Optimum characteristic and structural design of PWB radiation detector considering gas amplification reaction

Radiation detector to act as radiation sensor is made by printed circuit board technology for realizing the micro pixel patterns on the large-sized substrate. To improve the radiation sensitively of PWB sensor, it is necessary to enhance the electric discharge properties around pixels under high-voltage condition. We therefore studied the insulating properties of PWB dielectric material experimentally and evaluated PWB sensor structures utilizing simulation technology with the gas amplification process of a recoil electron and read-out signal on sensor electrode. As these results, we could decide about a design and development guideline for a PWB radiation detector products.