File:Detector regions (es).JPG

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English: Plot of relative level of ion-pair current with increasing voltage applied between anode and cathode for a wire cylinder ionisation detection system with constant incident ionising radiation. This covers the practical areas of operation of the Geiger-Muller counter, the proportional counter and the ionisation chamber. Alpha particles are more ionising than beta particles, so more current is produced in the ion chamber region by alpha than beta, but the particles cannot be differentiated. More current is produced in the proportional counting region by alpha particles than beta, but by the nature of proportional counting it is possible to differentiate alpha and beta pulses. In the Geiger region, there is no differentiation of alpha and beta as any single ionisation event in the gas results in the same current output. Note that gamma and X-ray photons result in the same plot shape; current also being dependent on radiation energy
Español: ‘’’Variación de la carga de par de iones con la tensión aplicada:’’’
Este diagrama muestra la relación de las regiones de detección de gases, utilizando un concepto experimental de la aplicación de un voltaje variable a una cámara cilíndrica que se somete a radiación ionizante. Partículas Alfa y Beta se representan para demostrar el efecto de diferentes energías ionizantes, pero el mismo principio se extiende a todas las formas de radiación ionizante. La cámara de iones y las regiones proporcionales pueden operar a presión atmosférica, y su salida varía con la energía de radiación. Sin embargo, en la práctica la región Geiger se opera a una presión reducida (alrededor de una décima atmósfera) para permitir el funcionamiento con voltajes mucho más bajos; de lo contrario serían necesarios impracticables altos voltajes. La lectura de la región Geiger no diferencia entre las energías de radiación.
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Author Doug Sim

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current20:10, 7 March 2016Thumbnail for version as of 20:10, 7 March 20163,774 × 1,860 (488 KB)Wiki LIC (talk | contribs){{Information |description={{en|1=Plot of relative level of ion-pair current with increasing voltage applied between anode and cathode for a wire cylinder ionisation detection system with constant incident ionising radiation. This covers the practical...

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