WE1A —  Proton & Ion Accelerators & Applications/Technology   (28-Sep-16   08:30—10:30)
Chair: P.N. Ostroumov, ANL, Argonne, Illinois, USA
Paper Title Page
WE1A01 PIP-II Injector Test: Challenges and Status 641
 
  • P. Derwent, J.-P. Carneiro, J.P. Edelen, V.A. Lebedev, L.R. Prost, A. Saini, A.V. Shemyakin, J. Steimel
    Fermilab, Batavia, Illinois, USA
 
  The Proton Improvement Plan II (PIP-II) at Fermilab is a program of upgrades to the injection complex. At its core is the design and construction of a CW-compatible, pulsed H superconducting RF linac. To validate the concept of the front-end of such machine, a test accelerator known as PXIE is under construction. It includes a 10 mA DC, 30 keV H ion source, a 2 m-long Low Energy Beam Transport (LEBT), a 2.1 MeV CW RFQ, followed by a Medium Energy Beam Transport (MEBT) that feeds the first of 2 cryomodules increasing the beam energy to about 25 MeV, and a High Energy Beam Transport section (HEBT) that takes the beam to a dump. The ion source, LEBT, RFQ, and initial version of the MEBT have been built, installed, and commissioned. This report presents the overall status of the PXIE warm front end, including results of the beam commissioning through the installed components, and progress with SRF cryomodules and other systems.  
slides icon Slides WE1A01 [9.457 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A01  
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WE1A02 Assembly of XFEL Cryomodules: Lessons and Results 646
 
  • S. Berry, O. Napoly
    CEA/DSM/IRFU, France
 
  The industrialized string and module assembly of 103 European XFEL cryomodules has been performed at CEA-Saclay between September 2012 and the spring of 2016. The general features and achievements of this construction project will be reviewed, including lessons learned regarding organization, industrial transfer, quality control and assembly procedures. An overview of the cryomodule performance and RF test results will be presented.  
slides icon Slides WE1A02 [7.300 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A02  
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WE1A03 The Superconducting Radio-Frequency Linear Accelerator Components for the European Spallation Source: First Test Results 651
 
  • C. Darve, N. Elias, F. Schlander
    ESS, Lund, Sweden
  • C. Arcambal, P. Bosland, E. Cenni, G. Devanz
    CEA/IRFU, Gif-sur-Yvette, France
  • S. Bousson, P. Duthil, G. Olivier, G. Olry, D. Reynet
    IPN, Orsay, France
  • G. Costanza
    Lund University, Lund, Sweden
  • H. Li, R.J.M.Y. Ruber, R. Santiago Kern
    Uppsala University, Uppsala, Sweden
  • F. Peauger
    CEA/DSM/IRFU, France
 
  The European Spallation Source requires a pulsed Linac with an average beam power on the target of 5MW which is about five times higher than the most powerful spallation source in operation today. Over 97% of the acceleration occurs in superconducting cavities. ESS will be the first accelerator to employ double spoke cavities to accelerate beam. Accelerating gradients of 9MV/meter is required in the spoke section. The spoke section will be followed by 36 elliptical 704 MHz cavities with a geometrical beta of 0.67 and elliptical 704 MHz cavities with a geometrical beta of 0.86. Accelerating gradients of 20MV/m is required in the elliptical section. Initial gradient test results will be presented in which results exceed expected requirements.  
slides icon Slides WE1A03 [6.533 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A03  
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WE1A04 Performance Analysis of the European XFEL SRF Cavities, From Vertical Test to Operation in Modules 657
 
  • N. Walker, D. Reschke, J. Schaffran, L. Steder, M. Wenskat
    DESY, Hamburg, Germany
  • L. Monaco
    INFN/LASA, Segrate (MI), Italy
 
  More than 800 resonators have been fabricated, vertically qualified and operated in module tests before the accelerating module installation in the linac, which will be completed before the conference. An analysis of this experience, with correlation of the final cavity performances with production, preparation and assembly stages, is underway and at the time of the conference a summary of the activities will be available.  
slides icon Slides WE1A04 [3.436 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A04  
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WE1A05 HIE-ISOLDE SC Linac Progress and Commissioning in 2016 663
 
  • W. Venturini Delsolaro, E. Bravin, N. Delruelle, M. Elias, E. Fadakis, J.A. Ferreira Somoza, F. Formenti, M.A. Fraser, J. Gayde, N. Guillotin, Y. Kadi, G. Kautzmann, T. Koettig, Y. Leclercq, M. Martino, M. Mician, A. Miyazaki, E. Montesinos, V. Parma, J.A. Rodriguez, S. Sadovich, E. Siesling, D. Smekens, M. Therasse, L. Valdarno, D. Valuch, G. Vandoni, U. Wagner, P. Zhang
    CERN, Geneva, Switzerland
 
  The HIE-ISOLDE project (High Intensity and Energy ISOLDE) reached an important milestone in October 2015 when the first physics run was carried out with radioactive Zn beams at 4 MV/m. This is a first stage in the upgrade of the REX post-accelerator, whereby the energy of the radioactive ion beams was increased from 3 to 4.3 MeV per nucleon. The facility will ultimately be equipped with four high-beta cryomodules that will accelerate the beams up to 10 MeV per nucleon for the heaviest isotopes available at ISOLDE. The first cryomodule of the new linac, hosting five superconducting cavities and one solenoid, was commissioned in summer 2015, while the second one was being assembled in clean room. The new high-energy beam transfer lines were installed and commissioned in the same lapse of time. Commissioning with two cryomodules is planned for Summer 2016 to prepare for a physics run at 5.5 MeV/u in the second half of the year. This contribution will focus on the results of the commissioning and operation of the SC linac in 2015. Plans for the second phase of the HIE-ISOLDE project will be highlighted.  
slides icon Slides WE1A05 [4.194 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A05  
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WE1A06 Status of SPIRAL2 and RFQ Beam Commissioning 668
 
  • R. Ferdinand, P. Bertrand, M. Di Giacomo, H. Franberg, O. Kamalou, J.-M. Lagniel, G. Normand, A. Savalle, F. Varenne
    GANIL, Caen, France
  • J.-L. Biarrotte
    IPN, Orsay, France
  • D. Uriot
    CEA/DRF/IRFU, Gif-sur-Yvette, France
 
  The SPIRAL2 project beam commissioning is started and the superconducting linac installation is being finalized. In parallel with the installations, the first proton beam was extracted in 2014 and the expected beam performances were achieved from both light and heavy ion sources. The conditioning of the RFQ started in October 2015, and the beam commissioning soon after that. After having briefly recalled the project scope and parameters, the present situation of the RFQ beam commissioning is presented.  
slides icon Slides WE1A06 [19.488 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-WE1A06  
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