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

BUCKY RAY [1 record]

Record 1 2010-07-29


Subject field(s)
  • Radiological Physics (Theory and Application)

Grenz rays are a form of black light. Similar to ultraviolet light, x-rays, and gamma rays, these are all composed of photons, which are packets of electro-magnetic energy traveling at the speed of light. Grenz rays are produced at low kilovoltages giving them a very low penetration power. Half their energy is absorbed within the first half millimeter of tissue, which means that they do not penetrate beneath the skin.


Grenz rays ... are sometimes called Bucky rays, after Bucky, who established their value as a therapeutic agent.


The word "grenz" comes from the German "grenze" meaning "border". The grenz rays were considered to be in a gray zone between x-rays and ultraviolet radiation by early investigators.


grenz ray; Bucky ray: terms usually used in the plural.

Key term(s)
  • grenz rays
  • Bucky rays


  • Physique radiologique et applications

rayon limite; rayon de Bucky : termes habituellement utilisés au pluriel.

Key term(s)
  • rayons limites
  • rayons de Bucky


Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau


Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

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: