Using thin quartz fibres as insulating spacers, a simple way to reduce the anode-cathode gap is presented for a higher rate capability for a multiwire proportional counter. For a prototype counter using \Phi12-\mum anode wires and \Phi250-\mum quartz fibre spacers, we measured a gas gain of 1000 at an anode voltage of 700 V and drift voltage of -300 V with an energy resolution of 22% FWHM in an Ar-CH4 (90/10) gas mixture. The gas gain remained stable up to a rate of $4 \times 10^4 Hz/mm^2 $, which is a much higher rate than obtained with a conventional MWPC.
이 논문을 인용한 문헌 (0)
- 이 논문을 인용한 문헌 없음