Paper |
Title |
Page |
MOPPC080 |
Modeling Space Charge in an FFAG with Zgoubi |
322 |
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- S.C. Tygier, R. Appleby, H.L. Owen
UMAN, Manchester, United Kingdom
- R.J. Barlow
University of Huddersfield, Huddersfield, United Kingdom
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The Zgoubi particle tracker uses a ray tracing algorithm that can accurately track particles with large offset from any reference momentum and trajectory, making it suitable for FFAGs. In high current FFAGs, for example an ADSR driver, space charge has a significant effect on the beam. A transverse space charge model was added to Zgoubi using the interface pyZgoubi. The magnets are sliced and a space charge kick is applied between each slice. Results are presented for an ADSR driver lattice.
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MOPPR046 |
CLIC Luminosity Monitoring |
885 |
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- A. Apyan, L.C. Deacon, E. Gschwendtner, T. Lefèvre
CERN, Geneva, Switzerland
- R. Appleby, S.C. Tygier
UMAN, Manchester, United Kingdom
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The CLIC post-collision line is designed to transport the un-collided beams and the products of the collided beams with a total power of 14MW to the main beam dump. Luminosity monitoring for CLIC is based on high energy muons produced by bremsstrahlung photons in the main dump. Threshold Cherenkov counters are proposed for the detection of these muons. The expected rates and layout for these detectors is presented. Another method for luminosity monitoring is to directly detecting the bremsstrahlung photons in the post-collision line; Full Monte Carlo simulation has been performed to address its feasibility.
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