Proton Calorimetry/Experimental Runs/2022/MayLED

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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

  • Rev. B 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.

Data saved in /unix/pbt/data/ucl/20220503

Run Description Full Scale Range (pC) Graph
1 No material dark noise test 12.5

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2 No material cross-talk test 12.5

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3 No material light level test sheet 1 12.5

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4 No material light level test sheet 2 12.5

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5 No material light level test sheet 3 12.5

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6 No material light level test sheet 4 12.5

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7 No material light level test sheet 5 12.5

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8 No material light level test sheet 6 12.5

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9 No material light level test sheet 7 12.5

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10 No material light level test sheet 8 12.5

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11 No material light level test sheet 9 12.5

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12 No material 90° dark noise test 12.5

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13 No material 90° cross-talk test 12.5

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14 No material 90° light level test sheet 1 12.5

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15 No material 90° light level test sheet 2 12.5

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16 No material 90° light level test sheet 3 12.5

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17 No material 90° light level test sheet 4 12.5

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18 No material 90° light level test sheet 5 12.5

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19 No material 90° light level test sheet 6 12.5

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20 No material 90° light level test sheet 7 12.5

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21 No material 90° light level test sheet 8 12.5

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22 No material 90° light level test sheet 9 12.5

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23 White paper dark noise test 12.5

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24 White paper cross-talk measurement 50

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25 White paper light level test sheet 1 50

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26 White paper light level test sheet 2 50

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27 White paper light level test sheet 3 50

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28 White paper light level test sheet 4 50

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29 White paper light level test sheet 5 50

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30 White paper light level test sheet 6 50

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31 White paper light level test sheet 7 50

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32 White paper light level test sheet 8 50

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33 White paper light level test sheet 9 50

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34 White paper 90° dark noise test 12.5

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35 No material 90° light level test sheet 1 12.5

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36 No material 90° light level test sheet 1 12.5

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37 No material 90° light level test sheet 1 12.5

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38 No material 90° light level test sheet 1 12.5

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39 No material 90° light level test sheet 1 12.5

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40 No material 90° light level test sheet 1 12.5

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41 No material 90° light level test sheet 1 12.5

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42 No material 90° light level test sheet 1 12.5

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43 No material 90° light level test sheet 1 12.5

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44 No material 90° light level test sheet 1 12.5

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45 No material 90° light level test sheet 1 12.5

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46 No material 90° light level test sheet 1 12.5

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47 No material 90° light level test sheet 1 12.5

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48 No material 90° light level test sheet 1 12.5

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49 No material 90° light level test sheet 1 12.5

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50 No material 90° light level test sheet 1 12.5

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51 No material 90° light level test sheet 1 12.5

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52 No material 90° light level test sheet 1 12.5

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53 No material 90° light level test sheet 1 12.5

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54 No material 90° light level test sheet 1 12.5

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55 No material 90° light level test sheet 1 12.5

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56 No material 90° light level test sheet 1 12.5

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57 No material 90° light level test sheet 1 12.5

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58 No material 90° light level test sheet 1 12.5

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59 No material 90° light level test sheet 1 12.5

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60 No material 90° light level test sheet 1 12.5

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61 No material 90° light level test sheet 1 12.5

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62 No material 90° light level test sheet 1 12.5

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63 No material 90° light level test sheet 1 12.5

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64 No material 90° light level test sheet 1 12.5

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65 No material 90° light level test sheet 1 12.5

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66 No material 90° light level test sheet 1 12.5

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67 No material 90° light level test sheet 1 12.5

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68 No material 90° light level test sheet 1 12.5

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69 No material 90° light level test sheet 1 12.5

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70 No material 90° light level test sheet 1 12.5

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71 No material 90° light level test sheet 1 12.5

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72 No material 90° light level test sheet 1 12.5

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73 No material 90° light level test sheet 1 12.5

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74 No material 90° light level test sheet 1 12.5

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75 No material 90° light level test sheet 1 12.5

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76 No material 90° light level test sheet 1 12.5

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77 No material 90° light level test sheet 1 12.5

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78 No material 90° light level test sheet 1 12.5

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79 No material 90° light level test sheet 1 12.5

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80 No material 90° light level test sheet 1 12.5

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81 No material 90° light level test sheet 1 12.5

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82 No material 90° light level test sheet 1 12.5

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83 No material 90° light level test sheet 1 12.5

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84 No material 90° light level test sheet 1 12.5

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85 No material 90° light level test sheet 1 12.5

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86 No material 90° light level test sheet 1 12.5

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87 No material 90° light level test sheet 1 12.5

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88 No material 90° light level test sheet 1 12.5

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89 No material 90° light level test sheet 1 12.5

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90 No material 90° light level test sheet 1 12.5

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91 No material 90° light level test sheet 1 12.5

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92 No material 90° light level test sheet 1 12.5

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93 No material 90° light level test sheet 1 12.5

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94 No material 90° light level test sheet 1 12.5

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95 No material 90° light level test sheet 1 12.5

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96 No material 90° light level test sheet 1 12.5

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