Author/Authors :
R. Kollefrath، نويسنده , , M. and Paschhoff، نويسنده , , V. and Spegel، نويسنده , , Phillip M. and Topp، نويسنده , , U. and Fabjan، نويسنده , , C. and Herten، نويسنده , , G. and Landgraf، نويسنده , , U. and Mohr، نويسنده , , W. and Treichel، نويسنده , , M.، نويسنده ,
Abstract :
The lifetime of drift tubes operated with Ar–CH4–N2 91–5–4, Ar–CH4–N2–CO2 94–3–2–1, Ar–CF4–N2–CO2 94.5–0.5–2–3 and Ar–CO2 80–20 is studied under various conditions. H2O and ethanol were successfully tested as a remedy against ageing.
thod of glow discharge in argon is used to clean the cathode and inefficient wires and first results of this treatment are presented.
