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MACHE UNIT [1 record]

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Alphabetical list of terms

Record 1 2009-01-30

English

Subject field(s)
  • Metrology and Units of Measure
  • Nuclear Physics
  • Mache unit
    correct
DEF

A unit of radioactivity equal to that quantity of radon derived from 1 liter of specified water which gives rise to a saturation current of 10-3 electrostatic unit.

OBS

The scientific community stopped using the Mache unit in 1985: the becquerel is used now instead.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique nucléaire
  • unité Mache
    correct, feminine noun
OBS

L'unité Mache a été utilisée afin d'indiquer la concentration de radon dans les eaux de sources et dans l'air. Elle a été remplacée par le becquerel en 1985.

OBS

L'unité Mache doit son nom au physicien autrichien Heinrich Mache (1876-1954).

Spanish

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