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Report number CERN-ACC-2017-349
Title Tuning of the CERN 750 MHz RFQ for medical applications
Author(s) Koubek, Benjamin (CERN) ; Cuvet, Yves (CERN) ; Grudiev, Alexej (CERN) ; Rossi, Carlo (CERN) ; Timmins, Marc (CERN)
Publication 2017
Number of pages 4
In: 28th Linear Accelerator Conference, East Lansing, Michigan, 25 - 30 Sep 2016, pp.THOP09
DOI 10.18429/JACoW-LINAC2016-THOP09
Subject category Accelerators and Storage Rings
Abstract CERN has built a compact 750 MHz RFQ as an injector for a hadron therapy linac. This RFQ was designed to accelerate protons to an energy of 5 MeV within only 2 m length. It is divided into four segments and equipped with 32 tuners in total. The RFQ length corresponds to 5λ which is considered to be close to the limit for simple field adjustment using tuners. Nevertheless the high frequency results in a sensitive structure and requires careful tuning by means of the alignment of the pumping ports and fixed tuners. This paper gives an overview of the tuning procedure and bead pull measurements of the RFQ.
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 Notice créée le 2018-02-13, modifiée le 2022-03-07


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