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GAMMA-RAY LOGGING [2 records]

Record 1 1977-11-14

English

Subject field(s)
  • Geophysics
OBS

gamma-gamma log: A "gamma-ray log" that records the intensity of induced gamma rays emitted by a subsurface formation as a result of gamma-ray bombardment. It is obtained by lowering into a borehole a source that emits gamma rays and a detector (shielded from the source) that receives signals indicative of the gamma rays scattered back to it from the surrounding rocks.

French

Domaine(s)
  • Géophysique
OBS

Le principe d'opération du carottage: rayons gamma-rayons gamma est généralement différent des techniques de carottage par radioactivité discutées précédemment. Le procédé de désintégration radioactive de la source change la charge du noyau sans changer le nombre de nucléons.

OBS

Dans la source consultée, «gamma» était indiquée par la lettre grecque correspondante.

Spanish

Save record 1

Record 2 1977-03-01

English

Subject field(s)
  • Geophysics
  • Geological Prospecting
  • Geological Research and Exploration
CONT

Gamma ray logging is simply the measurement of the natural radioactivity of the various formations in a borehole.

Key term(s)
  • gamma-ray logging

French

Domaine(s)
  • Géophysique
  • Prospection géologique
  • Recherches et prospections géologiques
CONT

Le carottage au rayonnement gamma consiste tout simplement à mesurer la radioactivité naturelle des diverses formations dans un trou de forage.

Spanish

Save record 2

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