Author: Winklehner, D.
Paper Title Page
TUB02 Updated Physics Design of the DAEδALUS and IsoDAR Coupled Cyclotrons for High Intensity H2+ Beam Production 137
 
  • D. Winklehner
    MIT, Cambridge, Massachusetts, USA
 
  The Decay-At-rest Experiment for deltaCP violation At a Laboratory for Underground Science (DAEδALUS)* and the Isotope Decay-At-Rest experiment (IsoDAR)** are proposed experiments to search for CP violation in the neutrino sector, and 'sterile' neutrinos, respectively. In order to be decisive within 5 years, the neutrino flux and, consequently, the driver beam current (produced by chained cyclotrons) must be high. H2+ was chosen as primary beam ion in order to reduce the electrical current and thus space charge. This has the added advantage of allowing for stripping extraction at the exit of the DAEδALUS Superconducting Ring Cyclotron (DSRC). The primary beam current is higher than current cyclotrons have demonstrated which has led to a substantial R&D effort of our collaboration in the last years. I will present the results of this research, including tests of prototypes and highly realistic beam simulations***, which led to the latest physics-based design. The presented results suggest that it is feasible, albeit challenging, to accelerate 5 mA of H2+ to 60 MeV/amu in a compact cyclotron and boost it to 800 MeV/amu in the DSRC with clean extraction in both cases.
*The DAEδALUS collaboration, arXiv:1307.2949, 2013
**A. Bungau, et al., Phys. Rev. Lett., Bd. 109, Nr. 14, p. 141802, 2012
***J. Yang, et al., NIM-A 704 (11), 84-91 , 2013
 
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WEA04
Update on OPAL  
 
  • A. Adelmann, A. Gsell, V. Rizzoglio
    PSI, Villigen PSI, Switzerland
  • Y. Ineichen
    IBM Research - Zurich, Rueschlikon, Switzerland
  • C.J. Metzger-Kraus
    HZB, Berlin, Germany
  • X. Pang, S.J. Russell
    LANL, Los Alamos, New Mexico, USA
  • C.T. Rogers, S.L. Sheehy
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom
  • S.L. Sheehy
    JAI, Oxford, United Kingdom
  • C. Wang, J.J. Yang
    CIAE, Beijing, People's Republic of China
  • D. Winklehner
    MIT, Cambridge, Massachusetts, USA
 
  OPAL (Object Oriented Parallel Accelerator Library) is a open source tool for charged-particle optics calculations in accelerator structures and beam lines including 3D space charge, short range wake-fields, 1D coherent synchrotron radiation and particle matter interaction. OPAL admits simulations of any scale, from the laptop to the largest HPC clusters. OPAL has a fast FFT based direct solver and an iterative solver with AMR, able to handle efficiently exact boundary conditions on complex geometries. We will discuss new capabilities such as Graphical Processing Units (GPUs) support, turning your workstation into a super computer, time dependent fields necessary for modelling FFAGs, synchrotrons and synchro-cyclotrons and the creation of matched distributions with linear space charge.  
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