JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{adams:hb2023-thbp24, author = {D.J. Adams and H.V. Cavanagh and I.S.K. Gardner and B.S. Kyle and H. Rafique and C.M. Warsop and R.E. Williamson}, % author = {D.J. Adams and H.V. Cavanagh and I.S.K. Gardner and B.S. Kyle and H. Rafique and C.M. Warsop and others}, % author = {D.J. Adams and others}, title = {{RCS and Accumulator Rings Designs for ISIS II}}, % booktitle = {Proc. HB'23}, booktitle = {Proc. 68th Adv. Beam Dyn. Workshop High-Intensity High-Brightness Hadron Beams (HB'23)}, eventdate = {2023-10-09/2023-10-13}, pages = {519--522}, paper = {THBP24}, language = {english}, keywords = {injection, space-charge, proton, emittance, lattice}, venue = {Geneva, Switzerland}, series = {ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams}, number = {68}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {04}, year = {2024}, issn = {2673-5571}, isbn = {978-3-95450-253-0}, doi = {10.18429/JACoW-HB2023-THBP24}, url = {https://jacow.org/hb2023/papers/thbp24.pdf}, abstract = {{ISIS is the spallation neutron source at the Rutherford Appleton Laboratory in the UK, which provides 0.2 MW of beam power via a 50 Hz, 800 MeV proton RCS. Detailed studies are now underway to find the optimal configuration for a next generation, short-pulsed neutron source that will define a major ISIS upgrade, with construction beginning ~2031. Determining the optimal specification for such a facility is the subject of an ongoing study involving neutron users, target and instrument experts. The accelerator designs being considered for the MW beam powers required, include proposals exploiting FFA rings as well as conventional accumulator and RCS rings. This paper summarises work on physics designs for the conventional rings. Details of lattice designs, injection and extraction systems, correction systems as well as detailed 3D PIC simulations used to ensure 0.1\% losses and low foil hits are presented. Designs for a 0.4 to 1.2 GeV RCS and 1.2 GeV AR are outlined. Work on the next stages of the study are also summarised to benchmark and minimise predicted losses, and thus maximise the high intensity limit of designs.}}, }