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IHEP 96 - 74
S.P. Denisov, A.Yu. Dushkin, Yu.V. Gilitsky, V.N. Mikhailin, V.A. Onuchin, I.V. Shein, A.P. Soldatov, V.V. Sytnik
Use of Heavy Freons in Gas Ionization Calorimetry
Protvino, 1996.- p.6, figs 6, refs.:10.


The results of the first study of a gas ionization calorimeter filled with heavy freon $C_3 F_8$ are reported. $C_3 F_8$ is fast gas. Its density is 4.4 times higher than that of the $90\%Ar + 10\% CF_4$ mixture previously used. The dependence of the calorimeter response on $C_3 F_8$ pressure is presented.


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