Author: Rees, G.H.
Paper Title Page
THO3LR02 Ring Simulation and Beam Dynamics Studies for ISIS Upgrades 0.5 to 10 MW 374
 
  • D.J. Adams, B. Jones, B.G. Pine, H. V. Smith, C.M. Warsop, R.E. Williamson
    STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
  • C.R. Prior, G.H. Rees
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon, United Kingdom
 
  Var­i­ous up­grade routes are under study for the ISIS spal­la­tion neu­tron source at RAL in the UK. Re­cent work has con­cen­trated on up­grad­ing the in­jec­tor, in­creas­ing in­jec­tion en­ergy from 70 to 180 MeV, and study­ing the chal­leng­ing pos­si­bil­ity of reach­ing pow­ers up to 0.5 MW in the ex­ist­ing 800 MeV RCS. Stud­ies for the longer term are ex­plor­ing the pos­si­bil­i­ties of a 5 MW, 3.2 GeV RCS that could form part of a new stand-alone 10+ MW next gen­er­a­tion “ISIS II” fa­cil­ity. A cen­tral part of these ring stud­ies is the use of com­puter sim­u­la­tions to guide de­signs, for ex­am­ple op­ti­mis­ing the in­jec­tion paint­ing con­fig­u­ra­tion and pro­vid­ing an in­di­ca­tion of ex­pected loss lev­els. Here we sum­marise the com­puter mod­els used, in­di­cate where bench­mark­ing has been pos­si­ble, de­scribe op­ti­mi­sa­tions and re­sults from stud­ies, and out­line the main un­cer­tain­ties. Un­der­stand­ing the lim­i­ta­tions in high power RCS ac­cel­er­a­tors is an im­por­tant part of de­ter­min­ing op­ti­mal fa­cil­ity de­signs for the fu­ture.  
slides icon Slides THO3LR02 [2.658 MB]