Fr.: compteur proportionnel
A device in which an electronic detection system receives pulses that are proportional to the number of ions formed in a gas-filled tube by ionizing radiation.
Fr.: compteur d'impulsion
A device that records counts the total number of pulses received over a given time interval.
Fr.: contrepartie radio
Fr.: compteur à scintillation
A device for detecting and measuring ionizing radiation by means of flashes produced when the radiation particles strike a sensitive layer of phosphor.
šomâreš-e setâré, ~ setâregân
Fr.: comptage d'étoiles
The number of stars that appear in a given region of sky, usually counted on a photographic plate or CCD image.
Fr.: rencontre proche
In a star cluster, a → close encounter that strongly changes a star's velocity.
Fr.: rencontre faible
In a → star cluster, an → encounter that occurs at a distance and produces only very small changes in a star's velocity.