Dose Rate Dependence of Electrical Characteristics of Lead Zirconate Titanate Capacitors

概要

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The influence of $\gamma$-radiation dose rate on the electrical properties of lead zirconate titanate capacitors was investigated. More severe degradations in dielectric constant, coercive field, remanent polarization and capacitance–voltage ($C$–$V$) curves occurred with increasing radiation dose at lower dose rates. The electrical properties exhibited distinct radiation dose rate dependence and the worst-case degradation occurred at the lowest dose rate. The radiation-induced degradation of parameters such as the coercive field drift and distortion of the $C$–$V$ curve can be recovered partly through post-irradiation annealing.
2003-10-15