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Loss Factors and Gain

Loss Factors and Gain. Steve Malton University College London. Overview. Signal Estimates December data Gain measurements March data Bunch charge Summary. Signal Estimates. December Data. Position Cuts. Loss factor is not well defined at small offsets x-Channels Cut at 25 m m

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Loss Factors and Gain

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  1. Loss Factors and Gain Steve Malton University College London

  2. Overview • Signal Estimates • December data • Gain measurements • March data • Bunch charge • Summary 3rd mini-workshop on nano projects, KEK

  3. Signal Estimates 3rd mini-workshop on nano projects, KEK

  4. December Data 3rd mini-workshop on nano projects, KEK

  5. Position Cuts • Loss factor is not well defined at small offsets • x-Channels • Cut at 25 mm • y-Channels • Cut at 10 mm 3rd mini-workshop on nano projects, KEK

  6. Gain Measurements -76 dBm input 3rd mini-workshop on nano projects, KEK

  7. Gain Measurements (cont.) -36.3 dBm input -40.4 dBm input Expected gain from component specs: 38dB 3rd mini-workshop on nano projects, KEK

  8. March Data 3rd mini-workshop on nano projects, KEK

  9. Bunch Charge • So far, have assumed same charge in each bunch - 0.75 * 1010 • Include charge data in readout - some issues? 3rd mini-workshop on nano projects, KEK

  10. Summary • Theoretical gain: 38 dB • Measured 43 - 47 dB • Theoretical loss factor: • Z. Li: 1.37 * 1010 J mm-2 C-2 • A. Liapine: 3.1 * 109 . • Measured values: 4 - 7 * 109 . 3rd mini-workshop on nano projects, KEK

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