| Paper |
Title |
Page |
THC2I1 |
Non-Invasive Transverse Profile Measurement Methods |
|
| |
- R.M. Thurman-Keup
Fermilab, Batavia, Illinois, USA
|
|
| |
Funding: This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics.
Beam profiling is an important aspect of controlling the behavior of the beam. Poorly controlled beams result in beam losses due to aperture restrictions leading to both lower intensity for the downstream experiments and increased radiation along the beamline. Since hadrons are much heavier than electrons, the availability of synchrotron radiation as a profiling mechanism is generally not available except at very high energies. This talk will present a summary of other non-invasive transverse profiling techniques used at hadron accelerators, including residual gas ionization and fluorescence, electron beam scanning, and laser stripping of bound electrons.
|
|
|
Slides THC2I1 [6.974 MB]
|
|
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| THC2I2 |
Extraction of LHC Beam Parameters from Schottky Signals |
382 |
| |
- K. Łasocha, D. Alves, C. Lannoy, N. Mounet
CERN, Meyrin, Switzerland
- C. Lannoy, T. Pieloni
EPFL, Lausanne, Switzerland
|
|
| |
Analysis of Schottky signals provides rich insights into the dynamics of a hadron beam, with well-established methods of deriving the betatron tune and machine chromaticity. In this contribution, we will report on recent developments in the analysis and understanding of the signals measured at the Large Hadron Collider during proton and Pb82+ fills. A fitting-based technique, where the measured spectra are iteratively compared with theoretical predictions, will be presented and compared with the previous methods. As a step beyond the classical theory of Schottky spectra, certain signal modifications due to the activity of the LHC machine systems will be discussed from the perspective of the applicability of the modified signal to the beam diagnostics.
|
|
|
|
Slides THC2I2 [9.053 MB]
|
|
| DOI • |
reference for this paper
※ doi:10.18429/JACoW-HB2023-THC2I2
|
|
| About • |
Received ※ 04 October 2023 — Revised ※ 08 October 2023 — Accepted ※ 09 October 2023 — Issued ※ 12 October 2023 |
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
THC2I3 |
Spectral Modification for BTF-Based Tune Measurements of Beam Close to a 3rd-Order Resonance |
|
| |
- E.C. Cortés García, P.J. Niedermayer, R. Singh
GSI, Darmstadt, Germany
- E. Benedetto, R.L. Taylor
CERN, Meyrin, Switzerland
- E. Benedetto
SEEIIST, Geneva, Switzerland
- E.C. Cortés García
DESY, Hamburg, Germany
- E. Feldmeier
HIT, Heidelberg, Germany
|
|
| |
Funding: This project has received funding from the European Union¿s Horizon 2020 Research and Innovation programme under GA No 101004730.
The beam response to an external periodic excitation delivers relevant information about the ion-beam optics, tune distribution and stability of a circulating beam in a storage ring. In this contribution the horizontal beam response under conditions typical for slow extraction is presented for a coasting beam by means of the beam transfer function. The spectral modifications are discussed.
|
|
|
|
Slides THC2I3 [3.590 MB]
|
|
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |