2.html
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