Linac4 Low Energy Beam Measurements with Negative Hydrogen

Linac4, a 160 MeV normal-conducting H- linear accelerator, is the first step in the upgrade of the beam intensity available from the LHC proton injectors at CERN. The Linac4 Low Energy Beam Transport (LEBT) line from the pulsed 2 MHz RF driven ion source, to the 352 MHz RFQ has been built and instal...

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Detalles Bibliográficos
Autores principales: Scrivens, R, Bellodi, G, Crettiez, O, Dimov, V, Gerard, D, Granemann Souza, E, Guida, R, Hansen, J, Lallement, J B, Lettry, J, Lombardi, A, Midttun, O, Pasquino, C, Raich, U, Riffaud, B, Roncarolo, F, Valerio-Lizarraga, C A, Wallner, J, Yarmohammadi Satri, M, Zickler, T
Lenguaje:eng
Publicado: 2013
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1063/1.4847195
http://cds.cern.ch/record/1975938
Descripción
Sumario:Linac4, a 160 MeV normal-conducting H- linear accelerator, is the first step in the upgrade of the beam intensity available from the LHC proton injectors at CERN. The Linac4 Low Energy Beam Transport (LEBT) line from the pulsed 2 MHz RF driven ion source, to the 352 MHz RFQ has been built and installed at a test stand, and has been used to transport and match to the RFQ a pulsed 14 mA H- beam at 45 keV. A temporary slit-and-grid emittance measurement system has been put in place to characterize the beam delivered to the RFQ. In this paper a description of the LEBT and its beam diagnostics is given, and the results of beam emittance measurements and beam transmission measurements through the RFQ are compared with the expectation from simulations.

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