| Paper |
Title |
Page |
| MOPAB267 |
End to End Simulations of Antiproton Transport and Degradation |
847 |
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- S. Padden, E. Kukstas, P. Pusa, V. Rodin, C.P. Welsch
The University of Liverpool, Liverpool, United Kingdom
- K. Nordlund
HIP, University of Helsinki, Finland
- V. Rodin, C.P. Welsch
Cockcroft Institute, Warrington, Cheshire, United Kingdom
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The ELENA ring decelerates anti-protons to 100 keV down from 5.3 MeV with transport to experiments handled by electrostatic transfer lines. Even at 100 keV antiprotons are still too high in energy for direct injection into an ion trap, and this is why degrader foils are used to further lower the energy. This contribution presents full end-to-end simulations from the point of extraction until passing through the foil using realistic beam transport simulations coupled with accurate simulations of degrader foils via the use of density functional theory and molecular dynamics. Particles are tracked from the point of extraction until their injection into the trap with full physical modeling at all time steps. The results of this study provide a versatile platform for the optimization of low energy ion experiments towards specific targets.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB267
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| About • |
paper received ※ 19 May 2021 paper accepted ※ 09 June 2021 issue date ※ 24 August 2021 |
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| TUPAB285 |
Broadband Imaging of Coherent Radiation as a Single-Shot Bunch Length Monitor with Femtosecond Resolution |
2147 |
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- J. Wolfenden, R.B. Fiorito, E. Kukstas, C.P. Welsch
The University of Liverpool, Liverpool, United Kingdom
- M. Brandin, B.S. Kyle, E. Mansten, S. Thorin
MAX IV Laboratory, Lund University, Lund, Sweden
- R.B. Fiorito, C.P. Welsch, J. Wolfenden
Cockcroft Institute, Warrington, Cheshire, United Kingdom
- E. Mansten
Lund University, Division of Atomic Physics, Lund, Sweden
- T.H. Pacey
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
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Funding: This work is supported by the AWAKE-UK project funded by STFC and the STFC Cockcroft core grant No. ST/G008248/1
Bunch length measurements with femtosecond resolution are a key component in the optimisation of beam quality in FELs, storage rings, and plasma-based accelerators. This contribution presents the development of a novel single-shot bunch length monitor with femtosecond resolution, based on broadband imaging of the spatial distribution of emitted coherent radiation. The technique can be applied to many radiation sources; in this study the focus is coherent transition radiation (CTR) at the MAX IV Short Pulse Facility. Bunch lengths of interest at this facility are <100 fs FWHM; therefore the CTR is in the THz to Far-IR range. To this end, a THz imaging system has been developed, utilising high resistivity float zone silicon lenses and a pyroelectric camera; building upon previous results where single-shot compression monitoring was achieved. This contribution presents simulations of this new CTR imaging system to demonstrate the synchrotron radiation mitigation and imaging capability provided, alongside initial measurements and a bunch length fitting algorithm, capable of shot-to-shot operation. A new machine learning analysis method is also discussed.
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Poster TUPAB285 [2.008 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB285
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| About • |
paper received ※ 17 May 2021 paper accepted ※ 24 June 2021 issue date ※ 23 August 2021 |
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| Export • |
reference for this paper using
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