CEPC calorimetry TDR meeting, 14:00 - 16:30
Minutes: Yong Liu (IHEP)
- Crystal ECAL geometry
- Endcap geometry updates: Weizheng Song (IHEP)
- Jiyuan Chen: currently working on the geometry validation
- AHCAL geometry implementation in CEPCSW
- Barrel: Hongbin Diao (USTC)
- Endcap: Jiyuan Chen (SJTU)
- Digitisation: Dejing Du (IHEP)
- Beam-induced backgrounds
- Fangyi: pending on HCAL endcap geometry (and also muon detector geometry)
- Shengsen: muon detector geometry ready, minor bugs to be corrected
- Weizheng: uniform or Poisson distributions of hit time stamps for incident particles of beam-induced backgrounds
- ScECAL and AHCAL talk: Yunlong Zhang (USTC)
- Dynamic range estimates for given SiPM types
- Results of BGO cubic calorimeter with APD readout
- Crystal ECAL mechanics: Shaojing Hou (IHEP)
- 0.2mm thick carbon-fiber casing of 5x5 crystal bars (10x10x400 mm^3) -> 0.02 mm deformation; deformation for casing of 1x5 crystal bars ~1mm
- Need specific BGO parameters for more detailed simulation of BGO cracking/breaking
- BGO mechanics parameters: data from SIC, Yong already sent to Shaojing
- Critical deformation (in mm or um) when BGO starts to crack or break: Yong will ask SIC colleagues for quantitative inputs
- AHCAL readout unit number estimate: Boxiang Yu
- 40x40mm tile: 3.38M in barrel, 1.55M in endcaps
- AHCAL endcap mechanics: Junsong Zhang
- 4 sectors in the endcap (90-degree modules)
- AHCAL barrel mechanics: Yatian Pei
- Cooling pipes in absorber plates and thermal simulation
- Interconnection of barrel modules
