Computer Science – Performance
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jkas...37..185s&link_type=abstract
Journal of the Korean Astronomical Society, vol. 37, no. 4, pp. 185-191
Computer Science
Performance
1
Astronomical Instrumentation: Ccd Camera, Solar Observation
Scientific paper
We have been developing a solar observing system based on a fast CCD camera 1M30P made by the DALSA company. Here we examine and present the characteristics and performance of the camera. For this we have analyzed a number of images of a flat wall illuminated by a constant light source. As a result we found that in the default operating mode 1) the mean bias level is 49 ADU/pix, 2) the mean dark current is about 8 ADU/s/pix, 3) the readout noise is 1.3 ADU, and 4) the gain is about 42 electrons/ADU. The CCD detector is found to have a linearity with a deviation smaller than 6 %, and a uniform sensitivity better than 1%. These parameters will be used as basic inputs in the analysis of data to be taken by the camera.
Chae Jongchul
Park Ki-Woong
Seo Young-Min
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