Dresden 2020 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 16: Posters

AKBP 16.9: Poster

Thursday, March 19, 2020, 16:30–18:00, P1C

Further Investigations on the Beam Dynamics Design of the FAIR p-Linac RFQ — •Marc Syha, Hendrik Hähnel, Ulrich Ratzinger, and Maximilian Schuett — Institute for Applied Physics, Frankfur, Gemrany

The construction of a 3.3 m Ladder-RFQ at IAP, Goethe University Frankfurt, has been finished successfully in 2018. This RFQ is designed to accelerate protons from 95 keV to 3.0 MeV according to the design parameters of the p-Linac [1, 2] at FAIR1 [3]. The development of an adequate beam dynamics design was done with the aid of the RFQGen-code and in close collaboration with the IAP resonator design team, whereby a design current of 100 mA was assumed. The RFQ beam dynamics design could be successfully reproduced with the TOUTATIS-routine of CEAs2 TraceWin-code in 2019. Furthermore, the effects of image-charge effects and bunch-bunch interactions on the RFQGen simulations were examined. The results of these studies were then compared to field map calculations in TraceWin [2]. [1] C. M. Kleffner et al., *Status of the FAIR Proton Linac*, in Proc. 10th Int. Particle Accelerator Conf. (IPAC*19), Melbourne, Australia, May 2019. [2] H. Hähnel et al., *End to End Simulations and Error Studies of the FAIR Proton Linac*, in Proc. 10th Int. Particle Accelerator Conf. (IPAC*19), Melbourne, Australia, May 2019. [3] FAIR, https://fair-center.eu/index.php?id=1 [4] M. Schuett, M. Syha and U. Ratzinger, *Compensation of longitudinal entrance and exit gap field effects in RFQ*s of the 4-ROD type*, Nuc. Inst. A, Volume 928, p. 58.