Galileo's solid state imager fends off radiation

Details Galileo's solid state imager fends off radiation Galileo's solid state imager fends off radiation

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aeam...22...29l&link_type=abstract

Aerospace America (ISSN 0740-722X), vol. 22, Sept. 1984, p. 29, 31, 99.

Physics

Galileo Spacecraft, Radiation Shielding, Solid State Devices, Television Cameras, Charge Coupled Devices, Ion Implantation, Optical Measuring Instruments, Telescopes

Scientific paper

The Galileo spacecraft's Solid State Imager (SSI) is a slow scan TV camera consisting of a 150-cm telescope and an 800 x 800-element, virtual phase CCD which will increase light sensitivity by 100 times over the vidicon tube camera used on Voyager missions. The CCD will be shielded by a 1-cm thick tantalum layer that covers the sensor, and the light-admitting aperture will be covered with a quartz plug. Only about one electron in 10,000 will penetrate the shield. The CCD will thereby receive 2500 rads during the 20-month mission, although it can withstand at least 10,000 rads.

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