TY  - CONF
AU  - Ferrario, M.
AU  - Aßmann, R.W.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - From Dreams to Reality: Prospects for Applying Advanced Accelerator Technology to Next Generation Scientific User Facilities
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Recent years have seen spectacular progress in the development of innovative acceleration methods that are not based on traditional RF accelerating structures. These novel developments are at the interface of laser, plasma and accelerator physics and may potentially lead to much more compact and economical accelerator facilities. While primarily focusing on the ability to accelerate charged particles with much larger gradients than traditional RF, these new techniques have yet to demonstrate comparable performances to RF in terms of both beam parameters or reproducibility. To guide the developments beyond the necessary basic R&D and concept validations, a common understanding and definition of required performance and beam parameters for an operational user facility is now needed. These innovative user facilities can include "table-top" light sources, medical accelerators, industrial accelerators or even high-energy colliders. The talk will review the most promising developments in new acceleration methods, it will present the status of ongoing projects including the EU project EuPRAXIA and will identify the set of required specifications for the application under consideration.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1
EP  - 5
KW  - plasma
KW  - electron
KW  - laser
KW  - acceleration
KW  - wakefield
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOXPLM2
UR  - http://jacow.org/ipac2019/papers/moxplm2.pdf
ER  - 

TY  - CONF
AU  - Biagini, M.E.
AU  - Antonelli, M.
AU  - Bacci, A.
AU  - Bauce, M.
AU  - Blanco-García, O.R.
AU  - Boscolo, M.
AU  - Cesarini, G.
AU  - Chaikovska, I.
AU  - Chehab, R.
AU  - Ciarma, A.
AU  - Collamati, F.
AU  - Giribono, A.
AU  - Guiducci, S.
AU  - Liuzzo, S.M.
AU  - Lucchesi, D.
AU  - Pastrone, N.
AU  - Raimondi, P.
AU  - Vaccarezza, C.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Positron Driven Muon Source for a Muon Collider: Recent Developments
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The design of a future multi-TeV muon collider needs new ideas to overcome the technological challenges related to muon production, cooling, accumulation and acceleration. The Low Emittance Muon Accelerator (LEMMA) concept *,** presents in this paper an upgraded layout of a positron driven muon source. The positron beam, stored in a ring with high energy acceptance and low emittance, is extracted and driven in a push-pull configuration to a multi-target system, to produce muon pairs at threshold on the target’s electrons. This solution alleviates the issues related to the power deposited and the integrated Peak Energy Density Deposition on the targets. Muons produced in the multi-target system will then be accumulated in many parallel rings before acceleration and injection in the collider. A special multi-target line lattice has been designed to cope with the focusing of both the positron and muon beams. Studies on the number, material and thickness of the targets have been carried out. A general layout of the overall scheme and a description is presented, as well as plans for future R&D.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 49
EP  - 52
KW  - target
KW  - emittance
KW  - damping
KW  - collider
KW  - positron
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOZZPLS2
UR  - http://jacow.org/ipac2019/papers/mozzpls2.pdf
ER  - 

TY  - CONF
AU  - Behtouei, M.
AU  - Faillace, L.
AU  - Migliorati, M.
AU  - Palumbo, L.
AU  - Spataro, B.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - New Analytical Derivation of Group Velocity in TW Accelerating Structures
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Ultra high-gradient accelerating structures are needed for the next generation of compact light sources. In the framework of the Compact Light XLS project, we are studying a high harmonic traveling-wave accelerating structure operating at a frequency of 35.982 GHz, in order to linearize the longitudinal space phase. In this paper, we propose a new analytical approach for the estimation of the group velocity in the structure and we compare it with numerical electromagnetic simulations that are carried out by using the code HFSS in the frequency domain.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 155
EP  - 158
KW  - cavity
KW  - dipole
KW  - simulation
KW  - polarization
KW  - coupling
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOPGW030
UR  - http://jacow.org/ipac2019/papers/mopgw030.pdf
ER  - 

TY  - CONF
AU  - Blanco-García, O.R.
AU  - Antonelli, M.
AU  - Biagini, M.E.
AU  - Boscolo, M.
AU  - Cesarini, G.
AU  - Ciarma, A.
AU  - Collamati, F.
AU  - Guiducci, S.
AU  - Li Voti, R.
AU  - Raimondi, P.
AU  - Vaccarezza, C.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Multi-Target Lattice for Muon Production From e⁺ Beam Annihilation on Target
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The Low Emittance Muon Accelerator~(LEMMA) aims at producing small emittance muons from positron annihilation with electrons in a target. Given the low cross section of the production process, a large number of positrons on the target are required, exposing it to high power deposition and the beam to large degradation because of multiple scattering and bremstrahlung. A multi-target IP, and multi-IP line has been studied to reduce the power deposition per target and the degradation of the positron beam while preserving the number of muon pairs produced. The lattice copes with the focusing and transport of three beams at two different energies, the positron beam at 45 GeV, and µ⁺+ and µ⁻ beams at 22.5~GeV. Studies on the beam dynamics, number of targets, material and thickness of the targets are reported in this paper.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 578
EP  - 581
KW  - target
KW  - positron
KW  - emittance
KW  - lattice
KW  - site
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOPRB003
UR  - http://jacow.org/ipac2019/papers/moprb003.pdf
ER  - 

TY  - CONF
AU  - Pompili, R.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Focusing of High-Brightness Electron Beams with Active-Plasma Lenses
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Plasma-based technology promises a tremendous reduction in size of accelerators used for research, medical, and industrial applications, making it possible to develop tabletop machines accessible for a broader scientific community. By overcoming current limits of conventional accelerators and pushing particles to larger and larger energies, the availability of strong and tunable focusing optics is mandatory also because plasma-accelerated beams usually have large angular divergences. In this regard, active-plasma lenses represent a compact and affordable tool to generate radially symmetric magnetic fields several orders of magnitude larger than conventional quadrupoles and solenoids. However, it has been recently proved that the focusing can be highly nonlinear and induce a dramatic emittance growth. Here, we present experimental results showing how these nonlinearities can be minimized and lensing improved. These achievements represent a major breakthrough toward the miniaturization of next-generation focusing devices.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 601
EP  - 605
KW  - plasma
KW  - emittance
KW  - focusing
KW  - electron
KW  - experiment
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-MOPRB013
UR  - http://jacow.org/ipac2019/papers/moprb013.pdf
ER  - 

TY  - CONF
AU  - Nause, A.N.
AU  - Friedman, A.
AU  - Fukasawa, A.
AU  - Rosenzweig, J.B.
AU  - Roussel, R.J.
AU  - Spataro, B.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - First Operation of a Hybrid e-Gun at the Schlesinger Center for Compact Accelerators in Ariel University
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A novel hybrid photo injector was designed and partially tested at the UCLA Particle Beam Physics Laboratory. It was later commissioned at Ariel University in Israel as an on-going collaboration between the two universities. This unique, new generation design provides a radically simpler approach to RF feeding of a gun/buncher system, leading to a much shorter beam via velocity bunching owed to an attached traveling wave section of the photo-injector. This design results in better performance in beam parameters, providing a high quality electron beam, with energy of 6 MeV, emittance of app 3 μm, and a 150 fs pulse duration at up to 1 nC per pulse. The Hybrid gun is driven by a SLAC XK5 Klystron as the high power RF source, and third harmonic of a fs level IR Laser amplifier (266 nm) to drive the Cathode. The unique e-gun will produce an electron pulse for a THz FEL, which will operate at the super-radiance regime, and therefore requires extraordinary beam properties. This paper briefly describes the gun and presents initial operational results from the gun and its sub-systems.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1171
EP  - 1174
KW  - gun
KW  - laser
KW  - electron
KW  - solenoid
KW  - klystron
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUXXPLM3
UR  - http://jacow.org/ipac2019/papers/tuxxplm3.pdf
ER  - 

TY  - CONF
AU  - D'Auria, G.
AU  - Aicheler, M.
AU  - Aksoy, A.A.
AU  - Alesini, D.
AU  - Apsimon, R.
AU  - Arnesano, J.M.
AU  - Bellaveglia, M.
AU  - Bernhard, A.
AU  - Bosco, F.
AU  - Buonomo, B.
AU  - Burt, G.
AU  - Calvi, M.
AU  - Cardelli, F.
AU  - Castaneda Cortes, H.M.
AU  - Castilla, A.
AU  - Clarke, J.A.
AU  - Croia, M.
AU  - Cross, A.W.
AU  - Dattoli, G.
AU  - Di Mitri, S.
AU  - Diomede, M.
AU  - Dowd, R.T.
AU  - Dunning, D.J.
AU  - Fang, W.D.
AU  - Faus-Golfe, A.
AU  - Ferrario, M.
AU  - Ficcadenti, L.
AU  - Gallo, A.
AU  - Gazis, E.N.
AU  - Gazis, N.
AU  - Geometrante, R.
AU  - Gethmann, J.
AU  - Giribono, A.
AU  - Goryashko, V.A.
AU  - Han, Y.
AU  - Jacewicz, M.
AU  - Janssen, X.J.A.
AU  - Kokole, M.
AU  - Latina, A.
AU  - Liu, X.
AU  - Luiten, O.J.
AU  - Marcos, J.
AU  - Marín, E.
AU  - Mostacci, A.
AU  - Mutsaers, P.H.A.
AU  - Muñoz Horta, R.
AU  - Nguyen, F.
AU  - Palumbo, L.
AU  - Petralia, A.
AU  - Piersanti, L.
AU  - Priem, J.M.A.
AU  - Pérez, F.
AU  - Rochow, R.A.
AU  - Rossi, C.
AU  - Ruber, R.J.M.Y.
AU  - Schmidt, T.
AU  - Schulte, D.
AU  - Spataro, B.
AU  - Stapnes, S.
AU  - Stragier, X.F.D.
AU  - Taylor, G.
AU  - Thompson, N.
AU  - Vaccarezza, C.
AU  - Wu, X.W.
AU  - Wuensch, W.
AU  - Zhang, K.
AU  - Zhang, L.
AU  - Zhu, D.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - The CompactLight Design Study 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 H₂020 CompactLight Project (www. CompactLight.eu) aims at designing the next generation of compact X-rays Free-Electron Lasers, relying on very high gradient accelerating structures (X-band, 12 GHz), the most advanced concepts for bright electron photo injectors, and innovative compact short-period undulators. Compared to existing facilities, the proposed facility will benefit from a lower electron beam energy, due to the enhanced undulators performance, and will be significantly more compact, with a smaller footprint,  as a consequence of the lower energy and the high-gradient X-band structures. In addition, the whole infrastructure will also have a lower electrical power demand as well as lower construction and running costs.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1756
EP  - 1759
KW  - FEL
KW  - linac
KW  - electron
KW  - undulator
KW  - brightness
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUPRB032
UR  - http://jacow.org/ipac2019/papers/tuprb032.pdf
ER  - 

