From CERN https://twitter.com/CERN on Twitter: Today’s # features the neutron time-of-flight facility at #, also known as n_TOF. Here we see the n_TOF Total Absorption Calorimeter, a detector for neutron capture gamma-rays, composed of 40 barium fluoride crystals. Learn more: https://home.cern/science/experiments/n_tof https://twitter.com/CERN/status/1646196487012098053/photo/1 https://chirp.cooleysekula.net/attachment/51ccc7ceedc09bfcca296327a15f3696b95fec75d90c9dd0bf6c84a94702acfc/view