抄録
Creeping discharge and light emission characteristics in Ne gas for the configuration with plane electrodes on the dielectric plate with a stripe backside electrode have been investigated. In the case of the configuration without backside electrode, discharge inception voltage increased monotonically with increasing gas pressure. For the configuration with a backside electrode discharge inception voltage decreased when the backside electrode became wide. Moreover, it tended to saturate over 30kPa for the configuration with a backside electrode. By observations of discharge using image-intensified CCD camera, discharge developed along the dielectric plane surface at 30kPa on 60kPa, on the other hand, discharge grew in the gaseous space away from dielectric surface. These facts suggest that the effect of backside electrode strongly depends on the their width and gas pressure.