Abstract
Mixtures of Ar + 40 ppm C2H4 and 50% Xe + 50%CF4 have been investigated. The spatial distributions of photoelectron clouds produced by primary scintillations on α- and β-particle tracks, as well as the distributions of photoelectron clouds due to photons from avalanches at the pin anode, have been measured for the first time. For a mixture of 50% Xe + 50%CF4, it has been shown for the first time that CF4 is a photosensitive dopant in a mixture with Xe. For a mixture of Xe + CF4 (1: 1), the maximum electron multiplication factors at the pin anode are K(β)max = 3 × 104 and K(α)max = 3 × 103 at a pressure of 1 atm (abs.) and K(β)max = 104 and K(α)max = 4 × 103 at a pressure of 10 atm (abs.)
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Original Russian Text © B.M. Ovchinnikov, V.V. Parusov, 2014, published in Pribory i Tekhnika Eksperimenta, 2014, No. 1, pp. 56–58.
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Ovchinnikov, B.M., Parusov, V.V. A study of Ar + C2H4 and Xe + CF4 gas mixtures. Instrum Exp Tech 56, 637–639 (2013). https://doi.org/10.1134/S0020441214010266
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DOI: https://doi.org/10.1134/S0020441214010266