Single MPPC (2 generations), the 1st generation (Vop ~ 70V) and 3rd generation (Vop~ 57V)
MPPC array (4×4= 16 channels)
Soldering for photosensor power supply/readout
Only soldering option is available for single MPPC. MPPC array is going with a dedicated PCB
The readout circuit will be provided
2. Scintillator
Two types of scintillator, each teams is with four scintillator bar. The size is important to estimate the cosmic muon rate
Consider the arrangement with wavelength shifting fiber (WLS)
Consider the light tightening
3. Wavelength shifting fiber
Need to cut (length should be estimated)
Need to polish
Need to consider how coupling with single/array MPPC (whether using an optical coupling or well-aligned laser cut). For MPPC, only one option is to use customized plate, but need to consider how to fix the position of wavelength into the plate. Remember the channel mapping for MPPC array
Light tightening of the WLS
Use UV glue
4. Signal proceessing options
Amplifier
8 channel NIM amplifier; x10 per stage of amplification. Also, There is an amplifier with shaper
For MPPC, there is a built-in amplifier in the PCB; no need of amplifier
Disciminator
Threshold ~ 20mV at minimum (with single MPPC, may need two-stage of amplifier)
Coincidence
NIM module
Oscilloscope option using the pattern trigger.
5. Data acquisition
Two oscilloscopes are available for two team. Team A can use 200MHz bandwidth oscilloscope while team B can use 100Mhz bandwidth. Four channels can be used
6. LED and driving methods
LED with different wavelength are available
To drive LED, specifically for pulsing ~ 100ns
Use Function generator
Use Analog Discovery
Use Arduino (UNO (~100ns) or DUE (~24ns))
Consider to coupling LED to MPPC: directly or via the optical fiber