Computer Science – Performance
Scientific paper
Jun 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jkas...34..111l&link_type=abstract
Journal of the Korean Astronomical Society, vol. 34, no. 2, pp. 111-117
Computer Science
Performance
Sun: Flare, Instruments: Ccd
Scientific paper
Recently, we have set up a new digital CCD camera system, MicroMax YHS-1300 manufactured by Roper Scientific for H-alpha observation by Solar Flare Telescope at Bohyunsan Optical Astronomical Observatory. It has a 12 bit dynamic range, a pixel number of 1300x1030, a thermoelectric cooler, and an electric shutter. Its readout speed is about 3 frames per second and the dark current is about 0.05 e-/p/s at -10 C degree. We have made a system performance test by confirming the system linearity, system gain, and system noise that its specification requires. We have also developed a data acquisition software which connects a digital camera controller to a PC and acquires H-alpha images via Microsoft C++ 6.0 under Windows 98. Comparisons of high quality H-alpha images of AR 9169 and AR 9283 obtained from SOFT with the corresponding images from Learmonth Solar Observatory in Australia confirm that our H-alpha digital observational system is performed properly. Finally, we present a set of H-alpha images taken from a two ribbon flare occurred in AR 9283.
Jang Be-Ho
Kim Kap-Sung
Lee Chang Won
Moon Yong Jae
Park Young-Deuk
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