TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
FISSION SPONTANEE [7 records]
Record 1 - internal organization data 2014-10-30
Record 1, English
Record 1, Subject field(s)
- Nuclear Physics
- Atomic Physics
- Electromagnetic Radiation
Record 1, Main entry term, English
- radioactivity
1, record 1, English, radioactivity
correct, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A property of certain nuclides of spontaneously emitting particles or gamma-radiation or ... X-radiation following orbital electron capture or [after] undergoing spontaneous fission. 2, record 1, English, - radioactivity
Record number: 1, Textual support number: 1 OBS
radioactivity: term standardized by ISO in 1997. 3, record 1, English, - radioactivity
Record 1, French
Record 1, Domaine(s)
- Physique nucléaire
- Physique atomique
- Rayonnements électromagnétiques
Record 1, Main entry term, French
- radioactivité
1, record 1, French, radioactivit%C3%A9
correct, feminine noun, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Propriété de certains nucléides d’émettre spontanément des particules ou un rayonnement gamma ou [...] un rayonnement X après capture électronique ou à la suite d’une fission spontanée. 2, record 1, French, - radioactivit%C3%A9
Record number: 1, Textual support number: 1 OBS
radioactivité : terme normalisé par l’ISO en 1997. 3, record 1, French, - radioactivit%C3%A9
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física nuclear
- Física atómica
- Radiación electromagnética
Record 1, Main entry term, Spanish
- radiactividad
1, record 1, Spanish, radiactividad
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- radioactividad 2, record 1, Spanish, radioactividad
feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Propiedad que presentan algunos nucleidos de desintegrarse espontáneamente. 3, record 1, Spanish, - radiactividad
Record 2 - external organization data 2013-08-09
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Chemistry
- Biochemistry
- Compartment - Canadian Nuclear Safety Commission
Record 2, Main entry term, English
- radioactive decay
1, record 2, English, radioactive%20decay
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
- radio-active decay 2, record 2, English, radio%2Dactive%20decay
correct
- decay 3, record 2, English, decay
correct, noun
- radioactive disintegration 4, record 2, English, radioactive%20disintegration
correct
- disintegration 3, record 2, English, disintegration
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A spontaneous nuclear transformation in which particles or gamma radiation are emitted or X radiation is emitted following orbital electron capture, or the nucleus undergoes spontaneous fission. 5, record 2, English, - radioactive%20decay
Record number: 2, Textual support number: 1 CONT
The decay of No nuclides to give N nuclides after time t is given by N = Noexp(-[gamma]t), where [gamma] is called the decay constant or the disintegration constant. The reciprocal of the decay constant is the mean life. 6, record 2, English, - radioactive%20decay
Record number: 2, Textual support number: 1 OBS
Decay is associated with the loss of the radioactive isotope and the formation of another isotope of the same element but of lower mass, or the formation of one or more different elements. The rate of decay is proportional to the amount of the radioactive isotope present in the sample and is characterized in terms of its half-life. The half-life is the time taken for the radioactivity to decay to 50% of its original activity. 7, record 2, English, - radioactive%20decay
Record number: 2, Textual support number: 2 OBS
radioactive decay: term and definition standardized by ISO in 1997. 8, record 2, English, - radioactive%20decay
Record number: 2, Textual support number: 3 OBS
radioactive decay: term used at Natural Resources Canada - Earth Sciences Sector. 9, record 2, English, - radioactive%20decay
Record 2, Key term(s)
- radio-active disintegration
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Chimie
- Biochimie
- Tiroir - Commission canadienne de sûreté nucléaire
Record 2, Main entry term, French
- désintégration radioactive
1, record 2, French, d%C3%A9sint%C3%A9gration%20radioactive
correct, see observation, feminine noun, standardized
Record 2, Abbreviations, French
Record 2, Synonyms, French
- désintégration 2, record 2, French, d%C3%A9sint%C3%A9gration
correct, feminine noun
- désagrégation radioactive 3, record 2, French, d%C3%A9sagr%C3%A9gation%20radioactive
avoid, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Transformation nucléaire spontanée dans laquelle sont émis des particules ou un rayonnement gamma ou dans laquelle est émis un rayonnement X consécutif à une capture électronique, ou dans laquelle le noyau subit une fission spontanée. 4, record 2, French, - d%C3%A9sint%C3%A9gration%20radioactive
