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Detector System:
The Ultraviolet Imager detector system uses an intensified, passively cooled CCD array. The analog and digital detector boards are located in close proximity to the CCD. The design of the image tube incorporates an opaque CsI photocathode deposited on the input chevron microchannel plates. A fast P31 phosphor is used to reduce decay times. Radiation hardened, Cesium doped fiber optics couple the image tube to the CCD. Correlated double sampling techniques are incorporated in the electronic hardware design to reduce digital to analog noise sources in the data. To reduce pick up noise, the high voltage power supply is located near the image tube. To protect against discharges, the high voltage power supply, the high voltage leads to the image tube and the image tube are entirely potted using Conap EN-11 potting material.
- The key individuals responsible for the design, assembly, and testing of the detectors are Alex Tejada, Hassan Dougani, Mike Clem, Chuck Fellows, Tim Baldridge, and Larry Savage. The manufacturer of the CCD is Thomson CSF. The manufacturer of the image tube is SAIC, San Diego, CA. The manufacturer of the high voltage power supply is K&M.
Photographs: (Click image to view larger version.)
UVI detector boards, HVPS, and image tube during assembly (89K)
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