Characterization of new FPS (Focus Projection and Scale) vidicons for scientific imaging applications
Several new photoconductors now commercially available as targets in Type 7803 FPS (Focus Projection and Scan) electrostatically focussed vidicons have been characterized for use as radiometric sensors in transient illumination and single frame applications. These include Saticon (Se + Te + As), Newvicon (ZnSe), Pasecon (CdSe), and Plumbicon (PbO). Samples from several domestic and foreign manufacturers have been evaluated for photoconductive response time and responsivity at selected narrow wavelength bands, including 410 nm, 560 nm, and 822 nm. These data are compared with performance data from older target materials including antimony trisulfide (Sb2S3) and silicon. Dynamic range and resolution trade-offs as functions of read-beam aperture diameter and raster size are also presented. The point spread functions for standard 1-mil vidicons and for increased apertures of 1.5, 2.0, 3.0, and 4.0-mil are also discussed.
NASA STI/Recon Technical Report N
- Pub Date:
- June 1988
- Imaging Techniques;
- Nuclear Weapons;
- Instrumentation and Photography