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Thermally stimulated current and thermally stimulated charge distribution in electron‐beam‐irradiated PMMA
Author(s) -
Kitajima Hironori,
Kodaka Masatsugu,
Tanaka Yasuhiro,
Takada Tatsuo
Publication year - 1999
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(19990730)128:2<1::aid-eej1>3.0.co;2-t
Subject(s) - space charge , materials science , displacement current , current (fluid) , irradiation , cathode ray , thermal conduction , electron , atomic physics , beam (structure) , electron beam processing , charge (physics) , analytical chemistry (journal) , optics , chemistry , physics , composite material , nuclear physics , thermodynamics , chromatography , quantum mechanics
The relationship between the external current J ter (t), the conduction current J c (x, t), and the displacement current ϵ∂E(x, T)/∂t of an electron‐beam‐irradiated PMMA is discussed in terms of measurements of the thermally stimulated current (TSC) and the thermally stimulated space charge distribution (TS‐SCD). ϵ∂E(x, T)/∂t is calculated from TS‐SCD measurements obtained with an improved pulsed electroacoustic (PEA) system. By virtue of the conservation of charge, J c (x, t) is easily calculated from the measured J ter (t) and the calculated ϵ∂E(x, T)/∂t. In this report, an approach to the conduction current analysis using the theory of conservation of charge is described and an analysis of the conduction current in an electron‐beam‐irradiated PMMA is introduced as a typical example. © 1999 Scripta Technica, Electr Eng Jpn, 128(2): 1–6, 1999