| Abstract: | Abstract Properties of a self-quenching streamer (SQS) tube with an Ar-isoC4H10 (75:25) mixture containing 2.5% methylal vapor have been investigated for uniform α-ray irradiation. The effect of electro-negative methylal as the second quenching gas has been studied for avalanche sizes, pulse shapes of current signals, dead zones, and counting-rate characteristics of the SQS tube. The dead zone and counting-rate characteristics are improved very much by the use of the mixture containing methylal. |
