(Askeri) RADYOAKTİVİTE: Süratle değişen bir izotopun çekirdeklerinden radyasyonun genel olarak alfa veya beta partiküllerinin çok defa gama ışınlarıyla birlikte kendiliğinden yayılması olayı
(Askeri) ASGARİ KALICI ETKİSİ OLAN SİLAH: Serpinti, radyoaktif yağmur ve patlamanın olduğu bölgedeki radyoaktivite gibi istenmeyen etkileri optimum şekilde azaltmak üzere tasarlanmış bir nükleer silah. Ayrıca bakınız: "salted weapon"
(Askeri) ARTIK RADYOAKTİVİTE, KALINTI RADYASYON: Radyoaktif kaynaklardan ortaya çıkan ve bir dakikadan fazla daim olan nükleer radyasyon. Nükleer patlamayla oluşan artık radyasyon kaynakları fizyon parçalarını ve temelinde nötron faaliyeti ve ayrıca gama veya diğer radyasyon faaliyeti tarafından oluşturulan radyoaktif maddeleri içermektedir. Diğer olası artık radyasyon kaynakları, nükleer patlamadan başka vasıtaların oluşturduğu ve neşrettiği radyoaktif maddeleri içermektedir. Ayrıca bakınız: "contamination", "induced radiation", "initial radiation"
الإنجليزية - الإنجليزية
تعريف radioactivity في الإنجليزية الإنجليزية القاموس.
The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc
Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
the property of some elements to emit spontaneously rays of radiant energy by the decay of their atomic nuclei
Radioactivity is a natural process by which the excess energy of unstable atoms is released spontaneously in the form of particles or waves The end product of this activity is radiation
The spontaneous emission of radiation from the nucleus of an unstable atom As a result of this emission, the radioactive atom is converted, or decays, into an atom of a different element that might or might not be radioactive
The emission of alpha particles, beta particles, neutrons and gamma or x-radiation from the disintegration of an atomic nucleus
Alpha and beta particles as well as gamma rays emitted from an unstable isotopes atomic nuclei Exposure to high levels of radioactivity can lead to radiation sickness
{i} emission of energy due to atomic decay, production of radiation as a result of atomic breakdown
The property or characteristic of material to spontaneously "disintegrate" with the emission of energy in the form of radiation Approximately 5,000 natural and artificial radioactive isotopes have been identified
The spontaneous emission of radiation, generally alpha or beta particles, often accompanied by gamma rays, from the nuclei of an (unstable) isotope As a result of this emission the radioactive isotope is converted (or decays) into the isotope of a different (daughter) element which may (or may not) also be radioactive Ultimately, as a result of one or more stages of radioactive decay, a stable (nonradioactive) end product is formed See Isotopes
The spontaneous disintegration or change in energy state of an unstable nucleus of an atom accompanied by the emission of alpha, beta, or gamma rays
A change in the structure of an atom's nucleus where parts of its mass and/or energy are released spontaneously into the outside environment at a fixed rate The three main types of radioactivity are gamma rays, fast-moving alpha particles, and beta particles
The spontaneous disintegration of an unstable atomic nucleas, resulting in the emission of subatomic particles
The decay of unstable nuclei through the emission of ionizing radiation The resulting nucleus may itself be unstable and undergo radioactive decay The process stops only when the decay product is stable
The property possessed by some elements (as uranium) of spontaneously emitting alpha or beta rays and sometimes also gamma rays by the disintegration of the nuclei of ATOMs
The property of spontaneously emitting alpha, beta, and/or gamma radiation as a result of nuclear disintegration More Information: Radiation, Radioactive Decay
Instability of the nuclei of atoms, causing them to change spontaneously to a lower energy level or to modify the number of protons and neutrons they contain The 3 "classical" types of radioactive emissions are (1) alpha particles, nuclei of helium (2) beta-rays, fast electrons and (3) gamma-rays, high-energy photons
The spontaneous decay or disintegration of unstable atomic nuclei, accompanied by the emission of radiation
the sending out of radiation (=a form of energy) when the nucleus (=central part) of an atom has broken apart. Property exhibited by certain types of matter of emitting radiation spontaneously. The phenomenon was first reported in 1896 by Henri Becquerel for a uranium salt, and it was soon found that all uranium compounds are radioactive due to the uranium's radioactivity. In 1898 Marie Curie and her husband discovered two other naturally occurring, strongly radioactive elements, radium and polonium. The radiation is emitted by unstable atomic nuclei (see nucleus) as they attempt to become more stable. The main processes of radioactivity are alpha decay, beta decay, and gamma decay. In 1934 it was discovered that radioactivity could be induced in ordinary matter by artificial transmutation
Radioactivity is the spontaneous emission of radiation and atomic particles from unstable elements Radioactivity is measured in terms of half-lives and is not affected by physical state or chemical combination
Spontaneous emission of radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus
The spontaneous decay or disintegration of an unstable atomic nucleus accompanied by the emission of radiation
Radioactivity is the emission of subatomic particles and radiation from elemental isotopes having unstable atomic nuclei The isotopes used in radioimmunoassays emit either beta particles or gamma radiation This radioactive decay is a random event and follows a poisson distribution
The spontaneous decay of an unstable atomic nucleus, giving rise to the emission of radiation
The spontaneous transformation of an unstable atom and often results in the emission of radiation This process is referred to as a transformation, a decay, or a disintegration of an atom
the spontaneous emission of matter or energy from the nucleus of an unstable atom (the emitted matter or energy is usually in the form of alpha or beta particles, gamma rays, or neutrons)
The spontaneous breakdown of an atomic nucleus with the emission of particles and rays