TY - CONF AU - Dolegieviez, P. AU - Ferdinand, R. AU - Ledoux, X. AU - Savajols, H. AU - Varenne, F. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Status of the SPIRAL2 Project J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The SPIRAL2 facility at GANIL will use a high-power p, d and heavy-ion superconducting linac for a wide range of applications including RIB production using both ISOL and in-flight techniques. The SPIRAL2 phase 1 deals with the high-power superconducting linac with two experimental areas called ’Neutrons for Science’ (NFS) and ’Super Separator Spectrometer’ (S3). The low energy experimental hall DESIR, under construction, will further increase the possibility for physics experiments. All the linac is installed, the commissioning of the injec-tor part (two sources and the A/Q = 3 RFQ) and two cool down of the entire superconducting linac have been suc-cessfully done. We are now in the linac beam commis-sioning phase. The project scope and parameters, the constraints linked to the safety rules, the accelerator, NFS, S3 and DESIR status and the planning will be pre-sented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 844 EP - 847 KW - linac KW - neutron KW - experiment KW - MMI KW - proton DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPTS005 UR - http://jacow.org/ipac2019/papers/mopts005.pdf ER - TY - CONF AU - Ferdinand, R. AU - Di Giacomo, M. AU - Franberg, H. AU - Lagniel, J.-M. AU - Normand, G. AU - Savalle, A. AU - Uriot, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Final Results of the SPIRAL2 Injector Commissioning J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The SPIRAL2 injector, made up of a 5 mA p-d ion source, a 1 mA heavy ion source (up to A/Q = 3) and a CW 0.75 MeV/u RFQ, has been commissioned in parallel with the superconducting linac installation. This com-missioning is successfully completed now and the Diag-nostic plate (D-plate) used to characterize the injector beams is removed. This paper presents the results ob-tained with the reference particles (H⁺, 4He2+, 18O6+ and 40Ar14+) and a comparison with the simulations. The connexion to the SC linac and the future linac beam commissioning is briefly described. PB - JACoW Publishing CP - Geneva, Switzerland SP - 848 EP - 851 KW - rfq KW - emittance KW - LEBT KW - MMI KW - linac DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPTS006 UR - http://jacow.org/ipac2019/papers/mopts006.pdf ER - TY - CONF AU - Ghribi, A. AU - Bernaudin, P.-E. AU - Ferdinand, R. AU - Vassal, A.V. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Cryogenic Tests of the SPIRAL2 LINAC Systems J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - Two full cool-down of the SPIRAL2 superconducting LINAC have been performed in 2017 and 2018 respectively, followed by a total of around 5 months of tests at 4 K. Several cool-down strategies were tested, in order to minimize 100 K effect on the SC cavities. Helium bath regulations (level and pressure) have been tested and optimized. Effects of pressure instabilities and coupling with the cryogenic plant have also been observed. Cryogenic performances of each cryomodule have been measured. Low-level RF measurements were also performed on all cavities and showed unidentified modulations at frequencies around 5Hz. These turned out to be thermoacoustic oscillations (TAO) on the cryogenic lines, which generate important pressure instabilities. Several solutions to remove TAO and cure these instabilities have been tested and one has been successfully deployed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1240 EP - 1243 KW - cavity KW - cryomodule KW - cryogenics KW - linac KW - operation DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPMP006 UR - http://jacow.org/ipac2019/papers/tupmp006.pdf ER - TY - CONF AU - Normand, G. AU - Di Giacomo, M. AU - Ferdinand, R. AU - Kamalou, O. AU - Lagniel, J.-M. AU - Savalle, A. AU - Uriot, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - SPIRAL2 RFQ Bunch Length and Longitudinal Emittance Measurements. J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The SPIRAL2 RFQ is designed to accelerate light and heavy ions up to A/Q=3 in CW mode to 0.75MeV/u. During its commissioning, the bunch lengths measured using a Beam Extension Monitor were compared with simulations for different ion species (Proton, Helium, Oxygen, Argon). The longitudinal emittances measured using the 3 gradients method and a multiparticule optimization method were also compared successfully to the expected ones. