Author: Stoll, C.P.
Paper Title Page
MOPAB217 A Storage Ring for MESA 719
 
  • C.P. Stoll, A. Meseck
    KPH, Mainz, Germany
  • B. Ledroit
    HIM, Mainz, Germany
  
  The Mainz En­ergy-re­cov­er­ing Su­per­con­duct­ing Ac­cel­er­a­tor (MESA) is an En­ergy Re­cov­ery Linac (ERL) fa­cil­ity under con­struc­tion at the Jo­hannes Guten­berg-Uni­ver­sity in Mainz. It pro­vides the op­por­tu­nity for pre­ci­sion physics ex­per­i­ments with a 1 mA c.w. elec­tron beam in its ini­tial phase. In this phase ex­per­i­ments with un­po­larised, high den­sity 1019 atoms cm2 gas jet tar­gets are fore­seen at the Mainz Gas In­ter­nal Tar­get Ex­per­i­ment (MAGIX). To allow ex­per­i­ments with thin po­larised gas tar­gets with suf­fi­ciently high in­ter­ac­tion rates in a later phase, the beam cur­rent has to be in­creased to up to 100 mA, which would pose sig­nif­i­cant chal­lenges to the ex­ist­ing ERL ma­chine. Thus, it is pro­posed here to use MESA in pulsed op­er­a­tion with a rep­e­ti­tion rate of sev­eral kHz to fill a stor­age ring, pro­vid­ing a quasi c.w. beam cur­rent to a thin gas tar­get. For this pur­pose, the ex­ist­ing op­tics need to be ex­tended and adapted, a suit­able in­jec­tion and ex­trac­tion scheme is nec­es­sary and beam tar­get in­ter­ac­tion must be in­ves­ti­gated. First con­sid­er­a­tions on these top­ics are pre­sented here.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB217  
About • paper received ※ 18 May 2021       paper accepted ※ 08 June 2021       issue date ※ 21 August 2021  
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