roentgen

• Unité de mesure de l'exposition aux rayonnements ionisants, correspondant à la quantité de rayonnement qui produit une unité électrostatique de charge dans un centimètre cube d'air sec.

A unit of measurement for exposure to ionizing radiation, specifically the amount that produces one electrostatic unit of charge in one cubic centimeter of dry air.

1. Unit of radiation exposureC2formalscientific

   A unit of measurement for ionizing radiation, specifically the amount of X-rays or gamma rays that produce one electrostatic unit of charge in one cubic centimeter of dry air at standard temperature and pressure.

   roentgen (unité de mesure)

   • The radiation level was measured at 5 roentgens per hour.
   • Early X-ray machines could expose patients to several roentgens.
   • The Geiger counter registered a reading of 0.2 roentgens.