Proton Calorimetry/Experimental Runs/2022/MayLED

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|4 || D27, CMOS off, 12.5pC ||  
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|4 || No material light level test sheet 2 ||  
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|5 || D109, CMOS on, 350pC ||  
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|5 || No material light level test sheet 3 ||  
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|6 || D109, CMOS on, 12.5pC ||  
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|6 || No material light level test sheet 4 ||  
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|7 || D109, CMOS off, 350pC ||  
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|7 || No material light level test sheet 5 ||  
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|8 || D109, CMOS off, 12.5pC ||  
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|8 || No material light level test sheet 6 ||  
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|9 || D109, CMOS on, 12.5pC. Detector housing grounded using ground pin of FPGA. Grounded using optical breadboard inside detector. ||  
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|9 || No material light level test sheet 7 ||  
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|10 || D109, CMOS on, 12.5pC. Previous grounding seemed ineffective. Now grounded by attaching clip to metal on outside face of detector enclosure. ||  
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|10 || No material light level test sheet 8 ||  
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|11 || D109, CMOS off, 12.5pC, grounded. ||  
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|11 || No material light level test sheet 9 ||  
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|12 || D27, CMOS off, 12.5pC, grounded. ||  
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|12 || No material 90° dark noise test ||  
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|13 || D27, CMOS off, 12.5pC ||  
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|13 || No material 90° cross-talk test ||  
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|14 || D27, CMOS off, 12.5pC, grounded, LED. LED pulse of 1MHz, 6V height and 500ns width. Injected into single scintillator sheet coupled to photodiode 16. ||  
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|14 || No material 90° light level test sheet 1 ||
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Revision as of 11:38, 16 May 2022

Optical isolation tests using LED fibre in D27.

Aim: Investigate optimal material to use to optically isolate unpainted sheets and whether single layers of material provide sufficient isolation.

Notes

  • DDC232 settings: 170us integration time and measured 10000 samples per run.
  • Signal Generator settings: 0 ps delay, 500 kHz, 300 ns width, 5 ns leading edge and trailing edge, 6V high, 0V low.
  • Fibres used: 25 and 29 (25 used for single injection tests).
  • Sheets used: 84, 82, 81, 80, 79, 78, 77, 76, 75
  • Materials tested: none, white paper (0.01 mm thick), black card (0.02 mm thick), mylar foil (0.006 mm thick). Materials cut into 10 cm x 10 cm layers and placed in-between sheets.
Run Description Graph
1 No material dark noise test, 12.5pC

Run001.png

2 No material cross-talk test, 12.5pC

Run002.png

3 No material light level test sheet 1, 350pC

Run003.png

4 No material light level test sheet 2

Run004.png

5 No material light level test sheet 3

Run005.png

6 No material light level test sheet 4

Run006.png

7 No material light level test sheet 5

Run007.png

8 No material light level test sheet 6

Run008.png

9 No material light level test sheet 7

Run009.png

10 No material light level test sheet 8

Run010.png

11 No material light level test sheet 9

Run011.png

12 No material 90° dark noise test

Run012.png

13 No material 90° cross-talk test

Run013.png

14 No material 90° light level test sheet 1

Run014.png

15 No material 90° light level test sheet 1

Run014.png

16 No material 90° light level test sheet 1

Run014.png

17 No material 90° light level test sheet 1

Run014.png

18 No material 90° light level test sheet 1

Run014.png

19 No material 90° light level test sheet 1

Run014.png

20 No material 90° light level test sheet 1

Run014.png

21 No material 90° light level test sheet 1

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22 No material 90° light level test sheet 1

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23 No material 90° light level test sheet 1

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14 No material 90° light level test sheet 1

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24 No material 90° light level test sheet 1

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25 No material 90° light level test sheet 1

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26 No material 90° light level test sheet 1

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27 No material 90° light level test sheet 1

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28 No material 90° light level test sheet 1

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29 No material 90° light level test sheet 1

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30 No material 90° light level test sheet 1

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38 No material 90° light level test sheet 1

Run014.png

39 No material 90° light level test sheet 1

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40 No material 90° light level test sheet 1

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41 No material 90° light level test sheet 1

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