Speaker
Dr
Tadeusz Kowalski
(AGH, University of Science and Technology, Cracow)
Description
Systematic measurements of gas amplification factors over the range 1 to
5 10$^5$, were performed for Ar + 20%CO$_2$ and Ar + 6.4% CO$_2$+ 2.5% N$_2$
mixtures as a function of the applied voltage between cathode and anode for
the following working gas pressure: 0.05, 0.1, 0.3, 0.5 and 0.65 MPa.
Full current characteristics, starting from recombination mode up to limited proportionality, have been measured.
Single anode (radius of anode ra = 10, 15 and 25\, $\mu$m) cylindrical counters ( radius of cathode rk = 4, 5 and 6.5 mm) were used for the measurements.
First Townsend coefficients were also determined.
Obtained results will be presented.
Primary author
Dr
Tadeusz Kowalski
(AGH, University of Science and Technology, Cracow)
Co-author
Dr
Stefan Koperny
(AGH, University of Science and Technology, Cracow)
