Effect of air on gas amplification characteristics in argon–propane (1%)-based proportional counters for airborne radon monitoring

Experimental gas amplification study in boron-lined proportional counters for neutron detection

“…Although the measurements described here involved extended ionisation tracks with a large spread of energies, no significant differences were noticed for the gas amplification mechanism compared to earlier measurements . And this was also pointed out in our recent work (Curzio et al, 2005), when we were dealing with the air effect on gas amplification characteristics in proportional counters intended for airborne radon monitoring.…”

“…In the particular case of m=0, this first order approximation reduces simply to the classical Zastawny formula (Zastawny, 1966). Although these two approximations are sometimes found sufficient to describe roughly the experimental gas gain data (Baaliouamer et al, 1996), the second and third order approximations are, however, often required when accurate parameterization is desired over an extended range of working variables, particularly in the low S a range (Curzio et al, 2005). In the third order approximation, one has to keep four terms of the control variable development, i.e.,…”