Review of Scientific Instruments · 2015 · 37 citations · 5 references
Natural SciencesNuclear EngineeringPhysicsNuclear PhysicsParticle PhysicsPlasma PhysicsAccelerator PhysicsCollider PhysicsElectron Beam PhysicsHigh-temperature PlasmasPlasma SourcesEmittanceFront-end DesignHadron AcceleratorsHeavy-ion AcceleratorsHigh-intensity Beam PhysicsIon Source DesignIon Source PhysicsIon Sources
CERN's 160 MeV H(-) linear accelerator (Linac4) is a key constituent of the injector chain upgrade of the Large Hadron Collider that is being installed and commissioned. A cesiated surface ion source prototype is being tested and has delivered a beam intensity of 45 mA within an emittance of 0.3 π ⋅ mm ⋅ mrad. The optimum ratio of the co-extracted electron- to ion-current is below 1 and the best production efficiency, defined as the ratio of the beam current to the 2 MHz RF-power transmitted to the plasma, reached 1.1 mA/kW. The H(-) source prototype and the first tests of the new ion source optics, electron-dump, and front end developed to minimize the beam emittance are presented. A temperature regulated magnetron H(-) source developed by the Brookhaven National Laboratory was built at CERN. The first tests of the magnetron operated at 0.8 Hz repetition rate are described.
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Status and operation of the Linac4 ion source prototypes
J. Lettry, Davide Aguglia, Patrik Andersson et al. · Review of Scientific Instruments · 2013 · 38 citations
CERN’s Linac4 H− sources: Status and operational results
J. Lettry, Davide Aguglia, J. Alessi et al. · AIP conference proceedings · 2015 · 33 citations · Full text
Determination of discharge parameters via OES at the Linac4 H− ion source
S. Briefi, David Fink, S. Mattei et al. · Review of Scientific Instruments · 2015 · 14 citations · Full text
RF plasma modeling of the Linac4 H− ion source
S. Mattei, M. Ohta, A. Hatayama et al. · AIP conference proceedings · 2013 · 13 citations