SiPM 1 Introduction The KETEK SiPM Evaluation Kit allows an easy operation and evaluation of any KETEK SiPM. It can be used for a wide range of applications which require e.g. single photon counting or measurements with scintilla- tors. Two of the Evaluation Kits can be mounted face to face for coincidence measurements.
3 Single Photon Measurements 3.1 Dark Count Spectrum • At the oscilloscope, set the trigger to the amplified SiPM signal at 0.5 pe amplitude (1 pe is the smallest occurring pulse height, corresponding to a photoelectron pe). • Note: This measurement has to be done under dark conditions without illuminating the SiPM.
For PM66 (6.0 x 6.0 mm² active area) LYSO with 5.0 x 5.0 x 5.0 mm³ 4.1 Energy Spectrum • In analogy to section 3.1, at the oscilloscope the trigger has to be set to the SiPM signal above the base- line and the pulse area as a measure for the energy is histogrammed. •...
5.2 SiPM Bias Source As an addon to both Evaluation Kits, a SiPM Bias Source is available (cf. fig. 5). It offers an adjustable bias voltage from 20 to 40 V with either positive or negative polarity. Current limit can be set to either 2 or 20 mA.
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