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Systematic studies of the microbunching instability at very low bunch charges

Brosi, Miriam LU orcid ; Steinmann, Johannes L. ; Blomley, Edmund ; Boltz, Tobias ; Bründermann, Erik ; Gethmann, Julian ; Kehrer, Benjamin ; Mathis, Yves Laurent ; Papash, Alexander and Schedler, Manuel , et al. (2019) In Physical Review Accelerators and Beams 22(2).
Abstract

At KARA, the Karlsruhe Research Accelerator of the Karlsruhe Institute of Technology synchrotron, the so-called short-bunch operation mode allows the reduction of the bunch length down to a few picoseconds. The microbunching instability resulting from the high degree of longitudinal compression leads to fluctuations in the emitted terahertz radiation, referred to as bursting. For extremely compressed bunches at KARA, bursting occurs not only in one but in two different bunch-current ranges that are separated by a stable region. This work presents measurements of the thresholds and bursting frequencies in both regimes. Good agreement is found between the data and numerical solutions of the Vlasov-Fokker-Planck equation.

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publishing date
type
Contribution to journal
publication status
published
in
Physical Review Accelerators and Beams
volume
22
issue
2
article number
020701
publisher
American Physical Society
external identifiers
  • scopus:85062040438
ISSN
2469-9888
DOI
10.1103/PhysRevAccelBeams.22.020701
language
English
LU publication?
no
additional info
Publisher Copyright: © 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the «https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
id
f06e0556-b1fb-4108-972f-13e7f5cc5c93
date added to LUP
2024-11-26 10:01:53
date last changed
2024-11-26 11:57:31
@article{f06e0556-b1fb-4108-972f-13e7f5cc5c93,
  abstract     = {{<p>At KARA, the Karlsruhe Research Accelerator of the Karlsruhe Institute of Technology synchrotron, the so-called short-bunch operation mode allows the reduction of the bunch length down to a few picoseconds. The microbunching instability resulting from the high degree of longitudinal compression leads to fluctuations in the emitted terahertz radiation, referred to as bursting. For extremely compressed bunches at KARA, bursting occurs not only in one but in two different bunch-current ranges that are separated by a stable region. This work presents measurements of the thresholds and bursting frequencies in both regimes. Good agreement is found between the data and numerical solutions of the Vlasov-Fokker-Planck equation.</p>}},
  author       = {{Brosi, Miriam and Steinmann, Johannes L. and Blomley, Edmund and Boltz, Tobias and Bründermann, Erik and Gethmann, Julian and Kehrer, Benjamin and Mathis, Yves Laurent and Papash, Alexander and Schedler, Manuel and Schönfeldt, Patrik and Schreiber, Patrick and Schuh, Marcel and Schwarz, Markus and Müller, Anke Susanne and Caselle, Michele and Rota, Lorenzo and Weber, Marc and Kuske, Peter}},
  issn         = {{2469-9888}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{2}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Accelerators and Beams}},
  title        = {{Systematic studies of the microbunching instability at very low bunch charges}},
  url          = {{http://dx.doi.org/10.1103/PhysRevAccelBeams.22.020701}},
  doi          = {{10.1103/PhysRevAccelBeams.22.020701}},
  volume       = {{22}},
  year         = {{2019}},
}