Abstract

Abstract : Investigations into corona-discharge photography show that subjects placed in a high-voltage field exhibit corona that may be recorded photographically. The corona formation and structure depend on the applied field strength and gradient, the type of film used and the waveform and the pulse repetition rate of the applied voltage. Specimen properties affecting corona formation include resistivity, geometry, and moisture content; other factors may also be important. The discharge mechanism is similar to that of classical point to plane studies. CD photography is successfully used to study temperature dependence of skin hydration in distilled water and saline solutions. Evidence indicates that variations in certain physiological parameters may be used to determine response to psychological stimuli via corona discharge photography.

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