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TUPCH098 |
Antiproton Momentum Distributions as a Measure of Electron Cooling Force at the Fermilab Recycler
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1241 |
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- D.R. Broemmelsiek, S. Nagaitsev
Fermilab, Batavia, Illinois
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The Fermilab Recycler is a fixed 8GeV kinetic energy storage ring located in the Fermilab Main Injector tunnel near the ceiling. Electron cooling of high-energy antiprotons has recently been demonstrated at the Recycler. Antiproton beam Schottky signals were used to measure the antiproton momentum distribution at equilibrium between a calibrated broadband diffusion source and electron cooling. The large Recycler momentum aperture, the dependence of the electron cooling force as a function of the antiproton momentum deviation and the calibrated diffusion source combine to give a unique spectral measurement of the antiproton momentum beam distribution.
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