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GEIGER REGION [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-11-01

English

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

The lower limit of the Geiger region.

OBS

Geiger threshold: term officially approved by the Electronics and Telecommunications Terminology Committee.

French

Domaine(s)
  • Physique radiologique et applications
CONT

Pour tirer le parti maximum du compteur dans la région linéaire de variation du seuil de Geiger, le seuil du circuit associé doit être inférieur à 0,2 volt.

OBS

seuil de Geiger : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL).

Spanish

Campo(s) temático(s)
  • Física radiológica (Teoría y aplicación)
Save record 1

Record 2 2011-11-01

English

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

The range of operating voltages of a radiation counter tube within which the output charge per count does not depend on the nature of the initial ionizing event.

OBS

Geiger region : term officially approved by the Electronics and Telecommunications Terminology Committee.

French

Domaine(s)
  • Physique radiologique et applications
OBS

région de Geiger : terme uniformisé par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL).

Spanish

Campo(s) temático(s)
  • Física radiológica (Teoría y aplicación)
Save record 2

Record 3 2002-10-30

English

Subject field(s)
  • Geophysics
  • Facilities and Instruments (Astronomy)
CONT

Orbiting Geophysical Observatory(OGO), series of six orbiting observatories launched between 1964 and 1969 by the National Aeronautics and Space Administration(NASA) to study the earth's atmosphere, ionosphere, and magnetosphere and the solar wind. In order to provide global coverage, three of the satellites(OGO-2, OGO-4, and OGO-6) were launched into low polar orbits while the other three(OGO-1, OGO-3, and OGO-5) were placed in eccentric orbits ranging out as far as almost 92, 830 mi(150, 000 km). Each observatory carried 20-25 instruments, including cosmic ray detectors, counters, and telescopes, ionization chambers, Geiger counters, magnetometers, spectrometers, photometers, micrometeoroid detectors, and ion and electron traps. Among the significant achievements of the OGO program were the first observations of daytime auroras and of the protons responsible for the ring of electric current that surrounds the earth during magnetic storms, the collection of data showing the interaction of the solar wind with the earth's magnetosphere, and the verification of the existence of the plasmapause, the inner boundary of the region of trapped radiation in the magnetosphere.

French

Domaine(s)
  • Géophysique
  • Installations et instruments (Astronomie)

Spanish

Save record 3

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