TY - CONF AU - Pugnat, T. AU - Bonaventura, L. AU - Dalena, B. AU - De Maria, R. AU - Olsen, V.K.B. AU - Simona, A. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Study of Fringe Fields Effects from Final Focus Quadrupoles on Beam Based Measured Quantities J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - Accelerator physics needs advanced modeling and simulation techniques, in particular for beam stability studies. A deeper understanding of the effects of magnetic fields non-linearities will greatly help in the improvement of future colliders design and performance. In *, a new tracking method was proposed to study the effect of the longitudinal dependency of the harmonics on the beam dynamics. In this paper, the study will focus on the effects on observable quantities in beam based measurements, for the case of HL-LHC Inner Triplet and with possible tests in LHC. PB - JACoW Publishing CP - Geneva, Switzerland SP - 90 EP - 93 KW - quadrupole KW - multipole KW - optics KW - dynamic-aperture KW - simulation DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPGW012 UR - http://jacow.org/ipac2019/papers/mopgw012.pdf ER - TY - CONF AU - Boutin, D. AU - Chancé, A. AU - Dalena, B. AU - Holzer, B.J. AU - Schulte, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Optic Corrections for FCC-hh J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The FCC-hh (Future Hadron-Hadron Circular Collider) is one of the options considered for the next generation accelerator in high-energy physics as recommended by the European Strategy Group. The evaluation of the various magnets mechanical error and field error tolerances in the arc sections of FCC-hh, as well as an estimation of the required correctors strengths, are important aspects of the collider design. In this study the mechanical tolerances, dipole and quadrupole field error tolerances for the arc sections of FCC-hh are evaluated. The consolidated correction schemes of the linear coupling (with skew quadrupoles) and of the beam tunes (with normal quadrupoles) are presented. The integration of the different ring insertions (interaction region, collimation, injection, etc) is also discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 417 EP - 419 KW - quadrupole KW - injection KW - insertion KW - dipole KW - coupling DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPMP001 UR - http://jacow.org/ipac2019/papers/mopmp001.pdf ER - TY - CONF AU - Chancé, A. AU - Bartmann, W. AU - Boutin, D. AU - Dalena, B. AU - Hofer, M. AU - Martin, R. AU - Schulte, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Consolidated Lattice of the Collider FCC-hh J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The FCC-hh (Future Hadron-Hadron Circular Collider) is one of the options considered for the next generation accelerator in high-energy physics as recommended by the European Strategy Group. The latest changes brought to the lattice of the FCC-hh collider are commented: impact of the new intra-beam distance, efforts to increase the beam stay clear in the dispersion suppressors, tuning procedures, and updates on the insertions. PB - JACoW Publishing CP - Geneva, Switzerland SP - 428 EP - 431 KW - dipole KW - quadrupole KW - injection KW - optics KW - insertion DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPMP004 UR - http://jacow.org/ipac2019/papers/mopmp004.pdf ER - TY - CONF AU - Dalena, B. AU - Boutin, D. AU - Chancé, A. AU - Cruz Alaniz, E. AU - Schulte, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Field Quality for the Hadron Option of Future Circular Collider J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The updated field quality for the baseline design option of the Nb₃Sn dipoles for Future Circular Collider (FCC-hh) is discussed. The impact on the expected dynamic aperture is shown at injection and collision energy and the consequent non-linear correction schemes together with their integration in the optics are defined. