Title :
Beam profile diagnostics for the Fermilab medium energy electron cooler
Author :
Warner, A. ; Kazakevich, G. ; Nagaitsev, S. ; Tassotto, G. ; Gai, W. ; Konecny, R.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
The Fermilab Recycler ring will employ an electron cooler to store and cool 8.9 GeV antiprotons. The cooler will be based on a Pelletron electrostatic accelerator working in an energy-recovery regime. Several techniques for determining the characteristics of the beam dynamics are being investigated. Beam profiles have been measured as a function of the beam line optics at the energy of 3.5 MeV in the current range of 10-4-1 A, with a pulse duration of 2 μs. The profiles were measured using optical transition radiation produced at the interface of a 250-μm aluminum foil and also from YAG crystal luminescence. In addition, beam profiles measured using multiwire detectors were investigated. These three diagnostics will be used together to determine the profile dynamics of the beam. In this paper we report the results so far obtained using these techniques.
Keywords :
beam handling techniques; electron beams; electrostatic accelerators; particle beam diagnostics; transition radiation; Fermilab Recycler ring; Pelletron electrostatic accelerator; YAG crystal luminescence; aluminum foil; antiprotons; beam dynamics; beam line optics; beam profile diagnostics; electron cooler; energy-recovery regime; multiwire detectors; optical transition radiation; Aluminum; Current measurement; Electron beams; Electron optics; Electrostatic measurements; Energy measurement; Luminescence; Optical beams; Optical pulses; Pulse measurements; Electron beam; electron cooler; multiwire monitor; optial transition; radiation;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2005.856768
