Conductivity changes produced in ice by optical irradiation 0.8 to 2.7 [mu]
By: by P. R. Camp and D. L. Spears
Series: Research report / Cold Regions Research & Engineering Laboratory -- 175
Publisher: U.S. Army Materiel Command, Cold Regions Research & Engineering Laboratory
Published: 1966
Place of publication: Hanover, N.H
Language: eng
Number of pages: 27
Subjects: Ice; Electric properties; Electric conductivity; Photoconductivity
Description: A series of experiments attempt to produce orientational defects and ions by optical injection. The basic experiment was one on transient photo-conduction produced by an intense light pulse. The effects of intensity and wavelength of the incident light, temperature of the sample and area of illumination of the sample were studied. It was concluded that neither orientational defects nor ion pairs were produced in appreciable quantity by the light but that the apparent photo-conduction observed was the result of flash-heating of a thin surface region which had significantly different properties than had the bulk of the sample. Simple and somewhat speculative assumptions regarding the photo-generation process lead to the conclusion that the photo-efficiency, at least for ion pair production, must be very low. (Author).
Notes: "August 1966."

Includes bibliographical references (p. 27).

"DA Task IV014501B52A02."