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→SiPM Measurements
== SiPM Measurements ==
== SiPM Measurements ==
[[Image:PhotonPeaks_SSPM05.png|frame|Illustration of discrete peaks seen in the collected SiPM charge frequency histogram. The first peak shows the number of events in which no photons were detected, the next shows one and so forth. Note the even spacing of the peaks, showing the linearity of the device.]]
[[Image:PhotonPeaks_SSPM05.png|thumb|420px|Illustration of discrete peaks seen in the collected SiPM charge frequency histogram. The first peak shows the number of events in which no photons were detected, the next shows one and so forth. Note the even spacing of the peaks, showing the linearity of the device.]]
The first remarkable feature of the the SiPM statistics is the presence of discrete peaks in the histogram of charge collected in the SiPM(proportional to the SiPM signal (Volts) integral (Vs) by 1/Gain<sub>trans-impedance</sub> (A/V). This allows us to determine the charge collected per activated pixel (per photon) and therefore gives the gain of the device. This is the "self-calibration" referred to above.
The first remarkable feature of the the SiPM statistics is the presence of discrete peaks in the histogram of charge collected in the SiPM(proportional to the SiPM signal (Volts) integral (Vs) by 1/Gain<sub>trans-impedance</sub> (A/V). This allows us to determine the charge collected per activated pixel (per photon) and therefore gives the gain of the device. This is the "self-calibration" referred to above.