Nondestructive Laser Method for Measuring Charge Profiles in Irradiated Polymer Films
- 1 December 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 29 (6), 1644-1649
- https://doi.org/10.1109/tns.1982.4336420
Abstract
Relative charge-density distributions in the thickness direction of thin (>10μm) polymer films are determined directly and accurately with a new laser-induced pressure-pulse (LIPP) method: A pressure pulse is generated in the sample by applying a short (70ps) and energetic (1-11mJ) light pulse from a Nd:YAG laser to a specially coated surface of the sample. Stress effects within this surface layer and possibly the recoil caused by ablation of some target material generate the desired pressure pulse of less than 1ns duration which propagates through the sample. From the electrode currents, the charge distribution can be evaluated. The new method is described in detail and some results for 20 to 50μm thick films of Teflon FEP, Mylar PETP, and Kynar PVDF are given.Keywords
This publication has 20 references indexed in Scilit:
- Electron Beam Probing of Space Charge in Pet FilmsIEEE Transactions on Electrical Insulation, 1982
- Electron beam method for detecting charge distributions in thin P o l y e t h y l e n e t e r e p h t h a l a t e filmsJournal of Applied Physics, 1982
- High-Resolution Laser-Pulse Method for Measuring Charge Distributions in DielectricsPhysical Review Letters, 1982
- Radiation-Induced Charge Dynamics in DielectricsIEEE Transactions on Nuclear Science, 1982
- Measurement of charge distribution in polymer electrets by a new pressure-pulse methodPolymer Bulletin, 1981
- Stress-Wave Probing of Electric Field Distributions in DielectricsPhysical Review Letters, 1981
- Short-pulse oscillator development for the Nd:glass laser-fusion systemsIEEE Journal of Quantum Electronics, 1981
- Determination of Spatial Distribution of Charges in Thin DielectricsPhysical Review Letters, 1977
- New Principle for the Determination of Potential Distributions in DielectricsPhysical Review Letters, 1977
- Measurement of charge distribution in electretsReview of Scientific Instruments, 1977