Time-amplitude characteristics of thin-walled drift tubes (straws) for gas mixtures ArCO2 with CF4 and O2 additives

Abstract

Results of the investigation of time-amplitude characteristics of thin-walled drift tubes (straws) of different diameters for gas mixtures ArCO2 with CF4 and O2 additives are described. An essential reduction of the sensitivity time of the straw for CF4 additive is shown, especially with increase the straw diameter. O2 additive influences the time parameters of the straw insignificantly. CF4 or O2 additives with the so-called cleaning properties are of interest for optimization of parameters of detectors with small sensitivity time under the condition of high loadings.