Computer Science – Performance
Scientific paper
Jun 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998itns...45..921v&link_type=abstract
IEEE Trans. Nucl. Sci., Vol. 45, No. 3, p. 921 - 926
Computer Science
Performance
3
Filters: Space Instrumentation
Scientific paper
EPIC, the European Photon Imaging Cameras is an experiment based on cooled CCDs on board the ESA X-ray Multi Mirrors satellite due to be launched in 1999. Since CCD's are sensitive to radiation other than X-rays, namely optical and UV light, filters are necessary to prevent this radiation from reaching the detector sensitive area. Three types of filters were developed, to be used alternatively depending on target source. Here the authors report on the medium and thin filters developed by MOXTEK Inc. in Orem, Utah. The two filters, described here, have a 1600 Å polyimide substrate coated with 400 Å and 800 Å aluminium for the thin and medium filter, respectively. After manufacturing, the filters have been submitted to an intensive qualification and calibration programme at MOXTEK. Further calibrations, transmission measurements and performance stability, have been carried out or are in progress at one of the EPIC Institutes (Osservatorio Astronomico di Palermo).
Barbera Marco
Collura Alfonso
La Palombara Nicola
Musso Carlo
Serio Salvatore
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