Linac4 low energy beam measurements with negative hydrogen ions

R. Scrivens, G. Bellodi, O. Crettiez, V. Dimov, D. Gerard, E. Granemann Souza, R. Guida, J. Hansen, J.-B. Lallement, J. Lettry, A. Lombardi, Ø. Midttun (+8 others)
2014 Review of Scientific Instruments  
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
more » ... e 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. (Presented XXXXX; received XXXXX; accepted XXXXX; published online XXXXX) Linac4, a 160 MeV normal-conducting Hlinear 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 Hbeam 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.
doi:10.1063/1.4847195 pmid:24593463 fatcat:vbrdnvtpejhmrbfb7ztkdqpuyy