Abstract

As a part of the calorimetry system of Circular Electron Positron Collider (CEPC), the analog hadron calorimeter (AHCAL) uses scintillator tiles and silicon photomultipliers (SiPMs) as sensitive medium. The light yield uniformity of scintillators is essential for energy linearity and resolution of the calorimeter. This paper describes an automatic test platform for measuring the light yield of up to 144 scintillators at a time, with high credibility and accuracy.

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