Author: Seville, A.
Paper Title Page
THBP59 Tomographic Longitudinal Phase Space Reconstruction of Bunch Compression at ISIS 625
 
  • B.S. Kyle, H.V. Cavanagh, A. Seville, R.E. Williamson
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
  
  ISIS is an 800 MeV, high in­ten­sity, rapid-cy­cling syn­chro­tron (RCS) used as a dri­ver for a spal­la­tion neu­tron and muon spec­troscopy (¿SR) fa­cil­ity. The in­ten­sity-lim­ited beam and RCS op­er­a­tion at ISIS poses sig­nif­i­cant chal­lenges, with non-adi­a­batic ac­cel­er­a­tion and space charge forces re­sult­ing in dis­tor­tions to the Hamil­ton­ian lon­gi­tu­di­nal dy­nam­ics. Ef­fec­tive mod­el­ling of the ma­chine and bench­mark­ing of mod­els with beam mea­sure­ments is es­sen­tial both to im­prov­ing ma­chine per­for­mance, and to the de­vel­op­ment of the pro­posed ISIS II fa­cil­ity. The to­mo­graphic prin­ci­ple is a well-es­tab­lished tool for the re­con­struc­tion of the lon­gi­tu­di­nal phase space (LPS) of syn­chro­tron beams. Is it op­er­a­tionally de­sir­able for the ISIS ac­cel­er­a­tor to pro­vide lon­gi­tu­di­nally com­pressed pro­ton beams for ¿SR in­stru­men­ta­tion. A new bunch com­pres­sion scheme has been de­vel­oped and val­i­dated using to­mog­ra­phy. A re­con­struc­tion of the LPS of the ISIS high-in­ten­sity pro­ton beam is pre­sented, along with ac­com­pa­ny­ing bench­mark­ing mea­sure­ments and beam physics sim­u­la­tions.  
poster icon Poster THBP59 [0.907 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-HB2023-THBP59  
About • Received ※ 01 October 2023 — Revised ※ 09 October 2023 — Accepted ※ 20 October 2023 — Issued ※ 25 October 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)