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1944 EP - 1947 KW - simulation KW - rfq KW - emittance KW - proton KW - linac DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPTS007 UR - http://jacow.org/ipac2019/papers/tupts007.pdf ER - TY - CONF AU - Di Giacomo, M. AU - Desmons, M. AU - Ferdinand, R. AU - Franberg, H. AU - Galdemard, P. AU - Lagniel, J.-M. AU - Lussignol, Y. AU - Normand, G. AU - Piquet, O. AU - Sube, S. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - RF Commissioning of the SPIRAL2 RFQ in CW Mode and Beyond Nominal Field J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The SPIRAL2 RFQ was recently successfully commissioned at nominal voltage of 114 kV, corresponding to 1.65 Kilpatrick factor. The paper describes limitations of the RFQ main subsystems, cavity conditioning difficulties, as well as changes implemented in the LLRF and automatic procedures to simplify turn on and operation of the whole system. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2804 EP - 2806 KW - cavity KW - LLRF KW - rfq KW - controls KW - vacuum DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPRB007 UR - http://jacow.org/ipac2019/papers/weprb007.pdf ER - TY - CONF AU - Zhao, L. AU - Berthier, R. AU - Braud, R. AU - Chirpaz-Cerbat, D. AU - Di Giacomo, M. AU - Dumas, J. AU - Duperrier, R.D. AU - Gohier, F. AU - Gougnaud, F. AU - Guiho, P. AU - Joannem, T.J. AU - Kaizer, B. AU - Ladegaillerie, S. AU - Leyge, J.F. AU - Marchand, C. AU - Michel, M. AU - Piquet, O. AU - Solenne, N. AU - Uriot, D. AU - Weissman, L. AU - Zhu, X.W. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - RF Power Test of the Rebuncher for Saraf-Linac J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - Three normal conducting rebunchers will be installed at the Medium Energy Beam Transport (MEBT) of the SARAF-LINAC phase II [saraf]. The MEBT line is designed to follow a 1.3 MeV/u RFQ, is about 5 m long, and contains three 176 MHz rebunchers providing a field integral of 10⁵ kV. CEA is in charge of the design and fabrication of the Cu plated stainless steel, 3-gap rebuncher. The high power tests and RF conditioning have been successfully performed at the CEA Saclay on the first cavity. A solid state power amplifier, which has been developed by SNRC and has been used for the RF tests. The cavity has shown a good performance according to calculations, regarding the dissipated power, peak temperatures and coupling factor. RF conditioning was started with a duty cycle of 1\% and increased gradually until continuous wave (CW), which is the nominal working mode in SARAF-LINAC. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2815 EP - 2817 KW - cavity KW - EPICS KW - controls KW - linac KW - MEBT DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPRB010 UR - http://jacow.org/ipac2019/papers/weprb010.pdf ER - TY - CONF AU - Zhukov, A.P. AU - Allen, C.K. AU - Bolling, B.E. AU - Chu, C.P. AU - Dodson, T. AU - Esteban Müller, J.F. AU - Gillette, P. AU - Laface, E. AU - Laurent, P. AU - Levinsen, Y. AU - Li, M.T. AU - Li, Y. AU - Lu, X.H. AU - Milas, N. AU - Normand, G. AU - Peng, J. AU - Rosati, C. AU - Savalle, A. AU - Shishlo, A.P. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Open XAL Status Report 2019 J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The Open XAL accelerator physics software platform is being developed through an international collaboration among several facilities since 2010. This paper discusses progress in beam dynamics simulation, new RF models, and updated application framework along with new generic accelerator physics applications. We present the current status of the project, a roadmap for continued development and an overview of the project status at each participating facility. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3341 EP - 3344 KW - cavity KW - LEBT KW - linac KW - framework KW - status DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPTS096 UR - http://jacow.org/ipac2019/papers/wepts096.pdf ER -