US EPA

1392843 

Technical Report 

High-speed FPS vidicon camera 

Yates, GJ; Gallegos, RA; Barron, MH; Bucher, H 

1992 

NTIS/02970710 

GRA and I 

GRA and I 

A new high-speed, high-resolution electrostatic deflection vidicon camera for use with high-definition diode electron gun Focus Projection and Scan (FPS) vidicons has been designed and partially developed. It is asynchronously resettable to permit time-phased synchronization with randomly occurring transient optical events. Programmable rasters allows selection of nonstandard variable size and speed formats for specific imaging aspect ratios and readout requirements. Readout rates as high as 625 Hz (1.6 ms field period) with 256 scan lines per field with limiting resolution equal or and gt; 20 lp/mm and dynamic range equal or and gt; 200:1 from Plumbicon (PbO) and Saticon (Se-As-Te) targets are presented. Charge equilibrium problems resulting in superlinear transfer characteristics from transient low intensity pulsed illumination are discussed. Camera circuitry and potential scientific and medical applications are included. 5 refs. 

Television Cameras; Arsenic Alloys; Design; Lead Oxides; Photoconductivity; Photoconductors; Selenium Alloys; Sensitivity; Spatial Resolution; Targets; Tellurium Alloys; Vidicons; EDB/440600