TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

SUBSTANCE EMETTANT PARTICULES ALPHA [1 record]

Record 1 1993-09-10

English

Subject field(s)
  • Atomic Physics
  • Chemistry
  • Radiation Protection
CONT

Alpha particles are positively charged, comparatively heavy particles made up of two protons and two neutrons. Because of their size, alpha particles have little penetrating power and can be stopped by a sheet of paper or a layer or two of skin. However, if an alpha-emitting substance is inhaled or swallowed, it can do more damage than other radiation because of the mass and charge of the alpha particles.

CONT

... for alpha-emitting material to have an effect on higher animals, it must be ingested (swallowed, inhaled or deliberately injected). Beta-emitting material must be ingested or come in direct contact with the surface of the body. Only gamma-emitting material can cause harm from a distance....

French

Domaine(s)
  • Physique atomique
  • Chimie
  • Radioprotection
OBS

Voir aussi «émetteur (de particules) alpha».

Spanish

Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: