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TY - CONF AU - Stancari, G. AU - Burov, A.V. AU - Lebedev, V.A. AU - Nagaitsev, S. AU - Prebys, E. AU - Valishev, A. ED - Akers, Evelyn (Jefferson Lab), Satogata, Todd Satogata (Jefferson Lab), Schaa, Volker RW Schaa (GSI) TI - Electron Lenses and Cooling for the Fermilab Integrable Optics Test Accelerator J2 - Proc. of COOL2015, Newport News, VA, USA, September 28 - October 2, 2015 C1 - Newport News, VA, USA T2 - International Workshop on Beam Cooling and Related Topics T3 - 10 LA - english AB - Recently, the study of integrable Hamiltonian systems has led to nonlinear accelerator lattices with one or two transverse invariants and wide stable tune spreads. These lattices may drastically improve the performance of high-intensity machines, providing Landau damping to protect the beam from instabilities, while preserving dynamic aperture. The Integrable Optics Test Accelerator (IOTA) is being built at Fermilab to study these concepts with 150-MeV pencil electron beams (single-particle dynamics) and 2.5-MeV protons (dynamics with self fields). One way to obtain a nonlinear integrable lattice is by using the fields generated by a magnetically confined electron beam (electron lens) overlapping with the circulating beam. The required parameters are similar to the ones of existing devices. In addition, the electron lens will be used in cooling mode to control the brightness of the proton beam and to measure transverse profiles through recombination. More generally, it is of great interest to investigate whether nonlinear integrable optics allows electron coolers to exceed limitations set by both coherent or incoherent instabilities excited by space charge. PB - JACoW CP - Geneva, Switzerland SP - 32 EP - 35 KW - electron KW - optics KW - proton KW - space-charge KW - lattice DA - 2016/11 PY - 2016 SN - 978-3-95450-174-8 DO - 10.18429/JACoW-COOL2015-MOPF03 UR - https://spms.fnal.gov/pls/cool15/papers/mopf03.pdf ER -