Author: Syha, M.
Paper Title Page
THPAB167 Technical Design of an RFQ Injector for the IsoDAR Cyclotron 4075
 
  • H. Höltermann, D. Koser, B. Koubek, H. Podlech, U. Ratzinger, M. Schuett, M. Syha
    BEVATECH, Frankfurt, Germany
  • J.M. Conrad, J. Smolsky, L.H. Waites, D. Winklehner
    MIT, Cambridge, Massachusetts, USA
  
  For the Iso­DAR (Iso­tope De­cay-At-Rest) ex­per­i­ment, a high in­ten­sity (10 mA CW) pri­mary pro­ton beam is needed. To gen­er­ate this beam, H2+ is ac­cel­er­ated in a cy­clotron and stripped into pro­tons after ex­trac­tion. An RFQ, par­tially em­bed­ded in the cy­clotron yoke, will be used to bunch and ax­i­ally in­ject H2+ ions into the main ac­cel­er­a­tor. The strong RFQ bunch­ing ca­pa­bil­i­ties will be used to op­ti­mize the over­all in­jec­tion ef­fi­ciency. To keep the setup com­pact the dis­tance be­tween the ion source and RFQ can be kept very short as well. In this paper, we de­scribe the tech­ni­cal de­sign of the RFQ. We focus on two crit­i­cal as­pects: 1. The use of a split-coax­ial struc­ture, ne­ces­si­tated by the low fre­quency of 32.8 MHz (match­ing the cy­clotron RF) and the de­sired small tank di­am­e­ter; 2. The high cur­rent, CW op­er­a­tion, re­quir­ing a good cool­ing con­cept for the RFQ tank and vanes.  
poster icon Poster THPAB167 [2.162 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB167  
About • paper received ※ 14 May 2021       paper accepted ※ 27 July 2021       issue date ※ 21 August 2021  
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