Electron cloud effects on an intense ion beam in a four solenoid lattice

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The Solenoid Transport Experiment (STX) at LBNL successfully demonstrated the transport of a space-charge dominated ion beam in a two-solenoid lattice. Initial experiments showed a strong dependence of electron cloud effects on solenoid field strength. A current-reducing aperture, two solenoids and in-bore diagnostics were added to the two-solenoid lattice in order to study electron cloud effects more closely. Experiments were conducted with a 10 {micro}s, singly charged potassium ion bunch at an ion energy of 0.3 MeV and currents of 26 mA and 45 mA. A qualitative comparison of experimental and calculated results are presented, including a comparison of the ... continued below

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Department of Nuclear Engineering, University of California at Berkeley,; 4155 Etcheverry Hall, MC 1730, Berkeley, CA 94720, USA.; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA-94720, USA.; University of Maryland, College Park, MD 20742-3511, USA.; Lawrence Liveremore National Laboratory, Livermore, California 94550, USA.; Voss Scientific, Albuquerque, NM 87108, USA. et al. July 1, 2007.

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The Solenoid Transport Experiment (STX) at LBNL successfully demonstrated the transport of a space-charge dominated ion beam in a two-solenoid lattice. Initial experiments showed a strong dependence of electron cloud effects on solenoid field strength. A current-reducing aperture, two solenoids and in-bore diagnostics were added to the two-solenoid lattice in order to study electron cloud effects more closely. Experiments were conducted with a 10 {micro}s, singly charged potassium ion bunch at an ion energy of 0.3 MeV and currents of 26 mA and 45 mA. A qualitative comparison of experimental and calculated results are presented, including a comparison of the effects of manipulating electrons on the beam dynamics, quantifying beam-induced gas desorption, ionization, and electron effects.

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  • Journal Name: Physical Review Special Topics: Accelerators and Beams

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  • Report No.: LBNL-264E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 928954
  • Archival Resource Key: ark:/67531/metadc899984

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  • July 1, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 28, 2016, 7:10 p.m.

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Department of Nuclear Engineering, University of California at Berkeley,; 4155 Etcheverry Hall, MC 1730, Berkeley, CA 94720, USA.; Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA-94720, USA.; University of Maryland, College Park, MD 20742-3511, USA.; Lawrence Liveremore National Laboratory, Livermore, California 94550, USA.; Voss Scientific, Albuquerque, NM 87108, USA. et al. Electron cloud effects on an intense ion beam in a four solenoid lattice, article, July 1, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc899984/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.