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The penetration of energetic electrons into materials is an important fundamental process which is useful in understanding radiation effects, such as crosslinking, and also in evaluating damaging effects from charge accumulation such as in spacecraft charging. While energy deposition is well known by traditional dose measurement methods, there is relatively little experimental information about net...
The measurement of volume charges within insulators has been attempted by various methods, including thermal, optical, mechanical, and electrical stimulation of the sample. A new method incorporating pulse electrical stimulation and pulsed acoustic detection is reported here. This technique is an extension of a previously reported [1] high frequency AC steady state electro-acoustic measurements in...
A series of controlled experiments using injected electron space charge layers has been used to study discharge propagation. This experimental technique is unique in its ability to investigate discharges where equipotential surfaces are not the major sources of the field but rather space-charge clouds provide the driving force.
Electrical discharges in gases originate when conditions permit the development of ionization. Such ionization can occur in pressurized gases when electric fields cause free electrons to gain sufficient energy between impacts with gas molecules. The progressive development of field-driven ionization, the electron avalanche, increases or decreases along the path to the anode according to the field...
Solid insulators are used for support in many types of high voltage apparatus. Because these supports are often composed of high resistivity materials, static charges may be accumulated and held by them for extended periods of time. The electric field distribution in the vicinity of the insulator is then altered so that electrical breakdown in the surrounding gas may result.
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