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Scaling Beamline for Variable p-ref Settings in Muon Beam Production

This document discusses the feasibility of scaling the beamline to produce muon beams with matched momentum and energy settings for the MICE experiment. It outlines the necessary parameters and conditions to ensure beam profiles remain consistent across different p-ref configurations. The approach leverages linear optics to modify magnetic field strengths in the spectrometer solenoid while maintaining stable beam characteristics. Initial results indicate that scaling can yield reasonable beam profiles despite inherent imperfections, thus providing a foundation for exploring diverse momentum settings.

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Scaling Beamline for Variable p-ref Settings in Muon Beam Production

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  1. Can we scale the beamline for different p-ref settings? … ie might it be a reliable way to furnish same εn, different momentum beams for MICE?

  2. Background: We aim eventually* to cover…. (*or for starters…!) * we have now a good candidate for. (AUG05)

  3. Background: • Table of required (Rrms,R'rms) in spectrometer solenoid for producing various matched p-ref, εn muon beams. (R means x or y) • (In all cases the spectrometer solenoid is taken at 4Tesla.)

  4. Approach With linear optics with can just scale the fields with momentum and get the same beam profile & beamsizes, R. With materials in (etc) does it become practical? Also what about R' @ end.

  5. Q: want to see x,y stay~same. x',y' go slightly up. A: see x,y stay ~ same. x',y' do go slightly up. Turtle Results Scaled down fields to 140MeV/c and selecting lower energy pions etc. AUG05 (200MeV/c 6pi aim):

  6. Q: want to see x,y stay~same. x',y' slightly lwr. A: see x,y stay ~ same. x',y' stay ~ same. Turtle Results Scaled up to fields to 240MeV/c, selecting higher momentum etc. AUG05 (200MeV/c 6pi aim):

  7. Initial conclusions - Whilst not perfect, scaled beamlines do seem to produce beam @ end which is probably reasonable (start) for different momentum settings.

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