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4397 EP - 4400 KW - injection KW - dipole KW - octupole KW - collider KW - target DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPMP005 UR - http://jacow.org/ipac2019/papers/mopmp005.pdf ER - TY - CONF AU - Piquet, O. AU - Boulch, C. AU - Braud, D. AU - Carbonnier, P. AU - Chirpaz-Cerbat, D. AU - Ferrand, G. AU - Gohier, F. AU - Gouit, F. AU - Guiho, P. AU - Joannem, T.J. AU - Maurice, L. AU - Monnereau, G. AU - Plaisant, Th. AU - Plouin, J. AU - Pérolat, A. AU - Sahuquet, P. AU - Solenne, N. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - SARAF Equipped Cavity Test Stand (ECTS) at CEA J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - CEA is committed to delivering a Medium Energy Beam Transfer line and a Super Conducting Linac (SCL) for SARAF accelerator in order to accelerate 5mA beam of either protons from 1.3MeV to 35MeV or deuterons from 2.6 MeV to 40.1MeV. The SCL consists in 4 cryomodules separated by warm section housing beam diagnostics. The two first identical cryomodules hosts respectively 6 and 7 half-wave resonator (HWR) low beta (0.091) cavities 176MHz. In order to test the cavity with its tuner and coupler and validate some design consideration, the Equipped Cavity Test Stand (ECTS) has been designed and will be presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 852 EP - 854 KW - cavity KW - cryomodule KW - cryogenics KW - controls KW - EPICS DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPTS007 UR - http://jacow.org/ipac2019/papers/mopts007.pdf ER - TY - CONF AU - Piquet, O. AU - Chauveau, A.C. AU - Chirpaz-Cerbat, D. AU - Desmons, M. AU - Dubois, A. AU - France, A.C. AU - Gaget, A. AU - Hamel, P. AU - Le Noa, Y. AU - Napoly, L. AU - Oublaid, M. AU - Perreu, G. AU - Pottin, B. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - ESS RFQ: Construction Status and Power Couplers Qualification J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The 352 MHz Radio Frequency Quadrupole (RFQ) for the European Spallation Source ERIC (ESS) will be de-livered during 2019. It is provided by CEA, IRFU, Sac-lay/France. It consists of five sections with a total length of 4.6 m and accelerates the proton beam from 75 keV up to 3.6 MeV. It will be feed with 1.6 MW peak power through two coaxial loop couplers. This paper will present the manufacturing status of the five sections and the qualification test of the RF power couplers. PB - JACoW Publishing CP - Geneva, Switzerland SP - 855 EP - 857 KW - rfq KW - vacuum KW - cavity KW - coupling KW - pick-up DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPTS008 UR - http://jacow.org/ipac2019/papers/mopts008.pdf ER - TY - CONF AU - Shimosaki, Y. AU - Bellan, L. AU - Brañas Lasala, B. AU - Cara, P. AU - Chauvin, N. AU - Comunian, M. AU - Duglue, G. AU - Dzitko, H. AU - Fagotti, E. AU - Heidinger, R. AU - Kasugai, A. AU - Kobayashi, H. AU - Kondo, K. AU - Oliver, C. AU - Pisent, A. AU - Podadera, I. AU - Sakamoto, K. AU - Sugimoto, M. AU - Takayama, K. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Lattice Design for 5MeV-125mA CW RFQ Operation in the LIPAc J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The installation and commissioning of the LIPAc are ongoing under the Broader Approach agreement, which is the prototype accelerator of the IFMIF for proof of princi-ple and design. The deuteron beam will be accelerated by the RFQ linac from 100 keV to 5 MeV during the com-missioning phase-B and by the SRF linac up to 9 MeV during the phase-C. The commissioning phase-B+ will be implemented between phase-B and C to complete the engineering validation of the RFQ linac before installing the SRF linac. The lattice for the deuteron beam of 5 MeV and 125 mA at the commissioning phase-B+ was designed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 977 EP - 979 KW - linac KW - SRF KW - rfq KW - MMI KW - MEBT DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-MOPTS051 UR - http://jacow.org/ipac2019/papers/mopts051.pdf ER - TY - CONF AU - Nghiem, P.A.P. AU - Alesini, D. AU - Aschikhin, A. AU - Audet, T. AU - Aßmann, R.W. AU - Beck, A. AU - Chancé, A. AU - Chen, M. AU - Chiadroni, E. AU - Cianchi, A. AU - Clarke, J.A. AU - Couprie, M.