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MOPMR037 |
Analysis of Asymmetry Tolerances and Cross-coupling in Cavity BPMs |
331 |
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- E. Yamakawa, S.T. Boogert, A. Lyapin, L.J. Nevay
JAI, Egham, Surrey, United Kingdom
- S. Syme
FMB Oxford, Oxford, United Kingdom
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Geometric asymmetries in cavity BPMs result in a coupling between horizontal and vertical signals, which complicates their usage and may affect both the dynamic range and spatial resolution of the system in both directions. Tolerances to several types of geometric asymmetries have been analysed using a 3D electromagnetic field solver (GdfidL). We report on some of the results and discussed the possible impact of the considered geometrical distortions.
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WEPOY046 |
Beam Delivery Simulation: BDSIM - Automatic Geant4 Models of Accelerators |
3098 |
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- L.J. Nevay, S.T. Boogert, L.C. Deacon, S.M. Gibson, R. Kwee-Hinzmann, W. Shields, J. Snuverink
JAI, Egham, Surrey, United Kingdom
- H. Garcia
CERN, Geneva, Switzerland
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Beam Delivery Simulation (BDSIM) is a program that uses a suite of high energy physics software including Geant4, CLHEP & ROOT, that seamlessly tracks particles through accelerators and detectors utilising the full range of particles and physics processes from Geant4. BDSIM has been used to simulate linear colliders such as the International Linear Collider (ILC) and more recently, circular colliders such as the Large Hadron Collider (LHC). The latest developments including improved geometry modelling; external geometry support; process biasing; and a new event display are presented. A significantly revised and improved accompanying tool chain is presented comprising of a series of Python utilities that allow efficient and automatic preparation of models. Furthermore, a library for both ROOT and Python that provides powerful analysis and event viewing after simulation is demonstrated.
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WEPOY047 |
LHC Collimation and Energy Deposition Studies Using Beam Delivery Simulation (BDSIM) |
3101 |
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- L.J. Nevay, S.T. Boogert, S.M. Gibson, R. Kwee-Hinzmann
JAI, Egham, Surrey, United Kingdom
- R. Bruce, H. Garcia, S. Redaelli
CERN, Geneva, Switzerland
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Beam Delivery Simulation (BDSIM) is a program that uses a suite of high energy physics software including Geant4, CLHEP & ROOT, that seamlessly tracks particles through accelerators and detectors utilising the full range of particles and physics processes from Geant4. A comparison of the collimator cleaning efficiency and energy deposition throughout the full length of the Large Hadron Collider (LHC) with the established SixTrack simulations of the CERN collimation group is presented. The propagation of the full hadronic showers from collimators provides unparalleled detail in energy deposition maps and these are compared with the data from beam loss monitors that measure radiation outside the magnet body.
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