A sparkless resistive glass correction electrode for the spherical proportional counter
I. Katsioulas, I. Giomataris, P. Knights, M. Gros, X.F. Navick, K., Nikolopoulos, I. Savvidis
TL;DR
This paper introduces a novel resistive glass correction electrode for spherical proportional counters that enhances electric field uniformity and reduces sparking, validated through simulations and experimental measurements.
Contribution
It presents a new resistive glass electrode design for spherical counters, improving field homogeneity and operational stability over previous non-resistive structures.
Findings
Enhanced electric field homogeneity demonstrated
Reduced sparking probability observed
Stable detector operation confirmed
Abstract
A new anode support structure for the spherical proportional counter is presented that incorporates a resistive correction electrode made of glass. This electrode improves the electric field homogeneity versus angle while suppressing the probability and intensity of sparks compared to non-resistive alternatives. The configuration of the correction electrode was optimised with simulations. Such support structures have been constructed and measurements have demonstrated homogeneous response of the detector and operational stability. A measurement of the resistivity of the glass used is also presented.
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