-E. AU - Croia, M. AU - Cros, B. AU - Dattoli, G. AU - Del Dotto, A. AU - Delerue, N. AU - Dorda, U. AU - Ferran Pousa, A. AU - Ferrario, M. AU - Fonseca, R.A. AU - Ghaith, A. AU - Giribono, A. AU - Gizzi, L.A. AU - Helm, A. AU - Hidding, B. AU - Hooker, S.M. AU - Ibison, M.G. AU - Jaroszynski, D.A. AU - Kruchinin, K.O. AU - Labate, L. AU - Lee, P. AU - Li, F.Y. AU - Li, X. AU - Libov, V. AU - Marchetti, B. AU - Martinez de la Ossa, A. AU - Marx, D. AU - Massimo, F. AU - Mathieu, F. AU - Maynard, G. AU - Mazzotta, Z. AU - Mehrling, T.J. AU - Molodozhentsev, A.Y. AU - Mosnier, A. AU - Mostacci, A. AU - Najmudin, Z. AU - Nguyen, F. AU - Niknejadi, P. AU - Oumbarek Espinos, D. AU - Pattathil, R. AU - Pompili, R. AU - Romeo, S. AU - Rossi, A.R. AU - Schaper, L. AU - Sheng, Z.M. AU - Shpakov, V. AU - Silva, L.O. AU - Silva, T. AU - Simon, C. AU - Specka, A. AU - Stella, A. AU - Streeter, M.J.V. AU - Svystun, E.N. AU - Symes, D. AU - Terzani, D. AU - Toci, G. AU - Tomassini, P. AU - Vaccarezza, C. AU - Vieira, J.M. AU - Vujanovic, M. AU - Walczak, R. AU - Walker, P.A. AU - Weikum, M.K. AU - Welsch, C.P. AU - Weng, S.M. AU - Wiggins, S.M. AU - Wolfenden, J. AU - Yoffe, S. AU - Zhu, J. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - EuPRAXIA, a Step Toward a Plasma-Wakefield Based Accelerator With High Beam Quality J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The EuPRAXIA project aims at designing the world’s first accelerator based on plasma-wakefield advanced technique, which can deliver a 5 GeV electron beam with simultaneously high charge, low emittance and low energy spread to user’s communities. Such challenging objectives can only have a chance to be achieved when particular efforts are dedicated to identify the subsequent issues and to find the way to solve them. Many injection/acceleration schemes and techniques have been explored by means of thorough simulations in more than ten European institutes to sort out the most appropriate ones. The specific issues of high charge, high beam quality and beam extraction then transfer to the user’s applications, have been tackled with many innovative approaches*. This article highlights the different advanced methods that have been employed by the EuPRAXIA collaboration and the preliminary results obtained. The needs in terms of laser and plasma parameters for such an accelerator are also summarized. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2291 EP - 2295 KW - plasma KW - laser KW - injection KW - acceleration KW - emittance DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEZZPLS2 UR - http://jacow.org/ipac2019/papers/wezzpls2.pdf ER - TY - CONF AU - Jenhani, H. AU - Bazin, N. AU - Boulch, C. AU - Chel, S. AU - Devanz, G. AU - Disset, G. AU - Kirpitchev, I. AU - Mollá, J. AU - Méndez, P. AU - Regidor, D. AU - Servouin, C. AU - de la Morena, C. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Validation of the Series Power Couplers of the LIPAc SRF Linac J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - In the framework of the IFMIF/EVEDA project, the cryomodule of the Linear IFMIF Prototype Accelerator (LIPAc) will be assembled then tested at Rokkasho in 2019. Eight Series Power Couplers (PC) operating at 175 MHz were manufactured under a CEA contract, in order to equip this Cryomodule. They were all successfully RF conditioned up to 100 kW CW in TW and SW configurations. All the high RF power tests were performed under CIEMAT responsibility in BTESA Company premises, according to the CEA requirements. In order to fix difficulties encountered during the fab process, manufacturing and quality control have been analyzed in depth. Thanks to the corrective actions implemented, every PC reached the performances targeted for qualification. This paper will give details about this manufacturing phase and provide an overview of the obtained RF test results. