2019年5月16日
A Laser-based Time Calibration System for the MEG II Timing Counter
- 記述言語
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- 機関テクニカルレポート，技術報告書，プレプリント等
We have developed a new laser-based time calibration system for the MEG II<br />
timing counter dedicated to timing measurement of positrons. The detector<br />
requires precise timing alignment between $\sim\,$500 scintillation counters.<br />
In this study, we present the calibration system which can directly measure the<br />
time offset of each counter relative to the laser-synchronized pulse. We<br />
thoroughly tested all the optical components and the uncertainty of this method<br />
is estimated to be 24 ps. In 2017, we installed the full system into the MEG II<br />
environment and performed a commissioning run. This method shows excellent<br />
stability and consistency with another method. The proposed system provides a<br />
precise timing alignment for SiPM-based timing detectors. It also has potential<br />
in areas such as TOF-PET.
timing counter dedicated to timing measurement of positrons. The detector<br />
requires precise timing alignment between $\sim\,$500 scintillation counters.<br />
In this study, we present the calibration system which can directly measure the<br />
time offset of each counter relative to the laser-synchronized pulse. We<br />
thoroughly tested all the optical components and the uncertainty of this method<br />
is estimated to be 24 ps. In 2017, we installed the full system into the MEG II<br />
environment and performed a commissioning run. This method shows excellent<br />
stability and consistency with another method. The proposed system provides a<br />
precise timing alignment for SiPM-based timing detectors. It also has potential<br />
in areas such as TOF-PET.
- ID情報
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- arXiv ID : arXiv:1905.06270