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@inbook{doi:10.7566/JPSCP.8.025007,

title = {Performance Evaluation of Readout Electronics Board for the COMET Straw-Tube Tracker},
booktitle = {Proceedings of the 2nd International Symposium on Science at J-PARC — Unlocking the Mysteries of Life, Matter and the Universe —},
chapter = {},
pages = {},
doi = {10.7566/JPSCP.8.025007},
URL = {https://journals.jps.jp/doi/abs/10.7566/JPSCP.8.025007},
eprint = {https://journals.jps.jp/doi/pdf/10.7566/JPSCP.8.025007},
    abstract = { We report results of performance evaluation of a front-end readout electronics board named “ROESTI” for the COMET straw tube tracker. The ROESTI performs preamplification, pulse-shaping, discrimination and waveform digitization. All the processes are controlled by an FPGA chip on the board. To achieve four orders of magnitudes better sensitivity than the current limit of the \(\mu \)-e conversion search, we require momentum resolution of electron reconstruction better than 200 keV/c at 105 MeV/c in high rate environment. The ROESTI board has a function of waveform digitization by implementing the DRS4 chips on it. Consequently, the waveforms coming from pile-up events can be separated into each waveform. We have conducted performance evaluation of the ROESTI in terms of noise level, gain, linearity, timing resolution and data transfer speed. We report research and development status of the next version of the board to be implemented in the COMET experiment. }
}