Abstract
The results of a comparative study of low beta multi-gap superconducting bunchers for 216.816 MHz and a relative velocity of 0.07c with dedicated limitations of the overall geometrical dimensions are presented. A comparison of electrodynamic, mechanical and thermal properties of 3-gap and 2-gap cavities is shown.
Highlights
The high current heavy ion accelerator UNILAC (UNIversal Linear ACcelerator) is currently being upgraded in order to be used as an injector for the FAIR (Facility for Antiproton and Ion Research) project [1,2,3,4,5]
The proposed beam dynamics concept assumes the use of Crossbar H-Mode (CH) cavities in combination with two superconducting solenoids and a re-buncher cavity within one cryomodule (Fig. 1)
The geometry of the 3-gap cavity was optimized for advanced mechanical stability in order to minimize affections of Lorentz force detuning and liquid helium pressure instabilities
Summary
The high current heavy ion accelerator UNILAC (UNIversal Linear ACcelerator) is currently being upgraded in order to be used as an injector for the FAIR (Facility for Antiproton and Ion Research) project [1,2,3,4,5]. In future the UNILAC will provide high-intensity short pulses [6], while the UNILAC-user program, as the super heavy elements (SHE) research, preferably operates in CWmode. For that purposes a collaboration of GSI Helmholtzzentrum fuer Schwerionenforschung (GSI, Darmstadt, Germany), Helmholtz Institute Mainz (HIM, Mainz, Germany) and Institut für Angewandte Physik/GoetheUniversität (IAP, Frankfurt am Main, Germany) is currently developing a new superconducting CW-linac [711]. The proposed beam dynamics concept assumes the use of Crossbar H-Mode (CH) cavities in combination with two superconducting solenoids and a re-buncher cavity within one cryomodule (Fig. 1). The necessity for fitting the re-buncher into the existing cryostat, together with the already fabricated CH0, CH1 and CH2 cavities, determines the operating frequency (216.816 MHz) of the re-buncher cavity and dictate several constraints on its overall geometrical dimensions (Table 1)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
