Speaker
W. M. Sharp
(Lawrence Livermore National Laboratory)
Description
W. M. Sharp, A. Friedman, D. P. Grote, R. H. Cohen, S. M. Lund
Lawrence Livermore National Laboratory
Livermore, California, 94550, USA
J.-L. Vay, W. L. Waldron, A. Yuen
Lawrence Berkeley National Laboratory
Berkeley, California, 94720, USA
NDCX-II is a newly completed accelerator facility at LBNL, built to study ion-heated warm dense matter and aspects of ion-driven targets for inertial-fusion energy. The baseline design calls for using twelve induction cells to accelerate 40 nC of Li+ ions to 1.2 MeV. During commissioning, though, we plan to extend the source lifetime by extracting less total charge. For operational flexibility, the option of using a helium plasma source is also being investigated. Over time, we expect that NDCX-II will be upgraded to substantially higher energies, necessitating the use of heavier ions to keep a suitable deposition range in targets. Each of these options requires development of an alternate acceleration schedule and the associated transverse focusing. The schedules here are first worked out with a fast-running 1-D particle-in-cell code ASP, then 2-D and 3-D Warp simulations are used to verify the 1-D results and to design transverse focusing.
*Work performed under the auspices of US Department of Energy by LLNL under Contract DE-AC52-07NA27344 and by LBNL under Contract DE-AC03-76SF00098.
Primary author
W. M. Sharp
(Lawrence Livermore National Laboratory)
