20 February 2018 A 100 Mfps image sensor for biological applications
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Abstract
Two ultrahigh-speed CCD image sensors with different characteristics were fabricated for applications to advanced scientific measurement apparatuses. The sensors are BSI MCG (Backside-illuminated Multi-Collection-Gate) image sensors with multiple collection gates around the center of the front side of each pixel, placed like petals of a flower. One has five collection gates and one drain gate at the center, which can capture consecutive five frames at 100 Mfps with the pixel count of about 600 kpixels (512 x 576 x 2 pixels). In-pixel signal accumulation is possible for repetitive image capture of reproducible events. The target application is FLIM. The other is equipped with four collection gates each connected to an in-situ CCD memory with 305 elements, which enables capture of 1,220 (4 x 305) consecutive images at 50 Mfps. The CCD memory is folded and looped with the first element connected to the last element, which also makes possible the in-pixel signal accumulation. The sensor is a small test sensor with 32 x 32 pixels. The target applications are imaging TOF MS, pulse neutron tomography and dynamic PSP. The paper also briefly explains an expression of the temporal resolution of silicon image sensors theoretically derived by the authors in 2017. It is shown that the image sensor designed based on the theoretical analysis achieves imaging of consecutive frames at the frame interval of 50 ps.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. Goji Etoh, T. Goji Etoh, Kazuhiro Shimonomura, Kazuhiro Shimonomura, Anh Quang Nguyen, Anh Quang Nguyen, Kosei Takehara, Kosei Takehara, Yoshinari Kamakura, Yoshinari Kamakura, Paul Goetschalckx, Paul Goetschalckx, Luc Haspeslagh, Luc Haspeslagh, Piet De Moor, Piet De Moor, Vu Truong Son Dao, Vu Truong Son Dao, Hoang Dung Nguyen, Hoang Dung Nguyen, Naoki Hayashi, Naoki Hayashi, Yo Mitsui, Yo Mitsui, Hideo Inumaru, Hideo Inumaru, } "A 100 Mfps image sensor for biological applications", Proc. SPIE 10505, High-Speed Biomedical Imaging and Spectroscopy III: Toward Big Data Instrumentation and Management, 1050506 (20 February 2018); doi: 10.1117/12.2288861; https://doi.org/10.1117/12.2288861
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