Author:
Duan Y.,Jiang J.,Li J.,Li L.,Li S.,Liu D.,Liu J.,Liu Y.,Qi B.,Qian R.,Shen Z.,Shi Y.,Wang X.,Wang Z.,Yang H.,Yu B.,Zhang Y.
Abstract
Abstract
Hadron calorimeter (HCAL) is an essential sub-detector of
the baseline detector system for Circular Electron Positron Collider
(CEPC). We plan to build an Analog Hadron CALorimeter (AHCAL)
prototype based on the Particle Flow Algorithm (PFA). The AHCAL of
CEPC uses steel as the absorber and scintillator tiles read out by
Silicon Photo-Multipliers (SiPMs) as the sensitive medium. The
energy linearity and resolution of the calorimeter depend on the
light yield uniformity of the sensitive medium. It is essential to
qualify the entire detector production in order to select
scintillator tiles with the uniformity of light yield within
10%. An automated batch test platform has been designed with 144
channels and an automated 3D servo motor. The paper summarizes the
tests performed on more than 15000 scintillator tiles, and the SiPMs
work at 59 V (overvoltage: 5 V). The measured light yield,
corrected for the set-up response non-uniformity, is around
12.9 p.e. About 91.6% of scintillators (14219 pieces) are
qualified within 10% of the light yield window.
Subject
Mathematical Physics,Instrumentation
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献