TY - CPAPER
AU - Sanjari, M.S.
AU - Chen, X.
AU - Hülsmann, P.
AU - Litvinov, Yu.A.
AU - Nolden, F.
AU - Piotrowski, J.
AU - Steck, M.
AU - Stöhlker, T.
TI - Conceptual Design of Elliptical Cavity Beam Position Monitors for Heavy Ion Storage Rings
J2 - Proc. of IBIC2014
AB - Over 50 years in the history of accelerator physics, RF cavities have been used as beam position and intensity monitors. Their structure has been extensively discussed across numerous papers reporting their successful operation. The application of RF cavities as pick-ups has recently been extended to include radioactive ion beam (RIB) facilities and heavy ion storage rings. These pick-ups allow for very sensitive, accurate, and quick characterisation of ion beams and turn out to be indispensable tools in nuclear as well as atomic physics experiments. A notable example is the resonant pick-up in the ESR at GSI Darmstadt (*) where single ion detection was achieved for lifetime measurements of radioactive nuclides (**). A similar cavity pick-up was installed in CSRe in IMP Lanzhou (***). In this work, we describe a novel conceptual approach that utilizes RF cavities with an elliptical geometry. While requiring a high precision determination of the position and intensity of particle beams, it has to cope with design restriction at heavy-ion storage rings such as large beam pipe apertures. The latter become inevitable at facilities aiming at storing large-emittance beams as, e.g., planned in the future Collector Ring (CR) of the FAIR project at GSI Darmstadt. Simulation results are accompanied by results achieved from bench-top measurements on model cavities.
PB - JACoW
CY - Geneva, Switzerland
SP - 634
EP - 636
KW - cavity
KW - storage-ring
KW - pick-up
KW - ion
KW - impedance
DA - 2014/10
PY - 2014
SN - 978-3-95450-141-0
UR - http://jacow.org/IBIC2014/papers/wepd03.pdf
ER -