TY  - CONF
AU  - Lagrange, J.-B.
AU  - Adams, D.J.
AU  - Brown, C.
AU  - Cavanagh, H.V.
AU  - Gardner, I.S.K.
AU  - Griffin-Hicks, P.T.
AU  - Jones, B.
AU  - Kelliher, D.J.
AU  - Letchford, A.P.
AU  - Machida, S.
AU  - Pasternak, J.
AU  - Pine, B.G.
AU  - Pozimski, J.K.
AU  - Prior, C.R.
AU  - Rees, G.H.
AU  - Rogers, C.T.
AU  - Thomason, J.W.G.
AU  - Warsop, C.M.
AU  - Williamson, R.E.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Progress on Design Studies for the ISIS II Upgrade
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - ISIS, the spallation neutron source at the Rutherford Appleton Laboratory in the UK, uses a 50 Hz, 800 MeV proton RCS to provide a beam power of 0.2 MW, delivered in 0.4 us long pulses. Detailed studies are now under way for a major upgrade. Accelerator designs using FFAs, conventional accumulator and synchrotron rings are being considered for the required MW beam power. This paper summarises the scope of the different research incorporating results from recent target studies and user consultations. Preliminary results for Fixed Field Alternating gradient (FFA) rings and conventional rings located in the existing ISIS synchrotron hall are presented.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2075
EP  - 2078
KW  - lattice
KW  - proton
KW  - synchrotron
KW  - injection
KW  - neutron
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUPTS068
UR  - http://jacow.org/ipac2019/papers/tupts068.pdf
ER  - 

TY  - CONF
AU  - Martin, L.
AU  - Kelliher, D.J.
AU  - Sheehy, S.L.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Can a Paul Ion Trap Be Used to Investigate Nonlinear Quasi-Integrable Optics?
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Here we describe the design of an experimental setup using the IBEX Paul trap to test nonlinear quasi-integrable optics, an accelerator lattice design to create stable high intensity beams. In 2010 Danilov and Nagaitsev found a realisable nonlinear potential which can create integrable optics in an accelerator when embedded in a linear lattice that provides round beams. This concept will be tested in the IOTA ring at Fermilab. It is important to further test this concept over a wide parameter range, preferably in a simplified experimental setup such as IBEX. The IBEX Paul trap is capable of replicating the transverse dynamics of a high intensity accelerator without dispersion or chromaticity.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3251
EP  - 3254
KW  - octupole
KW  - lattice
KW  - optics
KW  - experiment
KW  - quadrupole
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPTS056
UR  - http://jacow.org/ipac2019/papers/wepts056.pdf
ER  - 

TY  - CONF
AU  - Martin, L.
AU  - Kelliher, D.J.
AU  - Sheehy, S.L.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Recent Studies of the Resonances at a Cell Tune of 0.25 Using the Ibex Paul Trap
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - We use the IBEX linear Paul trap to study the resonance at a cell tune of \frac{1}{4} with both equal and unequal transverse tunes, at a range on intensities. We compare this experimental result to simulation using the PIC code Warp. We find that the experimental result differs from the simulation, which may be explained by the ion loss in the IBEX experiment, which more closely replicates a real accelerator. Knowledge of the tune corresponding to greatest beam loss is important for the design of future high intensity machines.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3255
EP  - 3258
KW  - resonance
KW  - experiment
KW  - emittance
KW  - simulation
KW  - space-charge
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPTS057
UR  - http://jacow.org/ipac2019/papers/wepts057.pdf
ER  -