on zoom at
https://cern.zoom.us/j/67720767411?pwd=UFpGdGpjTnRJbW84cHlNRnNObnQvZz09
-- 2023 performance in LHC -- test beam -- emulsion scan
-- 2023 run -- test beam
-- event vertex tagging in emulsion -- Hadron calorimeter calibration
-- neutrino tagging -- others