Fig. 8

CTR of individual channels of a detector block consisting of a \(4\times 4\) Broadcom NUV-MT SiPM arrays one-to-one coupled to a \(4\times 4\) LYSO:Ce,Ca crystal matrix at a bias voltage of 41.5 V and a discriminator threshold of \(\mathsf {vth\_t1}\)=  50. a DC readout at default TOFPET2 configuration with R\(_\textsf{in}\) = 30 \(\Omega\). b DC readout with R\(_\textsf{in}\) = 11 \(\Omega\). c Upscaled HF readout including TOT discrimination via a TLV3801 with a threshold of 90 mV