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Beam-Loss Monitors

Beam-Loss Monitors. Alan Fisher APE Meeting 2010-09-21. Cherenkov BLMs for PEP-II. Argonne BLMs. Argonne borrowed a PEP BLM, then made their own version for APS Later, another version for LCLS Surrounds the beampipe with a Y-shaped fused-silica Cherenkov radiator

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Beam-Loss Monitors

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  1. Beam-Loss Monitors Alan Fisher APE Meeting 2010-09-21

  2. Cherenkov BLMs for PEP-II

  3. Argonne BLMs • Argonne borrowed a PEP BLM, then made their own version for APS • Later, another version for LCLS • Surrounds the beampipe with a Y-shaped fused-silica Cherenkov radiator • Ran out of money after building 5 • Put on every 8th girder • Put recycled PEP-II BLMs on all 33 girders • Now they’ve completed BLMs for all girders • Being installed this week

  4. Sketch of Argonne BLM on Girder

  5. 0.06 0.02 0.10 0.08 0.04 0.60 0.20 0.40 Nonuniform Response Simulations performed with RIBO Monte Carlo code RC = 0.96 RC = 0.97 RC = 0.95

  6. Block the Stem with Lead

  7. Lead-Brick Test at 13.6 GeV

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