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| TUM2I04 |
Ionization Cooling
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68 |
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- R. P. Johnson
Muons, Inc, Batavia
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Funding: Supported by DOE SBIR/STTR grants DE-FG02-04ER84016, 04ER86191, 05ER86252, and 05ER886253
All three components of a particle’s momentum are reduced as a particle passes through and ionizes some energy absorbing material. If the longitudinal momentum is regenerated by RF cavities, the angular divergence of the particle is reduced. This is the basic concept of ionization cooling. What can be done for a muon beam with this simple idea is almost amazing, especially considering that the muon lifetime is only 2.2 μs in its rest frame. In this lecture we will discuss the evolution and present status of this idea, where we are now ready to design muon colliders, neutrino factories, and intense muon beams with very effective cooling in all six phase space dimensions. The discussion will include the heating effects and absorber Z-dependence of multiple scattering, numerical simulation programs, the accuracy of scattering models, emittance exchange, helical cooling channels, parametric-resonance ionization cooling, reverse emittance exchange, and the ionization cooling demonstration experiments, MICE and MANX.
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Slides
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| TUM2I05 |
MICE: The International Muon Ionization Cooling Experiment
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73 |
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- A. P. Blondel, J. S. Graulich
DPNC, Genève
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An international experiment to demonstrate muon ionization cooling is scheduled for beam at Rutherford Appleton Laboratory (RAL) in 2008. The experiment comprises one cell of the neutrino factory cooling channel, along with upstream and downstream detectors to identify individual muons and measure their initial and final 6D emittance to a precision of 0.1%. Magnetic design of the beam line and cooling channel are complete and portions are under construction. The experiment will be described, including cooling channel hardware designs, fabrication status, and running plans. Phase 1 of the experiment will prepare the beam line and provide detector systems, including time-of-flight, Cherenkov, scintillating-fiber trackers and their spectrometer solenoids, and an electromagnetic calorimeter. The Phase 2 system will add the cooling channel components, including liquid-hydrogen absorbers embedded in superconducting Focus Coil solenoids, 201-MHz normalconducting RF cavities, and their surrounding Coupling Coil solenoids. The MICE Collaboration goal is to complete the experiment by 2010.
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Slides
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| TUM2I06 |
Cooling Scheme for a Muon Collider
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77 |
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- R. B. Palmer, J. S. Berg, R. C. Fernow, J. C. Gallardo, H. G. Kirk
BNL, Upton, Long Island, New York
- Y. Alexahin, D. V. Neuffer
Fermilab, Batavia, Illinois
- S. A. Kahn
Muons, Inc, Batavia
- D. J. Summers
UMiss, University, Mississippi
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Abstract text to be submitted by the author
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Slides
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