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{| style="text-align:center" border="1" cellspacing="0" cellpadding="5"
{| style="text-align:center" border="1" cellspacing="0" cellpadding="5"
|+ Summary of SiPM Properties measured at room temperature at recommended bias voltages
|+ ''Summary of SiPM Properties measured at room temperature at recommended bias voltages''
|- style="background:#F1F2FF"
|- style="background:#F1F2FF"
!rowspan="2"| Device
!rowspan="2"| Device
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|}
Since the SiPM performance is sensitive to the bias voltage applied and the ambient temperature, a measurement SiPM properties as functions of bias voltage (V<sub>b</sub>) and temperature (T) was performed on the SSPM-06~. (By this point, the SSPM-06~ was judged to a better sensor for the tagger microscope, owing to higher sensitivity in the blue-green range and better active area match to the fiber cross-section. Aside from gains in efficiency and dynamic range of the resulting readout, higher photon detection implies higher time resolution because of the scintillation decay time of 2.7ns in the fiber.)
The range of interest for these operating variables were:
- V<sub>b</sub>: from 0.5V below to 0.5V above the operating range: 19V-21V
- T: 0-above room temp., in practice 3°C (to avoid growing snow) to 25°C
However, it was found that the peaks were very indistinct by at bias voltages below 20V and temperatures above 20°C. This