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Beam instrumentation for 50nsec ion injection “Design and feasibility for LS2”

Beam instrumentation for 50nsec ion injection “Design and feasibility for LS2”. Outline: BTVs BLMs BPMs Fast kicker synchronisation Conclusions. Existing BTVs in LSS1. Camera: radiation-hard “ Vidicon ” Mainly for observation (beam is there) Electronics and cables:

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Beam instrumentation for 50nsec ion injection “Design and feasibility for LS2”

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  1. Beam instrumentation for 50nsec ion injection“Design and feasibility for LS2” • Outline: • BTVs • BLMs • BPMs • Fast kicker synchronisation • Conclusions Lars K. Jensen BE/BI

  2. Existing BTVs in LSS1 • Camera: radiation-hard “Vidicon” • Mainly for observation (beam is there) • Electronics and cables: • Consolidated during LS1 • Review screens • Radiation issue remains Lars K. Jensen BE/BI

  3. Position of Ion Dump #1 • 2m available for new dump (with BTV) • MDV, BPV and BLM no-longer to be used after LS2? ~2m available Lars K. Jensen BE/BI

  4. Position of Ion Dump #2 • Space available in sector 12160 (upstream of Schottky monitors) • Do we still need/use the BPSH/BPSV after LS2? • Viable option in terms of optics etc ? • Expect it to be fixed (no movement required) Lars K. Jensen BE/BI

  5. BLMs in LSS1 • All normal quadrupoles • Dedicated BLMs: Additional BLMs to be specified as required for Ion injection and beam-dump Lars K. Jensen BE/BI

  6. Injection of Batch 11 BPMs Position • ‘shoe-box’ orbit pick-ups in LSS1 • BPM on every quadrupole (BPV.121?) • ‘Bad’ BPD pickups replaced this shutdown • Minimum detectable intensity levels: • Single bunch ~2E9 charges • Batch ~1E8 charges • New electronics (under development/test) will provide: • Trajectory: 50 first turns (for each of up 13 programmable gates) • Orbit: averaged values at 1KHz (for 1 selected gate) for cycles up to 100s • LHC-type pick-ups • BPMs in position 513, 515 and 519 • Bunch by bunch programmable (25nsec slot) for many turns • Used to diagnose injection kicker fine timing Intensity Lars K. Jensen BE/BI

  7. Fast kicker synchronisation • Present MKP (protons) diagnostics uses analogue signal from: • BCTFI.100302 (TT10) (+ scintillator on BTV) • BCTFS.11640 (first turn) • Propose to use the same for ions Lars K. Jensen BE/BI

  8. Conclusions • Quick overview of BI equipment in LSS1 • BTV to be integrated on new dump • Cost estimate ~70kCHF • Best place to be identified • BLMs to be specified and placed for new injection septum and dump • New BPM electronics expected to bring new functionalities for injection oscillation and covering long cycles Lars K. Jensen BE/BI

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