Let's Build A Particle Accelerator
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Let's Build A Particle Accelerator

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I talk briefly about some of the things that you must consider when you want to build a particle accelerator.

I talk briefly about some of the things that you must consider when you want to build a particle accelerator.

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    Let's Build A Particle Accelerator Let's Build A Particle Accelerator Presentation Transcript

    • Let’s Build A ParticleAcceleratorA nerd’s-eye view
    • What kind?LinacElectron - photon?Proton-Antiproton
    • How about a...Alternating gradient synchrotron? - Sure!(you can keep your cyclotrons)
    • Magnets - F = q(E + v× B)Dipole - bend the beamQuadrupole - focus the beam (h or v)Sextupole - correct the focusOctupole - correct the chromaticity
    • BeamPhase space - stabilityDispersionTune, chromaticityA real-world application for irrational numbers
    • TriviaCheck out this logo:
    • VacuumBetter than the moon, much betterVacuum pumps Roughing Turbo Ion Diffusion Very low temps capture gasses
    • CoolingLN2 - cheapish: nice beerLHe - expensive: med/nice champaign meh, we’ll make our own a big refrigerator (hex, cooling cycle)Nb-Ti likes about 4K (close to abs zero)
    • AccelerationEverything is very close to cMainly adding energySpace chargeRamp - synchronize magnet strength w/ beammomentum/energy
    • Size/SuperconductingOpposition: machine size vs. max beam energyElectricity: you need lots. CURRENT! ~4K ampsConductor ~1cm squareNb-Ti
    • Machine SafetyQuench (real bad) beam hits pipe & adds energy heats superconducting magnet magnet goes sub-superconductingSafety system warm magnet uniformly vent coolants (expanding gas) dump current
    • People SafetyInterlocksKeys - controlled entryRadiationElectricity