Record number: 2, Textual support number: 1 CONT
Le noyau de certains atomes est par nature instable et susceptible de subir une modification interne spontanée qui donne lieu à l’émission d’énergie : il s’agit de la désintégration radioactive. Les atomes instables s’appellent les «radionucléides». Chacun des radionucléides connus [...] a un rythme de désintégration bien caractéristique exprimé en «période radioactive», le temps nécessaire à la désintégration de la moitié des atomes radioactifs présents à l’origine. 3, record 2, French, - d%C3%A9sint%C3%A9gration%20radioactive
Record number: 2, Textual support number: 2 CONT
Les radio-isotopes les plus fréquemment utilisés en recherche biologique sont le tritium3H et le14C, leur désintégration s’accompagne d’une émission de particules bêta(-). D’autres émetteurs bêta(-) ont un intérêt biologique :35S,45Ca,36Cl,32P, leur énergie varie entre 0 et 18 kev [kiloélectronvolts] pour le3H et de 0 à 155 kev pour le14C. 5, record 2, French, - d%C3%A9sint%C3%A9gration%20radioactive
Record number: 2, Textual support number: 1 OBS
désintégration radioactive : terme et définition normalisées par l’ISO en 1997. 6, record 2, French, - d%C3%A9sint%C3%A9gration%20radioactive
Record number: 2, Textual support number: 2 OBS
désintégration radioactive : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 7, record 2, French, - d%C3%A9sint%C3%A9gration%20radioactive
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física atómica
- Química
- Bioquímica
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 2, Main entry term, Spanish
- desintegración radiactiva
1, record 2, Spanish, desintegraci%C3%B3n%20radiactiva
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- desintegración radioactiva 2, record 2, Spanish, desintegraci%C3%B3n%20radioactiva
correct, feminine noun
- desintegración 3, record 2, Spanish, desintegraci%C3%B3n
correct, feminine noun
- reacción nuclear espontánea 1, record 2, Spanish, reacci%C3%B3n%20nuclear%20espont%C3%A1nea
correct, feminine noun
- transformación radiactiva 4, record 2, Spanish, transformaci%C3%B3n%20radiactiva
correct, feminine noun
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Fenómeno de transformarse espontáneamente el núcleo del átomo de un cuerpo en otro de distinta estructura, dando origen a una radiación. 5, record 2, Spanish, - desintegraci%C3%B3n%20radiactiva
Record 3 - internal organization data 2010-03-01
Record 3, English
Record 3, Subject field(s)
- Analytical Chemistry
- Radiological Physics (Theory and Application)
Record 3, Main entry term, English
- coincidence analysis system
1, record 3, English, coincidence%20analysis%20system
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
A coincidence analysis system for a multichannel nuclear emission tomograph of the type employing scintillation detectors arranged in a plurality of groups ... 1, record 3, English, - coincidence%20analysis%20system
Record 3, French
Record 3, Domaine(s)
- Chimie analytique
- Physique radiologique et applications
Record 3, Main entry term, French
- système d'analyse par coïncidence
1, record 3, French, syst%C3%A8me%20d%27analyse%20par%20co%C3%AFncidence
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Comptage des coïncidences neutroniques [...] Principe physique. Il s’agit d’éliminer, au moyen d’une électronique adéquate, l'information difficilement exploitable due aux réactions([alpha], n) et celle due aux neutrons parasites externes. On ne conserve que les signaux dus aux neutrons de fission spontanée. Cela est obtenu grâce aux systèmes d’analyse par coïncidence qui permettent d’identifier les neutrons selon leur mode de création. 1, record 3, French, - syst%C3%A8me%20d%27analyse%20par%20co%C3%AFncidence
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2008-02-18
Record 4, English
Record 4, Subject field(s)
- Atomic Physics
Record 4, Main entry term, English
- spontaneous fission
1, record 4, English, spontaneous%20fission
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Nuclear fission which occurs without the addition of particles or energy to the nucleus. [Definition standardized by ISO.] 2, record 4, English, - spontaneous%20fission
Record number: 4, Textual support number: 1 OBS
spontaneous fission: term standardized by ISO. 3, record 4, English, - spontaneous%20fission
Record 4, French
Record 4, Domaine(s)
- Physique atomique
Record 4, Main entry term, French
- fission spontanée
1, record 4, French, fission%20spontan%C3%A9e
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Fission nucléaire qui se produit sans apport de particules ou d’énergie au noyau. [Définition normalisée par l’ISO.] 2, record 4, French, - fission%20spontan%C3%A9e
Record number: 4, Textual support number: 1 OBS
