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Radiation Safety Glossary
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Feb 14 2008, 2:43 AM EST
AndyC
Moved from: Safety
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Feb 14 2008, 2:43 AM EST
Aug 17 2007, 2:44 AM EDT
gmack
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(Word count: 1470)
Aug 17 2007, 2:33 AM EDT
gmack
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Neutrons that have been slowed to the degree that they have the same average thermal energy as the atoms or molecules through which they are passing. The average energy of neutrons at ordinary temperatures is about 0.025 eV, corresponding to an average velocity of 2.2 з 103 m s-1.
Ultraviolet
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(Word count: 1470)
Aug 17 2007, 2:29 AM EDT
gmack
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153 words added
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The process of emitting energy as waves or particles. The energy thus radiated. Frequently used for ionizing radiation except when it is necessary to avoid confusion with non-ionizing radiation.
Radioactive
Possessing the property of radioactivity
Radioactive waste
Useless material containing radionuclides. Frequently categorised in
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(Word count: 1291)
Aug 17 2007, 2:07 AM EDT
Anonymous
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158 words added
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A chemical change in the DNA in the nucleus of a cell. Mutations in sperm or egg cells or their precursors may lead to inherited effects in children. Mutations in body cells may lead to effects in the individual.
Neutron
An elementary particle with unit
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(Word count: 1157)
Aug 13 2007, 8:00 AM EDT
gmack
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Radiation that produces ionisation in matter. Examples are alpha particles, gamma rays, x-rays and neutrons. When these radiations pass through the tissues of the body, they have sufficient energy to damage DNA.
Isotope
Nuclides with the same number of protons but different numbers of neutrons. Not a synonym for nuclide.
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(Word count: 999)
Aug 13 2007, 7:53 AM EDT
Anonymous
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Electromagnetic radiation capable of producing the sensation of heat and found between light and radiofrequency radiations in the electromagnetic spectrum. Has subregions IRA, IRB and IRC
Ion
Electrically charged atom or grouping of atoms
Ionization
The process by which a neutral atom or
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(Word count: 907)
Aug 12 2007, 7:11 PM EDT
Anonymous
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Nuclear fission. A process in which a nucleus splits into two or more nuclei and energy is released. Frequently refers to the splitting of a nucleus of uranium-235 into two approximately equal parts by a thermal neutron with emission of other neutrons.
Free radical
Agrouping of atoms
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(Word count: 785)
Aug 9 2007, 4:58 AM EDT
gmack
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The quantity obtained by multiplying the equivalent dose to various tissues and organs by a weighting factor appropriate to each and summing the products. Unit sievert, symbol Sv. Frequently abbreviated to dose.
Electric field strength
A measure of the intensity of an electric
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(Word count: 491)
Aug 8 2007, 10:22 PM EDT
gmack
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An electron, sometimes emitted from an atom instead of an x-ray that would otherwise carry away the excess energy. Auger electrons are usually of no
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(Word count: 345)
Aug 8 2007, 10:08 PM EDT
gmack
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gmack
Aug 8 2007, 10:08 PM EDT for: no reason given
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