TERMIUM Plus®

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

DISINTEGRATION PER SECOND [3 records]

Record 1 - external organization data 2011-09-30

English

Subject field(s)
  • Metrology and Units of Measure
  • Nuclear Physics
  • Compartment - Canadian Nuclear Safety Commission
Universal entry(ies)
DEF

The International System unit of activity of a radionuclide, equal to the activity of a quantity of a radionuclide having one spontaneous nuclear transition per second.

CONT

One becquerel equals one disintegration per second. The becquerel replaces the curie; 1 Bq is approximately equal to 27 picocuries.

OBS

becquerel; Bq: term and symbol standardized by ISO.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique nucléaire
  • Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s)
DEF

Unité SI [Système international] de mesure d'activité nucléaire [...] égale à l'activité d'une quantité de nucléide radioactif pour laquelle le nombre de transitions nucléaires spontanées par seconde est égal à 1.

CONT

Un becquerel correspond à une désintégration par seconde. Le becquerel remplace le curie comme unité de mesure; 1 becquerel équivaut à environ 27 picocuries.

OBS

De Henri Becquerel, prix Nobel 1903 (prix commun avec Marie et Pierre Curie).

OBS

becquerel; Bq : terme et symbole normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
  • Física nuclear
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
Entrada(s) universal(es)
DEF

Unidad de actividad del Sistema Internacional de Unidades (SI) [igual a la] radiactividad de una muestra que se desintegra, como promedio, una vez por segundo.

Save record 1

Record 2 - external organization data 2005-08-04

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
CONT

Activity is measured in d.p.s., Bq or Ci.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

On mesure l'activité en désintégration par seconde (d.p.s.), en becquerels (Bq) ou en curies (Ci).

Spanish

Save record 2

Record 3 1996-03-31

English

Subject field(s)
  • Metrology and Units of Measure
  • Atomic Physics
CONT

... it [the Task Force] divided low-level wastes into four categories or classes ... based on the concentration of radioactivity (measured in gigabecquerels per cubic metre (GBq/m³) of the waste material....

OBS

... a becquerel is defined as one nuclear disintegration per second.

Key term(s)
  • gigabecquerel per cubic meter

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique atomique

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
  • Física atómica
Save record 3

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