Keyword: antiproton
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MOPP037 Status of Beam Instrumentation for FAIR HEBT diagnostics, detector, proton, electron 194
 
  • M. Schwickert, P. Boutachkov, T. Hoffmann, H. Reeg, A. Reiter, B. Walasek-Höhne
    GSI, Darmstadt, Germany
 
  At present the Facility for Antiproton and Ion Research (FAIR) is under construction at the GSI site. As part of the FAIR project the beamlines of the High Energy Beam Transport (HEBT) section interconnect the synchrotrons, storage rings and experimental caves. The large range of beam energies (MeV to GeV) and beam intensities up to 1012 particles per pulse for uranium, or up to 2·1013 particles per pulse for protons, demand in many cases for purpose-built beam diagnostic devices. Presently, the main diagnostic components are being manufactured by international in-kind partners in close collaboration with GSI. This contribution presents an overview of the beam instrumentation layout of the FAIR HEBT and summa-rizes the present status of developments for HEBT beam diagnostics. We focus on the status of the foreseen beam current transformers, particle detectors, scintillating screens and profile grids.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-MOPP037  
About • paper received ※ 04 September 2019       paper accepted ※ 07 September 2019       issue date ※ 10 November 2019  
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WEPP040 Optimization of Antiproton Capture for Antihydrogen Creation in the ALPHA Experiment proton, simulation, experiment, electron 633
 
  • S.S. Fabbri, W. Bertsche
    UMAN, Manchester, United Kingdom
 
  At the ALPHA Experiment at CERN, thin foils of material are used to slow down and trap antiprotons in a Penning trap, where they can be used for antihydrogen creation and measurements. Historically, over 99% of antiprotons are lost during the capture process as a result of the 5.3 MeV initial kinetic energy of the beam delivered by the Antiproton Decelerator. This places a limit early on in the achievable number of antihydrogen. ELENA is a new storage ring coming online which will lower this initial kinetic energy of the beam to 100 keV, requiring experiments to update their infrastructure. We present Monte Carlo and particle tracking simulation results for the optimization of the new degrading foil material, thickness, and location in the ALPHA catching Penning trap. From these results, we expect an upper capture efficiency of roughly 50 %. We further propose techniques for manipulating, detecting and extracting on the anticipated larger-numbered antiproton plasmas. These methods and associated hardware developments will allow performing antiproton experiments with significantly higher efficiency in ALPHA and other similar antiproton-based experiments.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-WEPP040  
About • paper received ※ 04 September 2019       paper accepted ※ 11 September 2019       issue date ※ 10 November 2019  
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