TY  - CONF
AU  - Alesini, D.
AU  - Cardelli, F.
AU  - Castorina, G.
AU  - Croia, M.
AU  - Diomede, M.
AU  - Ferrario, M.
AU  - Gallo, A.
AU  - Giribono, A.
AU  - Spataro, B.
AU  - Vaccarezza, C.
AU  - Vannozzi, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Design of a Full C-Band Injector for Ultra-High Brightness Electron Beam
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - High gradient rf photo-injectors have been a key development to enable several applications of high quality electron beams. They allow the generation of beams with very high peak current and low transverse emittance, satisfying the tight demands for free-electron lasers, energy recovery linacs, Compton/Thomson sources and high-energy linear colliders. In the paper we present the design of a new full C-band RF photo-injector recently developed in the framework of the XLS-Compact Light design study and of the EuPRAXIA@SPARC_LAB proposal. It allows to reach extremely good beam performances in terms of beam emittance (at the level of few hundreds nm), energy spread and peak current. The photo-injector is based on a very high gradient (>200 MV/m) ultra-fast (RF pulses <200 ns) C-band RF gun, followed by two C band TW structures. Different types of couplers for the 1.6 cell RF gun have been considered and also a new compact low pulsed heating coupler working on the TM020 mode on the full cell has been proposed. In the paper we report the design criteria of the gun, the powering system, and the results of the beam dynamics simulations. We also discuss the case of 1 kHz repetition rate.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1979
EP  - 1982
KW  - gun
KW  - emittance
KW  - cathode
KW  - klystron
KW  - brightness
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUPTS024
UR  - http://jacow.org/ipac2019/papers/tupts024.pdf
ER  - 

TY  - CONF
AU  - Salvant, B.
AU  - Amorim, D.
AU  - Antipov, S.A.
AU  - Arsenyev, S.
AU  - Beck, M.S.
AU  - Biancacci, N.
AU  - Brüning, O.S.
AU  - Campelo, J.V.
AU  - Carideo, E.
AU  - Caspers, F.
AU  - Dalascu, T.
AU  - Farricker, A.
AU  - Grudiev, A.
AU  - Kaltenbacher, T.
AU  - Koukovini-Platia, E.
AU  - Kramer, P.
AU  - Lasheen, A.
AU  - Migliorati, M.
AU  - Mounet, N.
AU  - Métral, E.
AU  - Nagaoka, R.
AU  - Nasr Esfahani, N.
AU  - Persichelli, S.
AU  - Popovic, B.K.
AU  - Rijoff, T.L.
AU  - Rumolo, G.
AU  - Shaposhnikova, E.N.
AU  - Smaluk, V.V.
AU  - Spataro, B.
AU  - Vaccaro, V.G.
AU  - Vollinger, C.
AU  - Wang, N.
AU  - White, S.M.
AU  - Zannini, C.
AU  - Zotter, B.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Building the Impedance Model of a Real Machine
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A reliable impedance model of a particle accelerator can be built by combining the beam coupling impedances of all the components. This is a necessary step to be able to evaluate the machine performance limitations, identify the main contributors in case an impedance reduction is required, and study the interaction with other mechanisms such as optics nonlinearities, transverse damper, noise, space charge, electron cloud, beam-beam (in a collider). The main phases to create a realistic impedance model, and verify it experimentally, will be reviewed, highlighting the main challenges. Some examples will be presented revealing the levels of precision of machine impedance models that have been achieved.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2249
EP  - 2254
KW  - impedance
KW  - simulation
KW  - wakefield
KW  - coupling
KW  - cavity
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEYPLS1
UR  - http://jacow.org/ipac2019/papers/weypls1.pdf
ER  - 

TY  - CONF
AU  - Sabbatini, L.
AU  - Alesini, D.
AU  - Falone, A.
AU  - Gallo, A.
AU  - Pettinacci, V.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - The LATINO Project - An Italian Perspective on Connecting SMEs with Research Infrastructures
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The National Laboratories of Frascati (LNF) are the first Italian research facility for the study of nuclear and subnuclear physics with accelerators and are the largest laboratories of the Italian National Institute for Nuclear Physics (INFN), the public body whose mission is theoretical, experimental and technological research in subnuclear, nuclear and astroparticle physics. LNF have an extensive experience in designing, installation, testing and operation of particle accelerators and the related technologies. The competences range over almost all the technologies related to particle accelerators, including radio frequency, vacuum, magnets and mechanics. LNF have always had a close relationship with the regional and national industries, stimulating the development and growth of the industrial background by means of close collaboration with partners. The LATINO (a Laboratory in Advanced Technologies for INnOvation) project is an initiative that fits into this path and aims to strengthen this relationship, allowing access to the technologies, instruments and competences not otherwise available to the enterprises. A modern vision of advanced economies recommends the Technology Transfer from the research world to the productive activities through the creation of research infrastructures as the most efficient system for generating innovation and economic development [1-3]. The Regione Lazio, despite hosting centres of excellence, has a delay in the establishment of this kind of infrastructures.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2277
EP  - 2279
KW  - vacuum
KW  - laser
KW  - instrumentation
KW  - radio-frequency
KW  - operation
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEZPLM1
UR  - http://jacow.org/ipac2019/papers/wezplm1.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  - Esposito, L.S.
AU  - Addesa, F.M.
AU  - Afonin, A.G.
AU  - Bestman, P.
AU  - Borg, J.E.
AU  - Butcher, M.E.J.
AU  - Calviani, M.
AU  - Chesnokov, Y.A.
AU  - Denisov, A.S.
AU  - Di Castro, M.
AU  - Donzé, M.
AU  - Durum, A.A.
AU  - Fraser, M.A.
AU  - Galluccio, F.
AU  - Garattini, M.
AU  - Gavrikov, Y.
AU  - Gilardoni, S.S.
AU  - Goddard, B.
AU  - Hall, G.
AU  - Iacoangeli, F.
AU  - Ivanov, Yu.M.
AU  - James, T.
AU  - Kain, V.
AU  - Kovalenko, A.D.
AU  - Koznov, M.A.
AU  - Lendaro, J.
AU  - Maisheev, V.A.
AU  - Malyarenko, L.G.
AU  - Masi, A.
AU  - Murtas, F.
AU  - Natochii, A.
AU  - Pari, M.
AU  - Pesaresi, M.
AU  - Prieto, J.
AU  - Rossi, R.
AU  - Sandomirskiy, Yu.E.
AU  - Scandale, W.
AU  - Seidenbinder, R.
AU  - Serrano Galvez, P.
AU  - Skorobogatov, V.
AU  - Stoel, L.S.
AU  - Taratin, A.M.
AU  - Velotti, F.M.
AU  - Yanovich, A.A.
AU  - Zhovkovska, V.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Crystal for Slow Extraction Loss-Reduction of the SPS Electrostatic Septum
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The use of a bent crystal was investigated in order to reduce the losses at the CERN Super Proton Synchrotron (SPS) electrostatic septa (ZS) during the slow extraction of 400 GeV protons toward the North Area. The crystal, installed a few meters upstream the ZS, bends protons that would otherwise impinge on the ZS wires. Since particle deflection with good efficiency is achieved only when the crystal lattice is aligned within ~10 urad to the trajectory of the particles (at p = 400 GeV/c), a compact goniometer was built to allow the correct angular alignment of the crystal with respect to the incoming beam with a precision of few urad. In this paper, we report on the crystal features measured during a dedicated beam test by the UA9 experimental installation in the CERN H8 beam line. Details of the goniometer and its installation are also reported. The first results achieved during dedicated Machine Development (MD) sessions are finally presented.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2379
EP  - 2382
KW  - extraction
KW  - proton
KW  - experiment
KW  - ECR
KW  - alignment
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPMP028
UR  - http://jacow.org/ipac2019/papers/wepmp028.pdf
ER  - 

TY  - CONF
AU  - Cioeta, F.
AU  - Alesini, D.
AU  - Ciambrella, M.
AU  - Cortis, D.
AU  - Marongiu, M.
AU  - Mostacci, A.
AU  - Pettinacci, V.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - A Numerical Analysis to Choose the Most Performing Optical Transition Radiation Screen
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Optical Transition Radiation (OTR) screen represents the most appropriate instrument to measure and verify the characteristics of a beam spot size produced by a particle accelerator. In order to measure such beam properties, OTR screens have to sustain thermal and mechanical stresses due to the energy that several bunches deposit. Owing to these requirements, it is essential to identify the more suitable material to optimize the OTR dimensions and to get reliable measures from the diagnostic system. In this paper, we describe a numerical procedure to choose the most performing material taking into account the physical requirements of a multi-bunch high brightness. The procedure is based on a dedicated ANSYS script able to evaluate the fatigue life time of the material considering a high number of thermal cycles generated by several bunches. The main characteristic of this script is the capability to simulate the real thermal and mechanical effect on the target that the hitting particle beam produces. The numerical procedure has been applied to compare the performance of three relevant materials-Aluminium, Silicon and Graphite simulating a beam hitting with well-known parameters.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2518
EP  - 2521
KW  - target
KW  - electron
KW  - radiation
KW  - brightness
KW  - site
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPGW022
UR  - http://jacow.org/ipac2019/papers/wepgw022.pdf
ER  - 

TY  - CONF
AU  - Martinelli, V.
AU  - Alesini, D.
AU  - Bacci, A.
AU  - Ferrario, M.
AU  - Giribono, A.
AU  - Pioli, S.
AU  - Vaccarezza, C.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - High Level Software for Beam 6D Phase Space Characterization
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Operation of modern particle accelerators require high qualitity beams and conseguently sensitive diagnostic system in order to monitories and characterize the beam during the acceleration and transport. A turn-key high level software BOLINA (Beam Orbit for Linear Accelerators) has been developed to fully characterise the 6D beam phase space in order to help operator during commissioning with an easily scalable suite for any high brightness LINAC. In this work will be presented the diagnostic toolkit is presented as designed for the ELI-NP Gamma Beam System (GBS) a radiation source based on the Compton back scattering effect able to provide tunable gamma rays in the 0.2-20 MeV range with narrow bandwidth (0.3% and a high spectral density (10⁴ photons/sec/eV) by the Compton backscattering effect. BOLINA suite is design to be machine independent, thanks to the file exchanges with the EPICS based control system. Simulation of raw data of the ELI-NP-GBS accelerator has been used to test the capabilities of the diagnostic toolkit.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2522
EP  - 2525
KW  - simulation
KW  - emittance
KW  - diagnostics
KW  - gun
KW  - quadrupole
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPGW025
UR  - http://jacow.org/ipac2019/papers/wepgw025.pdf
ER  - 

TY  - CONF
AU  - Faillace, L.
AU  - Behtouei, M.
AU  - Dolgashev, V.A.
AU  - Spataro, B.
AU  - Torrisi, G.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Compact Ultra High-Gradient Ka-Band Accelerating Structure for Research, Medical and Industrial Applications
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Technological advancements are strongly required to fulfil demands for new accelerators devices from the compact or portable devices for radiotherapy to mo-bile cargo inspections and security, biology, energy and environmental applications, and ultimately for the next generation of colliders. In the frame of the collab-oration with INFN-LNF, SLAC (USA) we are working closely on design studies, fabrication and high-power operation of Ka-band accelerating structures. In par-ticular, new manufacturing techniques for hard-copper structures are being investigated in order to determine the maximum sustainable gradients above 150 MV/m and extremely low probability of RF breakdown. In this paper, the preliminary RF and mechanical design as well as beam dynamics estimations for a Ka-Band accelerating structure at 35 GHz are presented together with discussions on practical accelerating gradients and maximum average beam current throughput.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2842
EP  - 2845
KW  - linac
KW  - electron
KW  - accelerating-gradient
KW  - operation
KW  - gun
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB020
UR  - http://jacow.org/ipac2019/papers/weprb020.pdf
ER  - 

TY  - CONF
AU  - Torrisi, G.
AU  - Castorina, G.
AU  - Celona, L.
AU  - Dolgashev, V.A.
AU  - Faillace, L.
AU  - Gammino, S.
AU  - Leonardi, O.
AU  - Mauro, G.S.
AU  - Sorbello, G.
AU  - Spataro, B.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Low Power RF Test of a Quadrupole-free X-Band Mode Launcher for High Brightness Applications
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - In this work we present the low power RF characterization of a novel TM01 X-band mode launcher for the new generation of high brightness RF photo-injectors. The proposed mode launcher exploits a fourfold symmetry which minimizes both the dipole and the quadrupole fields in order to mitigate the emittance growth in the early stages of the acceleration process. Two identical aluminum mode launchers have been assembled and measured in back-to-back configurations for three different central waveguide lengths. From the back-to-back results we infer the performance of each mode launcher. The low power RF test, performed at the Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Sud (INFN-LNS), validate both the numerical simulations and the quality of fabrication. An oxygen-free high-conductivity copper version of the device is being manufactured for high power and ultra high vacuum tests that are planned to be conducted at SLAC
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2856
EP  - 2859
KW  - GUI
KW  - brightness
KW  - quadrupole
KW  - simulation
KW  - electron
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB024
UR  - http://jacow.org/ipac2019/papers/weprb024.pdf
ER  - 

