Proton Calorimetry/Experimental Runs/2022/MayLED: Difference between revisions

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Revision as of 11:55, 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 Full Scale Range (pC) Graph
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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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