Arclike variable bunch compressors

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Electron bunch compressors formed of achromat arcs have a natural advantage over the more commonly used chicane compressors in that linearization of the longitudinal phase space is of the correct sign to compensate for the curvature imprinted by rf acceleration. Here we extend the utility of arc compressors to enable variation of the longitudinal compaction within a fixed footprint. We also show that this variability can be achieved independently order by order in momentum deviation. The technique we employ consists of additional dipoles, leading to the advantageous property that variability can be achieved without incurring significant penalty in terms of chromatic degradation. We show this by comparison to an alternative system where additional quadrupoles are utilized to enable variation of momentum compaction. Each of these alternative approaches are being considered in the context of an upgrade of the MAX IV linac, Sweden, to enable a soft X-ray free-electron laser in addition to its existing functions.

Detaljer

Författare
  • Peter H. Williams
  • Gustavo Pérez-Segurana
  • Ian R. Bailey
  • Sara Thorin
  • Bill Kyle
  • Jonas Björklund Svensson
Enheter & grupper
Externa organisationer
  • Cockcroft Institute
  • Lancaster University
  • Daresbury Laboratory
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Acceleratorfysik och instrumentering
Originalspråkengelska
Artikelnummer100701
TidskriftPhysical Review Accelerators and Beams
Volym23
Utgåva nummer10
StatusPublished - 2020
PublikationskategoriForskning
Peer review utfördJa