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Enhancing LHC Beam Performance: Objectives and Strategies for High-Intensity Proton Beams

This document outlines the key objectives and priorities for recovering from the big bang event and improving the LHC beam characteristics. It discusses critical aspects such as aperture and alignment, RF controls, and methods for impedance reduction. Key challenges include managing high-intensity proton beams, specifically investigating the feasibility of handling multiple batches with nominal spacing. The need for RF power and beam loading considerations are also evaluated. Additionally, we propose defining and measuring observables to validate simulation hypotheses and monitor electron cloud effects.

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Enhancing LHC Beam Performance: Objectives and Strategies for High-Intensity Proton Beams

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  1. Objectives and Priorities • Recover from big-bang • Aperture and alignment • RF controls • Impedance reduction

  2. LHC-Beam • One batch 4 1010/bunch at 450GeV with right emittances (3.5 mm). • Can we handle 3 (4) batches with the nominal distance.

  3. High intensity proton beams • High intensity CT in PPM mode. • Beam loading (FF) • RF power needed • how much can we get through transition.

  4. LHC • Define and measure observables to test simulation hypothesis. • Electron cloud monitor (stripes)

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