NUCLEAR PULSE TESTING OF VIDICON AND IMAGE ORTHICON CAMERA HEADS
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 neutrons/cc (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 neutrons/cc and approximately 100,000 roentgens (gamma) per burst. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1961
- Accession Number
- AD0270724
Entities
People
- Thomas Kothstein
Organizations
- Frankford Arsenal