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2811 EP - 2814 KW - operation KW - SRF KW - cryomodule KW - vacuum KW - linac DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPRB009 UR - http://jacow.org/ipac2019/papers/weprb009.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 - Debongnie, M. AU - Baylac, M.A. AU - Bouly, F. AU - Chauvin, N. AU - Gatera, A. AU - Junquera, T. AU - Uriot, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Modelization of an Injector With Machine Learning J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - Modern particle accelerator projects, such as MYRRHA, have very high stability and/or reliability requirements. To meet those, it is necessary to optimize or develop new methods for the control systems. One of the difficulties lies in the relatively long computation time of current beam dynamics codes. In this context, the very low computation time of neural network is of great attraction. However, a neural network has to be trained in order to be of any use. The training of a beam dynamic predictor uses a large dataset (experimental or simulated) that represents the dynamics over the parameter space of interest. Therefore, choosing the right training dataset is crucial for the quality of the neural network predictions. In this work, a study on the sampling choice for the training data is performed to train a neural network to predict the transmission of a beam through a low energy beam transport line and a Radiofrequency Quadrupole. We show and discuss the results obtained on training data set to model the IPHI and MYRRHA injectors. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3096 EP - 3099 KW - network KW - rfq KW - LEBT KW - solenoid KW - proton DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPTS006 UR - http://jacow.org/ipac2019/papers/wepts006.pdf ER - TY - CONF AU - Chauvin, N. AU - Bazin, N. AU - Chel, S. AU - Du, L. AU - Plouin, J. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Beam Dynamics Errors Studies for the IFMIF-DONES SRF-LINAC J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The goal of the IFMIF-DONES (International Fusion Materials Irradiation Facility-DEMO Oriented Neutron Source) project is to build an irradiation facility that will provide a sufficient neutron flux to study and characterize structure materials foreseen for future fusion power plant. In order to accelerate the required 125mA/40 MeV continuous deuteron beam from 5 MeV to 40 MeV, a superconducting radio-frequency (SRF) linac, housed in five cryomodules, is proposed. The design is based on two beta families (β=0.11 and β=0.17) of half-wave resonators (HWR) at 175MHz. The transverse focusing is achieved using one solenoid coil per focusing period. This paper presents the extensive multiparticle beam dynamics simulations that have been performed to adapt the beam along the SRF-linac in such a high space charge regime. As one of the constraints of the IFMIF linac is a low level of beam losses, specific optimizations have been done to minimize the beam occupancy in the line (halo). A Monte Carlo error analysis has also been carried out to study the effects of misalignments or field imperfections (static errors) and also vibrations or power supplies ripple (dynamic errors). The results of these errors studies are presented and discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3103 EP - 3105 KW - linac KW - SRF KW - solenoid KW - cryomodule KW - cavity DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPTS010 UR - http://jacow.org/ipac2019/papers/wepts010.pdf ER - TY - CONF AU - De Maria, R. AU - Andersson, J. AU - Dalena, B. AU - Field, L. AU - Giovannozzi, M. AU - Hermes, P.D. AU - Hoimyr, N. AU - Iadarola, G. AU - Kostoglou, S. AU - Maclean, E.H. AU - McIntosh, E. AU - Mereghetti, A. AU - Molson, J. AU - Olsen, V.K.B. AU - Pellegrini, D. AU - Persson, T. AU - Pugnat, T. AU - Schwinzerl, M. AU - Sjobak, K.N. AU - Zacharov, I. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - SixTrack Version 5: Status and New Developments J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - SixTrack Version 5 is a major SixTrack release that introduces new features, with improved integration of the existing ones, and extensive code restructuring. New features include dynamic-memory management, scattering-routine integration, a new initial-condition module, and reviewed post-processing methods. Existing features like on-line aperture checking and Fluka-coupling are now enabled by default. Extensive performance regression tests have been developed and deployed as part of the new-release generation. The new features of the tracking environment developed for the massive numerical simulations will be discussed as well. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3200 EP - 3203 KW - simulation KW - electron KW - scattering KW - collimation KW - HOM DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPTS043 UR - http://jacow.org/ipac2019/papers/wepts043.pdf ER - TY - CONF AU - Ferrand, G. AU - Baron, Y. AU - Bouaziz, S. AU - Boulch, C. AU - Chirpaz-Cerbat, D. AU - Cubizolles, R. AU - Fayette, E. AU - Gohier, F. AU - Guiho, P. AU - Ladegaillerie, S. AU - Lotode, A. AU - Lussignol, Y. AU - Madec, C. AU - Monnereau, G. AU - Pichoff, N. AU - Piquet, O. AU - Servouin, C. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Results of CEA Tests of SARAF Couplers Prototypes J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - CEA is committed to delivering a Medium Energy Beam Transfer line and a superconducting linac (SCL) for SARAF accelerator in order to accelerate 5 mA beam of either protons from 1.3 MeV to 35 MeV or deuterons from 2.6 MeV to 40 MeV. The SCL consists in 4 cryomodules. The first two cryomodules host 6 and 7 half-wave resonator (HWR) low beta cavities (β = 0.09) at 176 MHz. The last two identical cryomodule will host 7 HWR high-beta cavities (β = 0.18) at 176 MHz. The maximal required power to be transmitted to the beam is 11.4 kW for high-beta cavity couplers. This document presents the results of the coupler tests and conditioning. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3382 EP - 3384 KW - vacuum KW - cavity KW - EPICS KW - linac KW - controls DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPTS118 UR - http://jacow.org/ipac2019/papers/wepts118.pdf ER - TY - CONF AU - Chancé, A. AU - Li, X. AU - Nghiem, P.A.P. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Avoiding Emittance Degradation When Transferring the Beam From and to a Plasma-Wakefield Stage J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The plasma-wakefield acceleration technique is known to provide a very strong accelerating gradient (GV/m), up to three orders of magnitude higher than the conventional RF acceleration technique. The drawback is a relatively higher energy spread and especially a huge beam divergence at the plasma exit, leading to an irremediable and strong emittance degradation right after its extraction from the plasma for transferring it to an application or another plasma stage. In this article, we determine the criteria to be achieved so as to minimize this emittance growth after pointing out all the parameters involved in its mechanism. Then the plasma down ramp profile is studied in a typical configuration of the EuPRAXIA project at 5 GeV. It turns out that no specific profile is needed. For minimizing emittance growth at beam extraction, it is enough to optimize the ramp length so that the Twiss parameter γ is minimized. Finally the design of an optimal transfer line allows showing that the emittance growth can be contained to less than 10% in realistic conditions when transferring the beam to a free electron laser. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3594 EP - 3597 KW - emittance KW - plasma KW - acceleration KW - focusing KW - quadrupole DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPGW006 UR - http://jacow.org/ipac2019/papers/thpgw006.pdf ER - TY - CONF AU - Weikum, M.K. AU - Akhter, T. AU - Alesini, D. AU - Alexandrova, A.S. AU - Anania, M.P. AU - Andreev, N.E. AU - Andriyash, I.A. AU - Aschikhin, A. AU - Audet, T. AU - Aßmann, R.W. AU - Bacci, A. AU - Barna, I.F. AU - Beaton, A. AU - Beck, A. AU - Beluze, A. AU - Bernhard, A. AU - Bielawski, S. AU - Bisesto, F.G. AU - Brandi, F. AU - Brinkmann, R. AU - Bründermann, E. AU - Bussmann, M.H. AU - Bussolino, G. AU - Büscher, M. AU - Chancé, A. AU - Chen, M. AU - Chiadroni, E. AU - Cianchi, A. AU - Clarke, J.A. AU - Cole, J. AU - Couprie, M.-E. AU - Croia, M. AU - Cros, B. AU - Crump, P.A. AU - Dattoli, G. AU - De Nicola, S. AU - Del Dotto, A. AU - Delerue, N. AU - Dias, J.M. AU - Dorda, U. AU - Fedele, R. AU - Ferran Pousa, A. AU - Ferrario, M. AU - Filippi, F. AU - Fiore, G. AU - Fonseca, R.A. AU - Galimberti, M. AU - Gallo, A. AU - Ghaith, A. AU - Giove, D. AU - Giribono, A. AU - Gizzi, L.A. AU - Grüner, F.J. AU - Habib, A.F. AU - Haefner, C. AU - Heinemann, T. AU - Hidding, B. AU - Holzer, B.J. AU - Hooker, S.M. AU - Hosokai, T. AU - Huebner, M. AU - Irman, A. AU - Jafarinia, F. AU - Jaroszynski, D.A. AU - Joshi, C. AU - Kaluza, M. AU - Kando, M. AU - Karger, O.S. AU - Karsch, S. AU - Khazanov, E. AU - Khikhlukha, D. AU - Knetsch, A. AU - Kocon, D. AU - Koester, P. AU - Kononenko, O.S. AU - Korn, G. AU - Kostyukov, I. AU - Kruchinin, K.O. AU - Labate, L. AU - Le Blanc, C. AU - Lechner, C. AU - Leemans, W. AU - Lehrach, A. AU - Li, X. AU - Libov, V. AU - Lifschitz, A. AU - Litvinenko, V. AU - Lu, W. AU - Lundh, O. AU - Maier, A.R. AU - Malka, V. AU - Manahan, G.G. AU - Mangles, S.P.D. AU - Marchetti, B. AU - Martinez de la Ossa, A. AU - Martins, J.L. AU - Mason, P.D. AU - Massimo, F. AU - Mathieu, F. AU - Maynard, G. AU - Mazzotta, Z. AU - Molodozhentsev, A.Y. AU - Mostacci, A. AU - Murphy, C.D. AU - Müller, A.-S. AU - Najmudin, Z. AU - Nghiem, P.A.P. AU - Nguyen, F. AU - Niknejadi, P. AU - Osterhoff, J. AU - Oumbarek Espinos, D. AU - Papadopoulos, D.N. AU - Patrizi, B. AU - Pattathil, R. AU - Petrillo, V. AU - Pocsai, M.A. AU - Poder, K. AU - Pompili, R. AU - Pribyl, L. AU - Pugacheva, D. AU - Romeo, S. AU - Rossetti Conti, M. AU - Rossi, A.R. AU - Rossmanith, R. AU - Roussel, E. AU - Sahai, A.A. AU - Sarri, G. AU - Schaper, L. AU - Scherkl, P. AU - Schramm, U. AU - Schroeder, C.B. AU - Scifo, J. AU - Serafini, L. AU - Sheng, Z.M. AU - Siders, C. AU - Silva, L.O. AU - Silva, T. AU - Simon, C. AU - Sinha, U. AU - Specka, A. AU - Streeter, M.J.V. AU - Svystun, E.N. AU - Symes, D. AU - Szwaj, C. AU - Tauscher, G.E. AU - Terzani, D. AU - Thompson, N. AU - Toci, G. AU - Tomassini, P. AU - Torres, R. AU - Ullmann, D. AU - Vaccarezza, C. AU - Vannini, M. AU - Vieira, J.M. AU - Villa, F. AU - Wahlstrom, C.-G. AU - Walczak, R. AU - Walker, P.A. AU - Wang, K. AU - Welsch, C.P. AU - Wiggins, S.M. AU - Wolfenden, J. AU - Xia, G.X. AU - Yabashi, M. AU - Zhu, J. AU - Zigler, A. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Status of the Horizon 2020 EuPRAXIA Conceptual Design Study J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The Horizon 2020 Project EuPRAXIA (European Plasma Research Accelerator with eXcellence In Applications) is producing a conceptual design report for a highly compact and cost-effective European facility with multi-GeV electron beams accelerated using plasmas. EuPRAXIA will be set up as a distributed Open Innovation platform with two construction sites, one with a focus on beam-driven plasma acceleration (PWFA) and another site with a focus on laser-driven plasma acceleration (LWFA). User areas at both sites will provide access to FEL pilot experiments, positron generation and acceleration, compact radiation sources, and test beams for HEP detector development. Support centres in four different countries will complement the pan-European implementation of this infrastructure. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3638 EP - 3642 KW - plasma KW - laser KW - electron KW - acceleration KW - site DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPGW026 UR - http://jacow.org/ipac2019/papers/thpgw026.pdf ER - TY - CONF AU - Kubytskyi, V. AU - Baynar, E. AU - Bruni, C. AU - Cassou, K. AU - Chaumat, V. AU - Delerue, N. AU - Demailly, J. AU - Douillet, D. AU - Garzella, D. AU - Guilbaud, O. AU - Jenzer, S. AU - Kazamias, S. AU - Lucas, B. AU - Maynard, G. AU - Neveu, O. AU - Pittman, M. AU - Prazeres, R. AU - Purwar, H. AU - Ros, D. AU - Wang, K. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Laser-Plasma Acceleration Modeling Approach in the Case of ESCULAP Project. J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - Objective of ESCULAP project is the experimental study of Laser-Plasma Acceleration (LPA) of relativistic electron bunch from photo-injector in 10 cm length plasma cell *. In parallel, numerical tools have been developed in order to optimize the setup configuration and the analysis of the expected results. The most important issue when dealing with numerical simulation over such large interaction distances is to obtain a good accuracy at a limited computing cost in order to be able to perform parametric studies. Reduction of the computational cost can be obtained either by using state-of-the-art numerical technics and/or by introducing adapted approximation in the physical model. Concerning LPA, the relevant Maxwell-Vlasov equations can be numerically solved by Particle-In-Cell (PIC) methods without any additional approximation, but can be very computationally expensive. On the other hand, the quasi-static approximation ***, which yields a drastic reduction of the computational cost, appears to be well adapted to the LPA regime. In this paper we present a detailed comparison of the performance, in terms of CPU, of LPA calculations and of the accuracies of their results obtained either with a highly optimized PIC code (FBPIC **) or with the well known quasi-static code WAKE ***. We first show that, when considering a sufficiently low charge bunch for which the beam loading effect can be neglected, the quasi-static approximation is fully validated in the LPA regime. The case of a higher bunch charge, with significant beam loading effects, has also been investigated using an enhanced version of WAKE, named WAKE-EP. Additionally, a cost evaluation, in terms of used energy per calculation, has also been done using the multi-CPU and multi-GPU versions of FBPIC. PB - JACoW Publishing CP - Geneva, Switzerland SP - 3723 EP - 3725 KW - plasma KW - electron KW - laser KW - acceleration KW - GPU DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPGW059 UR - http://jacow.org/ipac2019/papers/thpgw059.pdf ER - TY - CONF AU - Müller, H. AU - Allain, H. AU - Borceto, A. AU - Cho, E.J. AU - Daly, M. AU - Drago, G. AU - Golluccio, G. AU - Grafin, P. AU - Lucas, J. AU - Madur, A. AU - Munoz-Garcia, J.-E. AU - Quettier, L. AU - Reymond, H. AU - Roux, C. AU - Simon, H. AU - Sugita, K. AU - Valesi, G. AU - Van Den Boogaard, L.X. AU - Ventura, D. AU - Winkler, M. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Design, Production, and Testing of Superconducting Magnets for the Super-FRS J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The Super FRS is a two-stage in flight separator to be built next to the site of GSI, Darmstadt, Germany as part of FAIR (Facility for Anti-proton and Ion Research). Its purpose is to create and separate rare isotope beams and to enable the mass measurement also for very short lived nuclei. Due to its three branches a wide variety of experiments can be carried out in frame of the NUSTAR collaboration. Due to the large acceptance needed, the magnets of the Super-FRS have to have a large aperture and therefore only a superconducting solution is feasible. A superferric design with superconducting coils was chosen in which the magnetic field is shaped by an iron yoke. For the dipoles this iron yoke is at warm and only the coils are incorporated in a cryostat. The multiplets, assemblies of quadrupoles and higher order multipole magnets, are completely immersed in a liquid Helium bath. With the exception of special branching dipoles all superconducting magnets of Super-FRS have been contracted and are being built by Elytt in Spain (dipoles) and ASG in Italy (multiplets). The cold test of all magnets will take place in a dedicated test facility at CERN. This contribution will present the status of manufacturing of dipoles and multiplets, and also gives a short overview on the test facility. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4128 EP - 4131 KW - dipole KW - quadrupole KW - cryogenics KW - octupole KW - superconducting-magnet DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPTS011 UR - http://jacow.org/ipac2019/papers/thpts011.pdf ER - TY - CONF AU - Pichoff, N. AU - Berkovits, D. AU - Duperrier, R.D. AU - Ferrand, G. AU - Gastineau, B. AU - Gougnaud, F. AU - Jacquemet, M. AU - Luner, J. AU - Madec, C. AU - Perry, A. AU - Piquet, O. AU - Plaisant, Th. AU - Reinfeld, E. AU - Senée, F. AU - Uriot, D. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - The SARAF-LINAC Project 2019 Status J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - SNRC and CEA collaborate to the upgrade of the SARAF accelerator to 5 mA CW 40 MeV deuteron and proton beams (Phase 2). CEA is in charge of the design, construction and commissioning of the MEBT line and the superconducting linac (SARAF-LINAC Project). The prototypes of the 176 MHz NC rebuncher, SC cavities, RF coupler and SC solenoid-Package have been tested recently. Meanwhile, the cryomodules technical specifications have been written and called for tender. This paper presents the status of the SARAF-LINAC Project at April 2019. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4352 EP - 4355 KW - linac KW - MEBT KW - cavity KW - cryomodule KW - status DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPTS116 UR - http://jacow.org/ipac2019/papers/thpts116.pdf ER - TY - CONF AU - Ferrand, G. AU - Carbonnier, P. AU - Fayette, E. AU - Jullien, G. AU - Ladegaillerie, S. AU - Leseigneur, F. AU - Madec, C. AU - Maurice, L. AU - Misiara, N. AU - Pichoff, N. AU - Piquet, O. AU - Pérolat, A. AU - Servouin, C. AU - Zhao, L. AU - Éozénou, F. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Results of CEA Tests of SARAF Cavities Prototypes J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - CEA is committed to delivering a Medium Energy Beam Transfer line and a superconducting linac (SCL) for SARAF accelerator in order to accelerate 5mA beam of either protons to 35 MeV or deuterons to 40 MeV. The SCL consists in 4 cryomodules. The first two cryomodules host 6 & 7 half-wave resonator (HWR) low beta cavities (β = 0.09) at 176 MHz, and the last two crymodules host 7 HWR medium beta cavities (β = 0.18). The low beta prototype was qualified, the medium beta is being qualified. The results of the RF tests will be presented in this poster. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4356 EP - 4358 KW - cavity KW - pick-up KW - target KW - linac KW - detector DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-THPTS117 UR - http://jacow.org/ipac2019/papers/thpts117.pdf ER -