6 citations · 45 across the 21 of their papers we have counts for
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Comparison of the current LHC Collimators and the SLAC Phase 2 Collimator Impedances
Hugo Day, Fritz Caspers, Elias Metral +2
One of the key sources of transverse impedance in the LHC has been the secondary graphite collimators that sit close to the beam at all energies. This limits the stable bunch inten…
Coaxial Wire Measurements of Ferrite Kicker Magnets
Hugo Day, Michael Barnes, Fritz Caspers +4
Fast kicker magnets are used to inject beam into and eject beam out of the CERN accelerator rings. These kickers are generally transmission line type magnets with a rectangular sha…
Simulations of Coaxial Wire Measurements of the Impedance of Asymmetric Structures
Hugo Day, Fritz Caspers, Elias Metral +1
Coaxial wire measurements have provided a simple and effective way to measure the beam coupling impedance of accelerator structures for a number of years. It has been known how to…
Higher Order Modes in Coupled Cavities of the Flash Module ACC39
I. R. R. Shinton, R. M. Jones, Z. Li +1
We analyse the higher order modes (HOM's) in the 3.9GHz bunch shaping cavities installed in the FLASH facility at DESY. A suite of finite element computer codes (including HFSS and…
Comparative Wakefield Analysis of a First Prototype of a DDS Structure for CLIC Main Linac
A. D'Elia, R. M. Jones, V. F. Khan +2
A Damped Detuned Structure (DDS) for CLIC main linac has been proposed as an alternative to the present baseline design which is based on heavy damping. A first prototype, CLIC_DDS…
Study of Beam Diagnostics with Trapped Modes in Third Harmonic Superconducting Cavities at FLASH
P. Zhang, N. Baboi, R. M. Jones +1
Off-axis beams passing through an accelerating cavity excite dipole modes among other higher order modes (HOMs). These modes have linear dependence on the transverse beam offset fr…