fission spontanée : terme normalisé par l'ISO. 3, record 4, French, - fission%20spontan%C3%A9e
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - external organization data 2001-06-13
Record 5, English
Record 5, Subject field(s)
- Atomic Physics
- Compartment - Canadian Nuclear Safety Commission
Record 5, Main entry term, English
- decay chain
1, record 5, English, decay%20chain
correct, standardized
Record 5, Abbreviations, English
Record 5, Synonyms, English
- disintegration chain 2, record 5, English, disintegration%20chain
correct
- radioactive chain 2, record 5, English, radioactive%20chain
correct
- radioactive decay chain 3, record 5, English, radioactive%20decay%20chain
correct
- radioactive series 4, record 5, English, radioactive%20series
see observation
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
Succession of nuclides, each of which transforms by radioactive disintegration into the next until a stable nuclide results. The first member is called the "parent", the intermediate members are called "daughters" and the final stable member is called the "end product". 5, record 5, English, - decay%20chain
Record number: 5, Textual support number: 1 OBS
"Radioactive series" is considered by most specialized sources as a synonym for "radioactive family" (see that other record). 6, record 5, English, - decay%20chain
Record number: 5, Textual support number: 2 OBS
decay chain: term standardized by ISO. 6, record 5, English, - decay%20chain
Record 5, French
Record 5, Domaine(s)
- Physique atomique
- Tiroir - Commission canadienne de sûreté nucléaire
Record 5, Main entry term, French
- chaîne de désintégration
1, record 5, French, cha%C3%AEne%20de%20d%C3%A9sint%C3%A9gration
correct, feminine noun, standardized
Record 5, Abbreviations, French
Record 5, Synonyms, French
- chaîne de désintégration radioactive 2, record 5, French, cha%C3%AEne%20de%20d%C3%A9sint%C3%A9gration%20radioactive
correct, feminine noun
- chaîne de décroissance radioactive 3, record 5, French, cha%C3%AEne%20de%20d%C3%A9croissance%20radioactive
correct, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Série de nucléides dans laquelle chaque élément se transforme en l'élément suivant par une désintégration radioactive(à l'exception de la fission spontanée), jusqu'à formation d’un nucléide stable. [Définition normalisée par l'ISO. ] 1, record 5, French, - cha%C3%AEne%20de%20d%C3%A9sint%C3%A9gration
Record number: 5, Textual support number: 1 CONT
Les noyaux de masses moyennes résultant de la rupture des noyaux fissiles lourds sont très radioactifs. Ils sont eux-mêmes à l’origine de chaînes de décroissance radioactive comportant en moyenne trois nucléides successifs jusqu’à l’obtention d’un nuclide stable. 4, record 5, French, - cha%C3%AEne%20de%20d%C3%A9sint%C3%A9gration
Record number: 5, Textual support number: 1 OBS
chaîne de désintégration : terme normalisé par l’ISO. 5, record 5, French, - cha%C3%AEne%20de%20d%C3%A9sint%C3%A9gration
Record number: 5, Textual support number: 2 OBS
Voir aussi «famille radioactive». 5, record 5, French, - cha%C3%AEne%20de%20d%C3%A9sint%C3%A9gration
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Física atómica
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 5, Main entry term, Spanish
- cadena de desintegración
1, record 5, Spanish, cadena%20de%20desintegraci%C3%B3n
correct, feminine noun
Record 5, Abbreviations, Spanish
Record 5, Synonyms, Spanish
- cadena de desintegración radiactiva 2, record 5, Spanish, cadena%20de%20desintegraci%C3%B3n%20radiactiva
correct, feminine noun
- cadena de decaimiento 3, record 5, Spanish, cadena%20de%20decaimiento
correct, feminine noun
- cadena de descomposición 4, record 5, Spanish, cadena%20de%20descomposici%C3%B3n
proposal, feminine noun
- cadena de elementos radiactivos 5, record 5, Spanish, cadena%20de%20elementos%20radiactivos
feminine noun
- cadena de elementos radioactivos 5, record 5, Spanish, cadena%20de%20elementos%20radioactivos
feminine noun
- cadena de desintegraciones 6, record 5, Spanish, cadena%20de%20desintegraciones
feminine noun
- serie de desintegraciones 6, record 5, Spanish, serie%20de%20desintegraciones
feminine noun
Record 5, Textual support, Spanish
Record 6 - internal organization data 1998-09-30
Record 6, English
Record 6, Subject field(s)
- Atomic Physics
- Nuclear Physics
Record 6, Main entry term, English
- alpha radioactivity
1, record 6, English, alpha%20radioactivity
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
The emission of an alpha radiation. 1, record 6, English, - alpha%20radioactivity
Record 6, Key term(s)
- alpha activity
Record 6, French
Record 6, Domaine(s)
- Physique atomique
- Physique nucléaire
Record 6, Main entry term, French
- radioactivité alpha
1, record 6, French, radioactivit%C3%A9%20alpha
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- activité alpha 2, record 6, French, activit%C3%A9%20alpha
correct, feminine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
«radioactivité a[alpha]» : Elle s’accompagne de l’émission d’une particule a [alpha] [...]. Seuls les éléments lourds ont une radioactivité a [alpha]. 3, record 6, French, - radioactivit%C3%A9%20alpha
Record number: 6, Textual support number: 2 CONT
«radioactivité» : Propriété des nucléides instables de perdre spontanément de leur masse en émettant des particules ou des rayonnements électromagnétiques (photons). Dans le cas où il y a émission de noyaux d’hélium, d’électrons ou de photons, on donne au phénomène le nom de radioactivité a [alpha], de radioactivité B [bêta] ou de radioactivité y [gamma]. 4, record 6, French, - radioactivit%C3%A9%20alpha
Record number: 6, Textual support number: 3 CONT
Les nucléons qui viennent s’ajouter en surface n’ échangent pas avec suffisamment de nucléons intérieurs les forces nucléaires, de sorte que l'énergie de liaison est faible. Les noyaux très lourds ont alors tendance à se transformer en noyaux plus légers et plus stables par radioactivité alpha et fission spontanée. Une particule alpha est un noyau d’hélium(deux protons et deux neutrons). 5, record 6, French, - radioactivit%C3%A9%20alpha
Record number: 6, Textual support number: 4 CONT
Colis type A : Il s’agit de déchets solides de faible activité constitués généralement de papier ou vinyle, petit matériel de laboratoire, déchets métalliques, gravats. [...] Les principales caractéristiques sont : - activité a [alpha] [plus petite que] 4 GBq/t (0,1 Ci/t) [...]. 2, record 6, French, - radioactivit%C3%A9%20alpha
Record number: 6, Textual support number: 1 OBS
La source LAROG utilise sans les distinguer les termes «radioactivité», «émission» et «transformation». Voir la justification qui suit. 5, record 6, French, - radioactivit%C3%A9%20alpha
Record number: 6, Textual support number: 2 OBS
Les principales transformations radioactives, ou types de radioactivités, sont : 1) l’émission alpha, qui a lieu surtout pour les noyaux déficients en neutrons de numéro atomique supérieur à 70. C’est l’émission par un noyau d’une particule alpha, ou noyau d’hélium,4He2 +, qui diminue le numéro atomique de 2 unités et la masse de 4 unités; 2) les transformations ou radioactivités bêta [...]; 4) la radioactivité ou émission gamma [...] 4, record 6, French, - radioactivit%C3%A9%20alpha
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Física atómica
- Física nuclear
Record 6, Main entry term, Spanish
- radiactividad alfa
1, record 6, Spanish, radiactividad%20alfa
correct, feminine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
- actividad alfa 2, record 6, Spanish, actividad%20alfa
correct, feminine noun
Record 6, Textual support, Spanish
Record 7 - internal organization data 1991-04-05
Record 7, English
Record 7, Subject field(s)
- Geology
- Chronology
Record 7, Main entry term, English
- fission-track dating
1, record 7, English, fission%2Dtrack%20dating
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- fission-track method 2, record 7, English, fission%2Dtrack%20method
correct
- spontaneous fission-track dating 3, record 7, English, spontaneous%20fission%2Dtrack%20dating
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A method of calculating an age in years by determining the ratio of the spontaneous fission-track density to induced fission tracks. 3, record 7, English, - fission%2Dtrack%20dating
Record number: 7, Textual support number: 1 OBS
The method ... is also useful for determining the amount and distribution of the uranium in the sample. 3, record 7, English, - fission%2Dtrack%20dating
Record number: 7, Textual support number: 2 OBS
These terms are also written without a hyphen. 4, record 7, English, - fission%2Dtrack%20dating
Record 7, French
Record 7, Domaine(s)
- Géologie
- Chronologie
Record 7, Main entry term, French
- méthode de datation par traces de fission
1, record 7, French, m%C3%A9thode%20de%20datation%20par%20traces%20de%20fission
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- méthode des traces de fission 2, record 7, French, m%C3%A9thode%20des%20traces%20de%20fission
correct, feminine noun
- datation par traces de fission 1, record 7, French, datation%20par%20traces%20de%20fission
correct, feminine noun
- datation par la méthode des traces de fission 3, record 7, French, datation%20par%20la%20m%C3%A9thode%20des%20traces%20de%20fission
correct, feminine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Méthode de datation basée sur le rapport de la densité des traces de fission spontanée à la densité des traces de fission induite 4, record 7, French, - m%C3%A9thode%20de%20datation%20par%20traces%20de%20fission
Record 7, Spanish
Record 7, Textual support, Spanish
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