TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

URANIO-235 [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 - external organization data 2012-04-25

English

Subject field(s)
  • Chemical Elements and Compounds
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
Universal entry(ies)
235U
symbol, see observation
DEF

A light isotope of uranium of mass number 235 that is physically separable from natural uranium or is formed from plutonium by emission of a helium nucleus, that as the parent of the actinium series undergoes very slow radioactive disintegration, and that when bombarded with slow neutrons undergoes rapid fission into smaller atoms (as strontium and xenon or barium and krypton) together with much radiation and atomic energy, and that is used in power plants and atom bombs.

OBS

The number 235, in the symbol (235U) for the isotope 235 of uranium, is a superscript.

OBS

uranium-235;235U: Term and symbol recommended by the International Union of Pure and Applied Chemistry (IUPAC).

French

Domaine(s)
  • Éléments et composés chimiques
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s)
235U
symbol, see observation
DEF

Isotope de l'uranium, dont la proportion dans l'uranium naturel est de 0,71 %.

OBS

C'est une matière fissile qui constitue le combustible nucléaire le plus courant. L'augmentation de la proportion en uranium 235 (enrichissement) se fait par diverses méthodes dites de séparation des isotopes. Émetteur alpha de 4,35 MeV (84 %) et diverses énergies voisines (16 %) de période 7,13 X 108 ans, il est le père de la famille de l'actinium. Ancienne appellation : Actino-uranium.

OBS

actino-uranium : nom donné parfois à l'uranium 235, dont l'actinium dérive par filiation radioactive.

OBS

235U : le chiffre 235 est en exposant.

OBS

uranium-235;235U : terme et symbole recommandés par l'Union internationale de chimie pure et appliquée (UICPA).

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Física atómica
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
Entrada(s) universal(es)
235U
symbol, see observation
OBS

Fórmula química:235U

OBS

actinouranio : Nombre dado al isótopo del uranio de número atómico 92 y número de masa 235, que es el primer radioelemento de la serie del actinio.

Save record 1

Record 2 - external organization data 2007-10-17

English

Subject field(s)
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
  • CBRNE Weapons
DEF

Material containing one or more fissile (or, rarely fissionable, for example, 238 Pu) nuclides, and capable of being made critical under appropriate conditions. [Definition standardized by ISO.]

DEF

Any material fissionable by thermal (slow) neutrons.

OBS

... plutonium 238, plutonium 239, plutonium 241, uranium 233, uranium 235, or any material containing any of the foregoing, but does not include unirradiated natural uranium or depleted uranium.

OBS

fissile: sometimes used specifically of materials capable of fission upon absorption of a slow (as opposed to a fast) neutron.

OBS

Not to be confused with "active material", which means "A material capable of releasing substantial quantities of nuclear energy during fission".

OBS

fissile material: term standardized by ISO.

French

Domaine(s)
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
  • Armes CBRNE
DEF

Matière contenant un ou plusieurs nucléides fissiles (ou rarement fissionnables, par exemple 238 Pu) et pouvant devenir critique dans certaines conditions. [Définition normalisée par l'ISO.]

CONT

fissile : Susceptible de subir la fission nucléaire. [...] Aux termes des règlements sur les transports de matières radioactives, on entend par matières fissiles : l'uranium 233, l'uranium 235, le plutonium 238, le plutonium 239 et le plutonium 241.

OBS

matière fissile : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Física atómica
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
  • Armas QBRNE
DEF

Material susceptible de ser fisionado fácilmente cuando es bombardeado por neutrones.

CONT

El uranio-235 y el plutonio-239 son los materiales físiles normalmente utilizados en la producción de explosivos nucleares. Otros materiales físiles potencialmente utilizables incluyen el uranio-233, el americio, el neptunio y otros isótopos del plutonio.

OBS

No confundir con "material fisionable".

OBS

material fisionable: Material susceptible de ser fisionado cuando es bombardeado por neutrones o fotones de la energía apropiada. El uranio-238, por ejemplo, es fisionable pero no físil.

Save record 2

Record 3 1996-06-06

English

Subject field(s)
  • Nuclear Science and Technology
CONT

In Canada radioisotopes are produced in two ways: - by irradiation of stable isotopes in a nuclear reactor or in a particle accelerator, e.g., cobalt-60; - by the irradiation of special targets in a nuclear reactor from which the desired isotope is subsequently extracted, e.g., molybdenum-99 from uranium-235 targets.

Key term(s)
  • uranium 235 target

French

Domaine(s)
  • Sciences et techniques nucléaires
OBS

Voir «cible nucléaire» dans Termium.

Key term(s)
  • cible d'uranium-235

Spanish

Campo(s) temático(s)
  • Ciencia y tecnología nucleares
Key term(s)
  • blanco de uranio-235
  • meta uranio-235
  • objetivo uranio-235
Save record 3

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