WHAT IS MOSAIC CCD CAMERA? (Under Construction)

History of Cameras

Mosaic CCD Camera I

The Mosaic CCD Camera I was built in 1991. The 2 x 8 array of CCDs was developed to observe at Kiso's Schmidt Telescope. 3 x 5 shots (exposures) are needed to complete one connected image. This camera have been used many times.

Mosaic CCD Camera II

The Mosaic CCD Camera II was built in 1994.

This camera has 4 x 7 CCDs at first, This camera was designed to complete one image with a set of 2 x 2 shots, to be used at any telescopes with flat focal plain.

The brown piece at right is liquid N2 tank to cool CCDs and at left is the refregerator control box.

This is the newest picture of MCCD2. The central front black piece now is the LN2 tank and the chips were added up to 5 x 8.

We observed at Cassegrain focus of 40' (Swope) telescope at the Las Campanas Observatory on 1994, 1995. and prime focus of 4.2m William Hershell Telescope at the Roque de los Muchachos Observatory.

Bibliography

MCCD I
Sekiguchi, M., Iwashita, H., Doi, M., Kashikawa, N., 
& Okamura, S. 1992, PASP, 104, 744

MCCD II
Kashikawa, N., Sekiguchi, M., Yagi, M., Yasuda, N., 
Okamura, S., Shimasaku, K. & Doi, M. 1995, in IAU symp. 167, 
New Developments in Array Technology and Applications, 
in press 

Kashikawa, N., Shimasaku, K., Yagi, M., Yasuda, N., 
Doi, M., Okamura, S., and Sekiguchi, M., 1995
ApJL, 452, L99

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Last Revision: July 19, 1996. Still under construction...

asuzuki@astron.s.u-tokyo.ac.jp yagi@optik.mtk.nao.ac.jp