Proton Calorimetry/Experimental Runs/2021/Mar4

Daisy chain tests of second DDC232 prototype in D109

Aim: Debug "mirroring" issues when daisy-chaining more than 2 DDC232s boards.

Notes

• DDC232 boards have a numerical identifier:
  • Board 1: S1337-16BR photodiodes
  • Board 2: 1k ohm resistors
  • Board 3: S1227-16BQ photodiodes
  • Board 4: S12915-16R photodiodes
• In the runs listed, boards are listed right to left, with the right-most board connected to the FPGA.
• In all runs, an integration time of 170us and full-scale range of 350pC is used.

Data saved in unix/pbt/data/ucl/20201112/

Run	Board Configuration	Description
1	3, 1	board rotation and sweep covering of photodiodes
2	3, 4
3	3, 2
4
5
6
7
8
9
10
11
12