Accession Number : AD0275799

Title :   GAMMA INDUCED PHOTOCONDUCTIVITY IN A POLYETHLENE TEREPHTHALATE CAPACITOR

Corporate Author : HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s) : CONRAD,EDWARD E. ; MARCUS,STUART M.

Report Date : 04 MAY 1962

Pagination or Media Count : 1

Abstract : Gamma-induced photoconductivity was measured in a Mylar (polyethylene terephthalate) capacitor over a range of flux from 100 R/sec to 4,000,000 R/sec. The results generally agree with data of other researchers and with the semiempirical relationship: S = Kg to the l power; where S = photoconductivity, 1/(ohm-cm); g = gamma flux, R/sec; K = a constant of proportionality characteristic of the material; l = an exponent, also characteristic of the material. A least squares fit of this curve to the data yields values of K = (6.2 ! 0.6) x 10 to the -19th power 1/(ohm-cm) R/sec and 1 = 1.11 ! 0.01. (Author)

Descriptors :   *CAPACITORS, *DIELECTRICS, *PHOTOCONDUCTIVITY, ETHYLENES, GAMMA RAYS, PHTHALATES, PLASTICS, POLYMERS, RADIATION EFFECTS, TEST EQUIPMENT, TEST METHODS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE