Fig. 9From: 16-channel SiPM high-frequency readout with time-over-threshold discrimination for ultrafast time-of-flight applicationsChannel raw energy value spectrum for a 2\(\times\)2Â \(\times\)3Â mm\(^{3}\) LYSO:Ce,Ca crystal read out via one Broadcom NUV-MT SiPM channel of a 4Â \(\times\)Â 4 SiPM array connected to the 16-channel HF readout board at an overvoltage of 6Â V and 9Â V. Raw energy values were digitized via the TOFPET2 ASIC operated in qdc modeBack to article page