alpha-radiation
101nuclear radiation — Particulate and electromagnetic radiation emitted from atomic nuclei in various nuclear processes. The important nuclear radiations, from the weapon standpoint, are alpha and beta particles, gamma rays, and neutrons. All nuclear radiations are… …
102corpuscular radiation — Physics, Astron. radiation consisting of atomic and subatomic particles, as alpha particles, beta particles, and neutrons. * * * …
103ionizing radiation — Physics. any radiation, as a stream of alpha particles or x rays, that produces ionization as it passes through a medium. [1900 05] * * * …
104nuclear radiation — Physics. radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission. * * * …
105ionizing radiation — i′onizing radia′tion n. phs any radiation, as a stream of alpha particles or x rays, that produces ionization as it passes through a medium …
106Raie Lyman alpha — Série de Lyman La série de Lyman correspond à toutes les transitions électroniques des états excités (n ≥ 2) de l atome d hydrogène vers son état fondamental (n = 1) et se traduit par l émission d une série de longueurs d ondes en physique. Le… …
107particle radiation — High energy nuclear emissions, used as physical agents of mutagenesis. Three major types typically used: alpha (α) (positively charged), beta (β) (negatively charged), or neutrons (uncharged) …
108radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …
109Relative biological effectiveness — (RBE) is a health physics concept introduced in the 1950s, after it was noted that different types of radiation might affect living organisms differently. A higher RBE equates with greater biological damage for equivalent radiation exposure.The… …
110Radon — This article is about the chemical element. For other uses, see Radon (disambiguation). astatine ← radon → francium Xe ↑ Rn ↓ Uuo …
