Abstract
The performance characteristics of a proportional counter filled with a gas mixture of Freon-14 (CF4) and Xe at pressures of 0.8–14.8 atm were measured. Adding some Xe (a 1–2% concentration is optimal) to CF4 was found to approximately halve the operating high voltage needed for achieving the same gas-amplification factor as in pure CF4, improve the energy resolution, and increase the expected ultimate gas-amplification factor by an order of magnitude.
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Gavrilyuk, Y.M., Gangapshev, A.M., Kuz'minov, V.V. et al. Characteristics of a Proportional Counter Filled with CF4 and Additions of Xe. Instruments and Experimental Techniques 46, 26–31 (2003). https://doi.org/10.1023/A:1022570904212
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DOI: https://doi.org/10.1023/A:1022570904212