Lattice beam dynamics study at low b for SARAF/EURISOL driver 40/60 MEV 4 MA D&P superconducting linac

J. Rodnizki, B. Bazak, D. Berkovits, G. Feinberg, S. Halfon, A. Pernick, A. Shor, Y. Yanay

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

In this study we examine a lattice for the SARAF superconducting (SC) linac at the low-β range. The SC Half Wave Resonator cavities in the first cryostat are optimized for a geometric β0=0.09 and hence the β=0.0567 ions coming from the RFQ are mismatched. We developed a semi adiabatic tuning method for the low-β portion of the SC linac. The guidelines were derived from the study of two linac lattices that were considered for the SARAF 40 MeV proton and deuteron linac, extended up to 60 MeV for the low energy part of the EURISOL driver. Simulations were run using the TRACK and GPT codes. The lattices were tested for energy gain along the linac, emittance growth and acceptance. Further, error runs in GPT using a tail emphasis technique to enhance statistics by focusing on the bunch tail allowed us to examine compatibility of the lattices with hands-on maintenance requirements. Our study may be relevant for other linacs that begin with SC cavities immediately following the RFQ, such as SPIRAL2, and perhaps also for IFMIF which is designed to start with similar β-mismatch at the low-β range.

Original languageAmerican English
Pages246-253
Number of pages8
StatePublished - 2008
Externally publishedYes
Event42nd ICFA Advanced Beam Dynamics Workshop on High-Intensity, High-Brightness Hadron Beams, HB 2008 - Nashville, TN, United States
Duration: 25 Aug 200829 Aug 2008

Conference

Conference42nd ICFA Advanced Beam Dynamics Workshop on High-Intensity, High-Brightness Hadron Beams, HB 2008
Country/TerritoryUnited States
CityNashville, TN
Period25/08/0829/08/08

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