Setting up the HGCROC board

This page explains how the HGCROC proto-board v2 should be connected with the KCU-105 and its additional inputs

Follow the instructions as indicated in the picture above and connect the respective cables for ethernet, power and HV for the individual HGCROCs. For using external triggers and synchronization connect corresponding SMA inputs, pay attenion to only have the signal be provided with 1.8V (step down from classical 5V NIM signal needed).

ORNL test stand setup

In the darkbox 2 PMT are arranged in a vertical coincidence stack.

• top: green labels - should be operated at 1771 V, ~330 muA

• bottom: pink labels - should be operated at 1940V, ~300 muA

Use waveform generator as level converter with external trigger BC entering in the back. Settings of waveform generator should be:

• Trigger setup: external

• Burst setup: set level correctly to 1.8V

The ORNL setup is setup with 2 HGCROC proto-boards with 2 FMC cables as extensions of the on board FMC connectors (160 pin version -HDR-169468-02) to which in principle a total of 4x 8 layers of the 8M scintillators layers can be connected.