  Large area LaBr3:Ce detectors with a SiPM array readout have been developed
for the FAMU experiment at RAL. The aim was to have a good energy resolution
for low energy X-rays detection (around 100 keV) and good timing properties of
the signal pulse. Sixteen 1" detectors and twelve 1/2" detectors have been
presently installed in the FAMU experiment and are taking data since March
2023, at RIKEN RAL Port 1.
