E. Fortunato et al., Understanding the impact of additives with large inelastic cross sections on drift chamber performance, NUCL INST A, 421(1-2), 1999, pp. 278-283
We present measurements and explain a model of how gases with large cross s
ections for inelastic interactions with electrons significantly affect drif
t velocity in gaseous detectors. Empirical data confirm the model's predict
ions and agree with transport calculations. This understanding may allow ch
amber designers to choose additives that optimize detectors' performance. (
C) 1999 Elsevier Science B.V. All rights reserved.