New design of the Pulsed Electro-Acoustic upper electrode for measurements under irradiation

In the last past ten years several Pulsed Electro- Acoustic (PEA) set-ups have been designed to perform space charge distribution measurements on irradiated films. These dielectrics are commonly used in spatial applications. Recently, a new Open Ring Electrode (ORE) has been developed to perform measurements during irradiation. In this paper, we will present the first measurements at atmospheric pressure on previously irradiated polymers. The aim is to validate the measurement configuration before introducing it in the irradiation chamber. To do so we will compare the experimental results with the ones obtained by the classic PEA set-up.