Title :
Pulsed electro-acoustic technique applied to in-situ measurement of charge distribution in electron-irradiated polymers
Author :
Griseri, V. ; Fukunaga, K. ; Maeno, T. ; Laurent, C. ; Lévy, L. ; Payan, D.
Author_Institution :
Lab. de Genie Electr. de Toulouse, Univ. Paul Sabatier, Toulouse, France
Abstract :
Dielectric materials are frequently used in satellite structures for substantial savings in weight. Their dielectric nature and the effect of different forms of radiation encountered in space combine to accumulate electrical charges resulting in the occurrence of electrostatic discharges which cause harmful interference with the electronic parts of the satellite, leading to its malfunction or to a total loss of equipment control. Therefore, the behavior of dielectrics under irradiation must be investigated before being used in space. A pulsed electroacoustic (PEA) device was mounted in an irradiation chamber to monitor the spatial distribution of electrons implanted into polymer films during electronic irradiation. Internal charge accumulation was clearly identified. Penetration depth versus energy was double checked by comparing PEA with surface potential data.
Keywords :
acoustoelectric devices; dielectric materials; electron radiation; electrostatic discharge; partial discharge measurement; polymers; pulsed electroacoustic methods; space charge; charge distribution measurement; dielectric materials; electrical charges; electron-irradiated polymers; electronic irradiation; electrons implantation; electrostatic discharges; internal charge accumulation; irradiation chamber; polymer films; pulsed electro-acoustic technique; satellite structures; space charge; spatial distribution; surface potential; Charge measurement; Current measurement; Dielectric losses; Dielectric materials; Dielectric measurements; Electrostatic measurements; Polymers; Pulse measurements; Pulsed electroacoustic methods; Satellites;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TDEI.2004.1349795