Evaluation method and result of 4K×4K CCD sensor for LAMOST project

Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) is a 4 meter Schmidt system developing in China, with the aim of probing into the structure of the universe. It needs 32 high performance CCD cameras working in the spectral range of 370-900 nm. 4 K times 4 K CCD203_82 chip made by e2v technology is selected for the camera in LAMOST. The evaluation of E2V technology 4 K times 4 K CCD203_82 was carried out to check whether the chip can satisfy the performance requirements of LAMOST project. In this paper, parameter test methods and test facility are introduced first. The evaluation results are also presented, including dark current, full well capacity, charge transfer efficiency, gain, readout noise and linearity. The results show that the performances of CCD203_82 based on low noise CCD controller are excellent for night astronomical observation and achieve the specification of LAMOST project.