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Neutron fluence
| Глоссарий по неразрушающему контролю в авиации |
Integrated exposure (product of current and time) of neutrons per unit area.
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Fluence, английский
- Fluence measures the laser energy absorbed per unit of area treated. fluence is affected by beam energy / power density, laser pulse duration, wavelength and absorption of the tissue. fluence is measured by joules / cm2 and this equals laser pulse energy (j) divided by focal spot area (cm2).
- Optical energy per unit area
Fluence rate, английский
Fluence can be defined as the total number of particles (typically gamma ray photons ) crossing over a sphere of unit cross section which surrounds a point source of ionising radiation . the fluence rate is the number of particles crossing per unit time (
Neutron, английский
- (adj) describes something extremely impressive. origin - since the neutron bomb is the most destructive bomb, describing something as neutron means that it is more impressive than something that is just the bomb. example i went to see the ween concert last night. it was neutron!
- The neutron is a constituent of the nucleus of an atom and has an atomic mass unit of 1 (identical mass to a proton ). unlike protons, the neutron does not carry an electrical charge. its electrical neutrality allows it to take part in many types of nucle
- An uncharged elementary particle with a mass nearly equal to that of the proton. the isolated neutron is unstable and decays with a half-life of about 13 minutes into an electron, proton, and neutrino. neutrons sustain the fission chain reaction in a nuclear reactor. a neutron radiograph is a technique in which neutrons are used as penetrating radiation to produce a radiograph.
- Uncharged elementary particle with mass nearly equal to that of the proton.
Neutron a, английский
Neutron activation analysis, английский
Neutron balance sheet, английский
Баланс нейтронов (в энергетическом реакторе)
Neutron capture, английский
Neutron compton wave length, английский
Neutron density, английский
Neutron economy, английский
Баланс нейтронов (напр., в активной зоне реактора)
Neutron embrittlement, английский
Neutron flux, английский
Neutron current; quantity of neutrons passing through a unit area per unit time.
Neutron flux monitoring sensor, английский
Nfms
Neutron log, английский
Neutron logging, английский
Neutron magnetic moment, английский
Neutron mass, английский
Mn
Neutron molar mass, английский
Neutron physical characteristics, английский
Npc
Neutron radiography (rt), английский
The process whereby a photographic image of an object is produced by neutron radiation that has penetrated through the object.
Integrated, английский
- Communication, navigation, identification (system) комплексная [объединенная] система связи, навигации и опознавания
- Strapdown/air data sensor (system) кохмплексная система бесплатформенных инер- циальных датчиков и датчиков воздушных сигналов
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Neutron flux, английский
Neutron current; quantity of neutrons passing through a unit area per unit time.
Neural acuity, английский
- Ability of the eye and brain together to discriminate patterns from background. discrimination is influenced by knowledge of the target pattern, by the scanning technique, and by an indication’s relationship of figure to ground.
- Ability of the eye and brain together to discriminate patterns from background. discrimination is influenced by knowledge of the target pattern, by the scanning technique and by the figure-to-ground relationship of a discontinuity. the figure/ground relationship can be referred to as having a level of visual background noise.
- Ability of the eye and brain together to discriminate patterns from background. discrimination is influenced by knowledge of the target pattern, by the scanning technique and by the figure-to-ground relationship of a discontinuity. the figure/ground relationship can be described as having a level of visual background noise. compare vision acuity. see also visual perception.
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