Document Type
Article
Journal/Book Title/Conference
Proceedings of the Society of Photo-Optical Instrumentation Engineers (Nanophotonics and Macrophotonics for Space Environments VII)
Volume
8876
Publication Date
9-24-2013
Abstract
Knowledge of the spatial distribution and evolution of embedded charge in thin dielectric materials has important applications in semiconductor, high-power electronic device, high-voltage DC power cable insulation, high-energy and plasma physics apparatus, and spacecraft industries. Knowing how, where, and how much charge accumulates and how it redistributes and dissipates can predict destructive charging effects. Pulsed Electro-acoustic (PEA) measurements— and two closely related methods, Pressure Wave Propagation (PWP) and Laser Intensity Modulation (LIMM)— nondestructively probe such internal charge distributions. We review the instrumentation, methods, theory and signal processing of simple PEA experiments, as well as the related PPW and LIMM methods. We emphasize system improvements required to achieve high spatial resolution for in vacuo measurements of thin dielectrics charged using electron beam injection.
Recommended Citation
J. R. Dennison ; Lee H. Pearson; Pulsed electro-acoustic (PEA) measurements of embedded charge distributions. Proc. SPIE 8876, Nanophotonics and Macrophotonics for Space Environments VII, 887612 (September 24, 2013); doi:10.1117/12.2025667.
Comments
Copyright 2013 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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