mechanical design

[gkasprow]

I finished the mechanical design of the scintillator assembly and AFE The setup consists of 4 PCBs:

• main AFE board with CPU, connector, LDOs, an amplifier for 1 SIPM
• auxillary AFE board with the amplifier for 1 SIPM. It can be placed on the same or opposite side of the scintillator.
  • two SIPM board with detector and temperature sensor.

The detector board is screwed to the scintillator and is connected to the amplifier board using short FFC jumper. AFE boards are connected using thin 3M ribbon cable in an aluminum shield. With both SIPM mounted on the same side, they are connected with a short piece of 3M ribbon cable. With SIPMs mounted on the opposite side of the scintillator, the long 3M ribbon cable is used to connect the two.

Below is shown the configuration with 2 SIPMs mounted on the same side. Second SIPM assembly is not shown.

the SIPM board is placed directly on the 3D printed shape.

It is then covered with 3D printed cover.

Entire AE is enclosed in 3D printed or machined end-cap

And finally, AFE is attached to the aluminium extruded profile

[gkasprow]

Here is mechanical 3D step file Endcap_ASSY.zip