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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
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