Accession Number:

AD0270724

Title:

NUCLEAR PULSE TESTING OF VIDICON AND IMAGE ORTHICON CAMERA HEADS

Descriptive Note:

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s):

Report Date:

1961-10-01

Pagination or Media Count:

1.0

Abstract:

Results are reported of nuclear pulse irradiation tests on two electrovisual subsystems a vidicon camera head with preamplifier, and an image orthicon camera head. Both were fully energized when subjected to several combined neutron and gamma pulses having half-power pulse widths of 15 milliseconds. A fully operating nuvistorized vidicon camera head was exposed to a total of ten nuclear pulses, each pulse containing integrated fluxes of 2.21 X 10 to the 14th power neutronscc 1 kev and above and 100,000 roentgens gamma. No permanent degradation of the system performance factors was detected other than the lowering of signal-to-noise ratio caused by the browning of the vidicon faceplate. The fully energized but nontelevising image orthicon was exposed to three nuclear pulses. Photocathode and beam currents were monitored through each pulse and sensitivity information gained in this manner. Further tests proved that physical change in the photocathode resulted in a definite deterioration of the image orthicon photosensitivity. The faceplate and photocathode received a dose of 1.29 X 10 to the 14th power neutronscc and approximately 100,000 roentgens gamma per burst. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE