Author: Bustinduy, I.
Paper Title Page
MOODS6 Beam Dynamics Simulations on the ESS Bilbao RFQ 100
 
  • D. de Cos, I. Bustinduy, O. Gonzalez, J.L. Munoz, A. Velez
    ESS Bilbao, Bilbao, Spain
  • F.J. Bermejo
    Bilbao, Faculty of Science and Technology, Bilbao, Spain
  • V. Etxebarria, J. Portilla
    University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
  • J. Feuchtwanger
    ESS-Bilbao, Zamudio, Spain
  • S. Jolly, P. Savage
    Imperial College of Science and Technology, Department of Physics, London, United Kingdom
  • A.P. Letchford
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
 
  Funding: European Spallation Source - Bilbao
The Bilbao Accelerator RFQ is aimed to accelerate a 75 mA proton beam from 75 keV to 3 MeV, while keeping the beam both transversely and longitudinally focused, and presenting a minimum emittance growth. We report on the current status of the project, mainly focusing on the Beam Dynamics aspects of the design. Several particle simulations are carried out with RFQSIM, GPT and TRACK codes, in order to study the particle transmission of the RFQ under several circumstances, such as different current levels, vane geometry changes due to thermal stress, and different input beam characteristics obtained by changing the LEBT operation settings.
 
slides icon Slides MOODS6 [3.264 MB]  
 
TUP042 RF Measurements and Numerical Simulations for the Model of the Bilbao Linac Double Spoke Cavity 886
 
  • J.L. Munoz, I. Bustinduy, N. Garmendia, V. Toyos
    ESS Bilbao, Derio, Spain
  • E. Asua
    UPV-EHU, Leioa, Spain
  • F.J. Bermejo
    Bilbao, Faculty of Science and Technology, Bilbao, Spain
  • V. Etxebarria, J. Portilla
    University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
  • J. Feuchtwanger
    ESS-Bilbao, Zamudio, Spain
  • J. Lucas
    Elytt Energy, Madrid, Spain
 
  A model of a double spoke resonant cavity (operating frequency 352.2 MHz, βg=0.39) has been designed and fabricated in aluminium. The RF characteristics of the cavity have been measured in our laboratory. Experimental measurements have involved the determination of the main cavity parameters, and the characterization of the accelerating electric field profile along the cavity axis by means of a fully automated bead-pullmethod. Additionally, numerical simulations using COMSOL code have been used to fully characterize the cavity. Electromagnetic numerical simulations of the cavity have been also performed to determine its main figures of merit and to identify the most suitable position for opening a port to install a power coupler. In this paper we report the cavity cold model description, the experimental setup and corresponding techniques, together with the numerical methods. The obtained results are described and discussed in detail.  
 
WEP010 Design of the Bilbao Accelerator Low Energy Extraction Lines 1519
 
  • Z. Izaola, I. Rodríguez
    ESS-Bilbao, Zamudio, Spain
  • E. Abad, I. Bustinduy, R. Martinez, F. Sordo Balbin, D. de Cos
    ESS Bilbao, Bilbao, Spain
  • D.J. Adams, S.J.S. Jago
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
  • F.J. Bermejo
    Bilbao, Faculty of Science and Technology, Bilbao, Spain
  • V. Etxebarria, J. Portilla
    University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
 
  Funding: European Spallation Source - Bilbao
The ESS-Bilbao linac will accelerate H+ and H− beams up to 50 MeV, which need to be transported to three laboratories, where different types of experiments will be conducted. This paper reports on the preliminary design of the transfer line, which is mainly performed based on beam dynamics simulations.
 
 
WEP011 Low Energy Beam Transport Developments for the Bilbao Accelerator 1522
 
  • I. Bustinduy, D. de Cos
    ESS Bilbao, Bilbao, Spain
  • F.J. Bermejo
    Bilbao, Faculty of Science and Technology, Bilbao, Spain
  • V. Etxebarria, J. Portilla
    University of the Basque Country, Faculty of Science and Technology, Bilbao, Spain
  • J. Feuchtwanger, Z. Izaola, J.L. Munoz, I. Rodríguez
    ESS-Bilbao, Zamudio, Spain
 
  Funding: European Spallation Source - Bilbao
In this work we present a future upgrade of the ESS-Bilbao multi-source Low Energy Transport System (LEBT). It consists of a set of solenoids and steering dipoles used to match the characteristics of both ion source beams i.e., the Electron Cyclotron Resonance (ECR) H+/D+ source and the H− Penning source, to the input specifications of the RFQ. Different configurations of the geometry and magnetic fields are studied in order to minimize the emittance growth along the LEBT, while providing the beam specifications required by the RFQ.