TY  - CONF
AU  - Arnesano, J.M.
AU  - Diomede, M.
AU  - Ficcadenti, L.
AU  - Marongiu, M.
AU  - Mostacci, A.
AU  - Palumbo, L.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Design of an X-Band Constant Impedance LINAC for Compact Light Project
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Within the framework of Horizon 2020 project, Compact Light, in order to provide a high performance, high-gradient X-band technology, for the new generation of hard X-ray FEL, a travelling wave (TW) Linac, working on 2pi/3 mode at 11.9952 GHz, fed by two types of asymmetrically couplers, has been designed. The design was performed using CST Microwave Studio frequency domain solver. First, simulations have been conduct in order to obtain the best trade-off between single cell’s parameters, varying iris aperture. Then, the both couplers, with and without pumping port, has been tuned to avoid reflections at the input port. Finally, the entire structure, with 5 cells, was simulated. The main structure parameters will be present and we will also show and discuss the acceleranting gradient obtained vary with linac lenght and input power.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3055
EP  - 3058
KW  - simulation
KW  - linac
KW  - quadrupole
KW  - impedance
KW  - framework
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB105
UR  - http://jacow.org/ipac2019/papers/weprb105.pdf
ER  - 

TY  - CONF
AU  - Marongiu, M.
AU  - Bisesto, F.G.
AU  - Chiadroni, E.
AU  - Cianchi, A.
AU  - Di Pirro, G.
AU  - Franzini, G.
AU  - Giribono, A.
AU  - Mostacci, A.
AU  - Palumbo, L.
AU  - Shpakov, V.
AU  - Stella, A.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Simulation of the Transition Radiation Transport Through an Optic System
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Optical Transition Radiation (OTR) screens are widely used for beam profile measurements. The radiation is emitted when a charged particle beam crosses the boundary between two media with different optical properties. The main advantages of OTR are the instantaneous emission process allowing fast single shot measurements (i.e. bunch by bunch measurements in a multi bunch machine), and the good linearity with the beam charge (if coherent effects can be neglected). Furthermore, OTR angular distribution strongly depends on beam energy. Since OTR screens are typically placed in several positions along the Linac to monitor beam envelope, one may perform a distributed energy measurement along the machine: this will be useful, for instance, during the commissioning phase of a machine. This paper deals with the studies of an algorithm to optimize the generation and the transport of the transition radiation through an optic system using the simulation tool Zemax. The algorithm, in combination with a particle tracking code (i.e. Elegant), will allow to simulate the radiation generated by a beam and, so, to take into account beam divergence and energy spread or chromatic effects in the optic system.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3059
EP  - 3062
KW  - radiation
KW  - simulation
KW  - electron
KW  - optics
KW  - diagnostics
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPRB106
UR  - http://jacow.org/ipac2019/papers/weprb106.pdf
ER  - 

TY  - CONF
AU  - Velotti, F.M.
AU  - Addesa, F.M.
AU  - Afonin, A.G.
AU  - Bestmann, P.
AU  - Borg, J.E.
AU  - Butcher, M.E.J.
AU  - Calviani, M.
AU  - Chesnokov, Y.A.
AU  - Denisov, A.S.
AU  - Di Castro, M.
AU  - Donzé, M.
AU  - Durum, A.A.
AU  - Esposito, L.S.
AU  - Fraser, M.A.
AU  - Galluccio, F.
AU  - Garattini, M.
AU  - Gavrikov, Y.
AU  - Gilardoni, S.S.
AU  - Goddard, B.
AU  - Hall, G.
AU  - Iacoangeli, F.
AU  - Ivanov, Yu.M.
AU  - James, T.
AU  - Kain, V.
AU  - Koznov, M.A.
AU  - Lendaro, J.
AU  - Maisheev, V.A.
AU  - Malyarenko, L.G.
AU  - Masi, A.
AU  - Mirarchi, D.
AU  - Murtas, F.
AU  - Pari, M.
AU  - Pesaresi, M.
AU  - Prieto, J.
AU  - Redaelli, S.
AU  - Rossi, R.
AU  - Sandomirskiy, Yu.E.
AU  - Scandale, W.
AU  - Seidenbinder, R.
AU  - Serrano Galvez, P.
AU  - Skorobogatov, V.
AU  - Stoel, L.S.
AU  - Yanovich, A.A.
AU  - Zamantzas, C.
AU  - Zhovkovska, V.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Demonstration of Loss Reduction Using a Thin Bent Crystal to Shadow an Electrostatic Septum During Resonant Slow Extraction
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A proof-of-principle experiment demonstrating the feasibility of using a thin, bent crystal aligned upstream of an extraction septum (ES) to increase the efficiency of the third-integer resonant slow extraction process has been carried out at the CERN Super Proton Synchrotron (SPS). With the primary aim of reducing the beam loss and induced radio-activation of the SPS, the crystal was aligned to both the beam and the septum to reduce by up to 40% the beam intensity impinging the ES and increase the intensity entering the external transfer line. In this contribution, we introduce the concept and the prototype system that was installed in 2018 before reporting in detail on the dedicated program of machine development studies carried out to characterise its performance and demonstrate operational feasibility. The performance reach and compatibility with other loss reduction techniques proposed to further increase the extraction efficiency, such as phase space folding with octupoles, is discussed in view of future high intensity operation.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3399
EP  - 3403
KW  - extraction
KW  - operation
KW  - septum
KW  - optics
KW  - experiment
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THXXPLM2
UR  - http://jacow.org/ipac2019/papers/thxxplm2.pdf
ER  - 

TY  - CONF
AU  - Sabbatini, L.
AU  - Alesini, D.
AU  - Falone, A.
AU  - Gallo, A.
AU  - Pettinacci, V.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - LATINO: A Laboratory in Advanced Technologies for Innovation
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - LATINO (a Laboratory in Advanced Technologies for INnOvation) is an open Research Infrastructure that will be hosted at the Frascati National Laboratories (LNF) of the Italian National Institute for Nuclear Physics (INFN). LATINO will allow the scientific community and the SMEs to get access to the technologies and competences developed for particle accelerators. The Infrastructure will be organized in four Laboratories: Radio Frequency, Vacuum and Thermal Treatments, Magnetic Measurements, Mechanical Integration. The list of the available instruments will include, besides others, a high power X-Band station to test cavities up to 50 Hz repetition rate and 200 MW input power, a network analyser to characterize microwave devices up to 100 GHz, a ultra high vacuum oven for thermal treatments and brazing, an outgassing measurement system to characterize vacuum materials, a stretched wire bench and a rotating coil for the magnetic field measurements of multipoles, environment and laser scanners. The regional and national industrial background comprises a remarkable number of highly qualified small and medium enterprises that could take advantage of the technologies offered by LATINO infrastructure to develop novel products within the Key Enabling Technologies and to get the access to new market segments. The Infrastructure will be fully operational at the beginning of 2020. For further information please visit www.latino.lnf.infn.it.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3466
EP  - 3468
KW  - vacuum
KW  - laser
KW  - controls
KW  - radio-frequency
KW  - operation
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPMP009
UR  - http://jacow.org/ipac2019/papers/thpmp009.pdf
ER  - 

TY  - CONF
AU  - Niknejadi, P.
AU  - D'Arcy, R.T.P.
AU  - Ferrario, M.
AU  - Garland, J.M.
AU  - Lindstrøm, C.A.
AU  - Mehrling, T.J.
AU  - Osterhoff, J.
AU  - Romeo, S.
AU  - Schaper, L.
AU  - Schmidt, B.
AU  - Tauscher, G.E.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - FLASHforward Findings for the EuPRAXIA Design Study and the Next-Generation of Compact Accelerator Facilities
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - FLASHForward, the exploratory FLASH beamline for Future-ORiented Wakefield Accelerator Research and Development, is a European pilot test bed facility for accelerating electron beams to GeV-levels in a few centimeters of ionized gas. The main focus is on the advancement of plasma-based particle acceleration technology through investigation of injection schemes, novel concepts and diagnostics, as well as benchmarking theoretical studies and simulations. Since the plasma wakefield will be driven by the optimal high-current-density electron beams extracted from the FLASH L-band Superconducting RF accelerator, FLASHForward has been in a unique position for studying and providing insight for the design study of next-generation light source and high energy physics facilities such as EuPRAXIA*. Summary of these findings and their broader impact is discussed here.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3619
EP  - 3623
KW  - plasma
KW  - wakefield
KW  - focusing
KW  - electron
KW  - laser
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPGW019
UR  - http://jacow.org/ipac2019/papers/thpgw019.pdf
ER  - 

TY  - CONF
AU  - Walker, P.A.
AU  - Aßmann, R.W.
AU  - Chiadroni, E.
AU  - Dorda, U.
AU  - Ferrario, M.
AU  - Marchetti, B.
AU  - Specka, A.
AU  - Walczak, R.
AU  - Weikum, M.K.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Facility Considerations for a European Plasma Accelerator Infrastructure (EuPRAXIA)
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - EuPRAXIA (European Plasma Research Accelerator with eXcellence In Applications) is a conceptual design study for a compact European infrastructure with multi-GeV electron beams based on plasma accelerators. The concept foresees two main experimental sites, one at INFN in Frascati and one at DESY in Hamburg. In Frascati, an RF injector based on S-band and X-band technology (electron energy up to 1 GeV) will be constructed and used as a drive beam for beam driven plasma acceleration (PWFA) with final electron beam energies up to 5 GeV. At DESY, the focus will be on laser driven plasma acceleration (LWFA) and an RF injector based on S-band technology (electron energy up to 240 MeV) or alternatively a plasma injector (electron energy up to 150 MeV) can be used before the beam is injected into the plasma accelerator for external LWFA and acceleration up to 5 GeV. A single stage approach based on LWFA with internal injection will also be pursued in a second beamline. User areas at both sites will provide access to FEL pilot experiments, positron generation, compact radiation sources, and test beams for HEP detector development. This contribution discusses facility space considerations for the future plasma accelerator research infrastructure of EuPRAXIA.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3635
EP  - 3637
KW  - plasma
KW  - laser
KW  - electron
KW  - site
KW  - positron
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPGW025
UR  - http://jacow.org/ipac2019/papers/thpgw025.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  - Van Dijk, M.W.U.
AU  - Banerjee, D.
AU  - Bernhard, J.
AU  - Brugger, M.
AU  - Charitonidis, N.
AU  - D'Alessandro, G.
AU  - Doble, N.
AU  - Gatignon, L.
AU  - Gerbershagen, A.
AU  - Montbarbon, E.
AU  - Moulson, M.
AU  - Rae, B.
AU  - Rosenthal, M.S.
AU  - Veit, B.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - The K12 Beamline for the KLEVER Experiment
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - The KLEVER experiment is proposed to run in the CERN ECN3 underground cavern from 2026 onward. The goal of the experiment is to measure BR(KL -> pi0 nu nu), which could yield information about potential new physics, by itself and in combination with the measurement of BR(K+ -> pi+ nu nu) of NA62. A full description will be given of the considerations in designing the new K12 beamline for KLEVER, as obtained from a purpose made simulation with FLUKA. The high intensities required by KLEVER, 2·10¹³ protons on target every 16.8s, with 5·10¹⁹ protons accumulated over 5~years, place stringent demands on adequate muon sweeping to minimize backgrounds in the detector. The target and primary dump need to be able to survive these demanding conditions, while respecting strict radiation protection criteria. A series of design choices will be shown to lead to a neutral beamline sufficiently capable of suppressing relevant backgrounds, such as photons generated by pi0 decays in the target, and Lambda -> npi0 decays, which mimic the signal decay.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3726
EP  - 3729
KW  - target
KW  - photon
KW  - detector
KW  - experiment
KW  - background
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPGW061
UR  - http://jacow.org/ipac2019/papers/thpgw061.pdf
ER  - 

TY  - CONF
AU  - Othman, M.A.K.
AU  - Dolgashev, V.A.
AU  - Haase, A.A.
AU  - Jawla, S.
AU  - Nanni, E.A.
AU  - Neilson, J.
AU  - Picard, J.F.
AU  - Schaub, S.C.
AU  - Spataro, B.
AU  - Tantawi, S.G.
AU  - Temkin, R.J.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Initial Results of High-Gradient Breakdown Tests for W-Band Accelerating Structures
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Emerging accelerator technology at mm-wave and THz frequencies has recently shown notable progress. Indeed, metallic and dielectric accelerating structures at THz frequencies are plausible candidates toward miniaturization of accelerators. RF breakdown in such structures is a major factor limiting their performance. Therefore, comprehensive analysis of RF breakdown physics in mm-wave accelerating structures is needed, which includes understanding of dependencies of the breakdown rate on geometric, electromagnetic and material properties. In this work we report on high power tests of a 110 GHz single-cell standing wave accelerating structure powered by a 1 MW gyrotron. The RF power is coupled from the gyrotron into the accelerating structure with a Gaussian to TM01 mode converter through a quasi-optical setup. We demonstrate coupling of 10 ns, 100s of kilowatt pulses into the structure using a fast switch and achieving ~150 MV/m accelerating gradients. Measurements of RF signals and field-emitted currents allow for complete comprehensive of the high-gradient behavior of W-band structures, including breakdown probability.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3769
EP  - 3771
KW  - cavity
KW  - experiment
KW  - electron
KW  - laser
KW  - vacuum
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPGW080
UR  - http://jacow.org/ipac2019/papers/thpgw080.pdf
ER  - 

TY  - CONF
AU  - Pioli, S.
AU  - Belli, M.
AU  - Beretta, M.M.
AU  - Buonomo, B.
AU  - Ciambrone, P.
AU  - Di Giulio, D.G.C.
AU  - Frasciello, O.
AU  - Valente, P.
AU  - Variola, A.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Novel FPGA-based Instrumentation for Personnel Safety Systems in Particle Accelerator Facility
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Personnel safety system for particle accelerator facility involves different devices to monitor gates, shielding doors, dosimetry stations, search and emergency buttons. In order to achieve the proper reliability, fail-safe and fail-proof capabilities, these systems are developed compliant with safety standards (like the IEC-61508 on ’Functional Safety’, ANSI N43.1 ’Radiation Safety for the design and operation of Particle Accelerator’ and NCRP report 88) involving stable technologies like electro-mechnaical relays and, recently, PLC. As part of the Singularity project at Frascati National Laboratories of INFN, this work will report benchmark of a new FPGA-based system from the design to the validation phase of the prototype currently operating as personnel safety system at the Beam Test Facility (BTF) of Dafne facility. This novel instrument is capable of: devices monitoring in real-time at 1 kHz, dual modular redundancy, fail-safe and fail-proof, multi-node distributed solution on optical link, radiation damage resistance and compliant with IEC-61508, ANSI N43.1 and NCRP report 88. The aim of this FPGA-based system is to illustrate the feasibility of FPGA technology in the field of personnel safety for particle accelerator in order to take advantage of a fully digital system integrated with facility control system, evaluate the related reliability and availability and realize a standard, scalable and flexible hardware solution also for other fields with similar requirements like machine protection systems.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3872
EP  - 3874
KW  - FPGA
KW  - controls
KW  - radiation
KW  - monitoring
KW  - operation
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-THPRB030
UR  - http://jacow.org/ipac2019/papers/thprb030.pdf
ER  -