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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
Sanasi
Manba Oʻzimning ishim
Muallif Doug Sim
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6 Iyun 2012

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Sana/VaqtMiniaturaOʻlchamlariFoydalanuvchiIzoh
joriy18:46, 3-Fevral 202318:46, 3-Fevral 2023 dagi versiya uchun tasvir960 × 720 (60 KB)DougsimGreater clarity and improved text to cover gas multiplication
11:52, 15-Noyabr 201511:52, 15-Noyabr 2015 dagi versiya uchun tasvir1 500 × 1 125 (109 KB)Dougsimimproved diagram and text added.
22:52, 13-Noyabr 201522:52, 13-Noyabr 2015 dagi versiya uchun tasvir1 500 × 1 125 (105 KB)DougsimText and diagram added to show conceotual set-up and explain differences in operating pressure for practical applications.
09:24, 10-Yanvar 201509:24, 10-Yanvar 2015 dagi versiya uchun tasvir960 × 720 (32 KB)DougsimAdded in additional plot to show difference in ionisation effect of alpha and beta particles.
21:45, 6-Iyun 201221:45, 6-Iyun 2012 dagi versiya uchun tasvir960 × 720 (21 KB)Dougsimtitle in image changed to include constant radiation.
16:06, 6-Iyun 201216:06, 6-Iyun 2012 dagi versiya uchun tasvir960 × 720 (21 KB)Dougsim

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