| alpha radiation |
Radiation consisting of helium nuclei (atomic wt. 4, atomic number 2) that are discharged by radioactive disintegration of some heavy elements, including uranium-238, radium-226, and plutonium-239.
출처: www.ieer.org/clssroom/glossary.html
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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 radiation |
A positively charged particle made up of two neutrons and two protons. It is the least penetrating of the three common forms of radiation, and can be stopped by a sheet of paper.
출처: www.nuce.boun.edu.tr/glossary.html
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| alpha a. |
somatotroph.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| alpha b. |
a procedure in which a person is presented with continuous information, usually auditory, on the state of his brain-wave pattern, with the intent of increasing the percentage of alpha activity; this is done with the expectation that it will be associated with a state of relaxation and peaceful wakefulness. Called also alpha feedback.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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