Proton microprobe analysis of water trees in underground high voltage cables

M. Ahmed, M. A. Garwan, M. A. Al-Ohali, Z. Hamouz, K. Soufi, R. Minqin, I. Rajta, F. Watt

Research output: Contribution to journalConference article


The micro-PIXE technique was employed to analyze water trees in the polymeric insulation of some field-aged underground high voltage cables from the Eastern Province of Saudi Arabia. X-ray spectra of water trees, the inner and outer semiconductive compound layers of the cable samples, and the insulation matrix were acquired. Simultaneously, two-dimensional elemental distribution profiles across the water trees were also obtained. The results show how knowledge of the elemental constituents of water trees on a microscopic scale can be useful in attempts to understand premature degradation of underground power cables.

Original languageEnglish
Pages (from-to)548-553
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - Sep 1 2003
Event8th International Conference on Nuclear Microprobe Technology - Takasaki, Japan
Duration: Sep 8 2002Sep 13 2002


  • Micro-PIXE measurements
  • Water trees in HV cables

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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