Accession Number:

AD0266747

Title:

STUDY OF REUSABLE PHOTOSENSITIVE ELECTRON RECORDING MEDIA

Descriptive Note:

Interim eingineering rept. no. 2, 15 Jul-14 Oct 61

Corporate Author:

ITT FEDERAL LABS SAN FERNANDO CA

Personal Author(s):

Report Date:

1961-11-06

Pagination or Media Count:

62.0

Abstract:

An optical image recording film is developed capable of reuse through 100 cycles of exposure, and able to resolve 100 lines per millimeter with speed equivalent to ASA 10. Photodielectric PD eff cts in CdSeCu are interpreted as due to photoconduction and carrier trapping. Vacuum annealing activated powders enhanced PD response by a factor of two over earlier results. The deformation of thermoplastic film using the PD effect is analyzed, and curves predicting contrast versus exposure illuminance are presented for phase contrast readout. This readout method is capable of reproducing gray scales with omnidirectional resolution near program requirements. The status of tests on various plastics is reported, with the tentative conclusion that a low molecular weight polystyrene resin Dow Ps-2 is most suitable. The first photodielectrically deformed picture of a course bar pattern is reported using CdSeCu powder dispersed in carnauba wax. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE