Mr
Johannes Gebhard
(LMU Munich)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
We present a target positioning system based on an electrodynamic trap specifically designed for high-power laser plasma interactions. By applying an electro-optical damping technique, micron-precise positioning of isolated targets of arbitrary material and shape is enabled, ensuring reliable overlap with the laser focus. Results from a beamtime at the TPW [1] and two beamtimes at the...
Ans Pardons
(CERN)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
AWAKE is installed in the underground former CERN neutrino to Gran Sasso facility. Transforming the area to be compatible with the operation of a proton driven plasma wakefield experiment is challenging. The high energy of the drive beam (400GeV/c) causes radiation safety issues, but also fire safety, evacuation routes and integration of emergency equipment needed reassessment. Specifics of...
Dr
Kostyantyn Galaydych
(DESY)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
A dielectric-loaded linac powered by THz-pulses is one of the key parts of the "Attosecond X-ray Science: Imaging and Spectroscopy" (AXSIS) experiment at DESY, Hamburg. Like in conventional accelerators the AXSIS linac is designed to have the phase velocity equal to the speed of light and in this case it is realized by tuning of the dielectric layer width and the radius of the vacuum channel....
Ms
Gemma Costa
(LNF-INFN)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The plasma-based acceleration is an encouraging technique to overcome the limits in the conventional RF LINAC. A plasma accelerator is able to provide accelerating fields around hundreds of GeV/m, i.e. order of magnitude greater than RF structures, paving the way to accelerate particles to several MeV over a short distance (millimiter scale).
In this work, the characteristics of electron...
Aleksandr Gorn
(Budker Institute of Nuclear Physics, Novosibirsk, Russia)
25/09/2017, 19:30
WG8 - Advanced and novel accelerators for High Energy Physics
poster
The train of charged particle bunches is an effective driver for a plasma-based accelerator, but the amplitude of the excited wakefield strongly depends on the uniformity of plasma, in other words, the type of plasma source. For the train with N bunches relative uniformity must be better than 1/N, thus, the more bunches are in a beam, the higher are the requirements on plasma. One of the...
Dr
Xiangkun LI
(CEA/IRFU)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
Multi-GeV-class laser-plasma accelerating modules are key-components of laser-plasma accelerators, being used either as a booster of an upstream plasma or conventional injector or as modular acceleration sections of a multi-staged high energy plasma linac. Such a plasma module, operating in the quasi-linear regime, has been especially designed for the 5 GeV acceleration stage of the EuPRAXIA...
Mr
Marcello Rossetti Conti
(INFN Milano)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
Plasma driven particle accelerators represent the future of compact accelerating machines and Free Electron Lasers are going to benefit from these new technologies. One of the main issue of this new approach to FEL machines is the design of the transfer line needed for the matching of the plasma beam with the magnetic undulators. Despite the reduction of the chromaticity of plasma beams is one...
Ms
Alisa Healy
(The Cockcroft Institute)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
Terahertz-driven dielectric-lined waveguides (DLWs) have uses in electron manipulation; in particular deflection, acceleration, and focussing. A rectangular DLW has been optimised for deflection of 100 keV electrons using a THz pulse with a centre frequency 0.5 THz. A narrowband THz pulse is generated using a lithium niobate crystal and chirped pulse beating. Electron-THz interaction and...
Veronika K. Berglyd Olsen
(UiO Department of Physics)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
We investigate beam loading and emittance preservation for a high-charge electron beam being accelerated in quasi-linear plasma wakefield driven by a short proton beam. The structure of the wakefield is similar to that of a long, modulated proton beam. By selecting transverse and longitudinal electron beam parameters in order to appropriately load the wake, we show that the bulk of the...
Mr
Ángel Ferran Pousa
(DESY)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
With the experimental achievement of multi-GeV energies, the The use of external injection in plasma acceleration is attractive due to the high control over the electron beam parameters, which can be tailored to meet the plasma requirements and therefore preserve its quality during acceleration. However, using this technique requires an extremely fine synchronization between the driver and...
Mr
Willi Kuropka
(DESY Hamburg, University of Hamburg)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
In laser illuminated dieelectric accelerators (DLA) high acceleration gradients can be achieved, due to high damage thresholds of the materials at optical frequencies. This is a necessity in developing more compact particle accelerator technologies. The Accelerator on a CHip International Program funded by the Gordon and Betty Moore Foundation is researching such devices. DESY Hamburgs ARD...
Mr
Johannes Ding
(Technical University Darmstadt)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
High intensity laser driven ion sources are of great interest to researchers in the fields of tumor therapy, isochoric heating or energy loss measurements. The extremely low emittance, high luminosity, short pulse lengths and high field gradients, which allow for very short ion beamlines, make laser driven ion generation the ideal ion source for these applications.
In the context of the Laser...
Dr
Riccardo Pompili
(LNF)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
Plasma-based devices like accelerator modules and lenses for beam optics are of great interest in view of future compact accelerators.
Here we present a detailed study about their implementation at the SPARC_LAB facility in Frascati. In particular, we shape the driver bunch to have a donut-like shape, allowing to preserve the ultra-high brightness of the witness bunch that will be accelerated...
Leonida Antonio Gizzi
(PI)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
Demonstration of high quality laser-plasma acceleration is mandatory for future development of novel plasma-based radiation sources like the EuPRAXIA H2020 project. In this context we are developing a test electron beam-line based on laser-wakefield acceleration with the aim of driving a Free Electron Laser in the X-ray domain. Our developments include design of a novel injection and...
Mr
Mathias Hüther
(Max-Planck-Institut für Physik)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The AWAKE Experiment at CERN is world’s first proton-driven plasma wakefield accelerator aiming for acceleration of externally injected electrons in gradients up to the GeV/m scale.
The 12 cm long proton bunch from CERN’s Super Proton Synchotron propagates through a 10-m long laser induced plasma channel and is split into a train of microbunches on the order of the plasma wavelength by its...
Mr
Georg Alexander Becker
(University Jena, Germany)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
In order to gain more insights into laser driven ion acceleration experiments it is advisable to probe the laser target interaction, for example with an optical probe. Water droplets are ideal targets for this purpose, because the laser illuminated and the rear surface can be imaged simultaneously. However, strong light emission from the plasma typically outshines the probe.
To overcome this...
Leonida Antonio Gizzi
(PI)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
The construction of a novel Laser driven Light Ions Acceleration Line (L3IA) is progressing rapidly towards the operation, following the recent >100 TW scale upgrade of the ILIL-PW laser facility. The Line was designed following the pilot experimental activity carried out earlier at the same facility to define design parameters and to identify main components including target control and...
Diana Jahn
(Technische Universität Darmstadt)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
The Laser Ion Generation, Handling and Transport (LIGHT) collaboration makes a significant impact in the field of laser-driven ion acceleration. Within this collaboration, laser-driven ion acceleration is combined with conventional accelerator technology (see talk). One research topic within the LIGHT project is the improvement of the beam homogeneity and demonstrate the proton imaging...
Mr
Ke WANG
(LAL)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
The ESCULAP project joins the photo injector PHIL with the High Power Laser LASERIX to perform a laser plasma wakefield acceleration (LPWA) experiment. A prerequisite is that the electron beam (10pC,10MeV) has to be compressed longitudinally before being injected into the plasma cell from 2000fs (FWHM) to less than 300fs (and later 100fs). To achieve such compression we present a solution...
Mr
Ryan Roussel
(University of California Los Angeles)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
We present the plans for, and initial results from, a UCLA-Argonne collaborative plasma wakefield acceleration (PWFA) experiment aimed at demonstrating the dependence of transformer ratio – the relation between maximum acceleration observed in a plasma wake to the maximum deceleration of the driving beam – on beam shape. Utilizing the unique capabilities of the emittance exchange (EEX)...
Dr
Uddhab Chaulagain
(ELI beamlines)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
Relativistic interaction of short-pulse, high intensity lasers with underdense plasmas results in acceleration of electrons in relativistic regime. These relativistic electron beams have the ability to serve as a source of spatially coherent collimated, point-like and femtosecond X-ray radiation. Generation of a quasi-monoenergetic bunch of electrons is important for generation of stable...
Ms
Yangmei Li
(University of Manchester, Cockcroft Institute)
25/09/2017, 19:30
WG8 - Advanced and novel accelerators for High Energy Physics
poster
Proton-driven plasma wakefield acceleration has been demonstrated in simulations to be capable of accelerating particles to the energy frontier in a single stage. However, its potential is hindered by the fact that currently available proton bunches are orders of magnitude longer than the plasma wavelength. Self-modulation instability enables the micro-bunching of long proton bunches and...
Valentina Martinelli
(LNF)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
Experimental research on plasma acceleration techniques is one of the most important activities presently ongoing at SPARC_LAB, the multidisciplinary facility of INFN Frascati Laboratories, bunches with energies up to 170 MeV feeding four experimental beamlines. The facility is based on the combination of high power laser pulses (300TW), from the FLAME facility, with high brightness beams...
Dr
Louise Willingale
(University of Michigan)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
We will discuss OMEGA EP experiments of the interaction of a relativistic intensity, picosecond-duration laser pulse with an underdense plasma. A 1200 J, 2.5 ns pulse heated a plastic (or deuterated plastic) target to create an underdense plasma plume target. The ponderomotive force of the laser forms a channel through the plasma. Filamentation of the laser, and therefore filamentation of the...
Dr
Helen Barminova
(NRNU MEPhI)
25/09/2017, 19:30
WG8 - Advanced and novel accelerators for High Energy Physics
poster
Solenoid serves as a single magnetic lens and is used at the different stages of the beam formation with the effectiveness depending from the beam energy. It may change the shape of the initial phase volume of the beam, that may be especially important in some cases of laser-based acceleration because of more specific emittance formation in comparison with the phase volumes of the beams from...
Dr
thomas vinatier
(DESY)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
The ARES S-band linac, intended to be started at the beginning of 2018, will be the central part of the SINBAD (Short and INnovative Bunches At Desy) platform at DESY and aims to be a test bench for various types of novel acceleration schemes (plasma, THz, optical, etc.). In this paper, we present experiments using dielectric-loaded waveguides (DLWs) which are intended to be performed on the...
Mr
Marco Diomede
(Sapienza University of Rome)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
In the framework of the upgrade of the SPARC_LAB facility at INFN-LNF, named EuPRAXIA@SPARC_LAB, a high gradient LINAC has been foreseen. One of the most suitable options is to realize it in X-Band. A preliminary design study of the accelerating structures and power distribution system has been performed. It is based on 0.5 m long travelling wave (TW) accelerating structures operating on the...
Mr
Naoki Ikeda
(The University of Tokyo)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
We have been developing a tabletop ion accelerator system which can be introduced and operated at the laboratory level for radiobiological experiments. In recent years, a heavy ion radiation therapy which is one of a highly effective radiotherapy for malignant tumors is becoming widespread in the general public. There is, however, not enough statistical data evaluating the influence of ion...
Mr
Peyman Yousefi
(Friedrich Alexander University of Erlangen Nürnberg)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
Dielectric laser accelerators (DLAs) have proven to be good candidates for miniaturized particle accelerators. Acceleration gradients in the range of GeV/m have already been shown. In this work we show the field distribution simulations and error tolerances for different DLA geometries when they are powered with short pulses of infrared laser beams. We also discuss the fabrication and testing...
Mr
Willi Kuropka
(DESY Hamburg, University of Hamburg)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
In laser illuminated dieelectric accelerators (DLA) high acceleration gradients can be achieved, due to high damage thresholds of the materials at optical frequencies. This is a necessity in developing more compact particle accelerator technologies. The Accelerator on a CHip International Program funded by the Gordon and Betty Moore Foundation is researching such devices. DESY Hamburgs ARD...
Mr
Barney Williamson
(University of Manchester / CERN)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The AWAKE experiment [1] is a proof-of-principle proton driven plasma accelerator at CERN. Using a 400 GeV SPS proton beam GV/m wakefields are excited in a 10 m plasma to accelerate an injected electron bunch, derived from an adjacent S-band RF electron gun and booster. Future experiments will demonstrate electron acceleration while preserving the beam quality. This places new requirements on...
Mr
Frank Mayet
(DESY, Hamburg, Germany & University of Hamburg, Germany)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
In this work we present the outlines of possible experiments for dielectric laser acceleration of ultra-short relativistic electron bunches produced by the ARES linac, currently under construction at the SINBAD facility (DESY Hamburg). The experiments are to be performed as part of the Accelerator on a Chip International Program (ACHIP), funded by the Gordon and Betty Moore Foundation. At...
Dr
Guoxing Xia
(Cockcroft Institute and the University of Manchester)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
THz wakefields can be excited by ultra-short relativistic electron bunches travelling through the dielectric lined waveguide (DLW) structures. These wakefields can either accelerate a witness bunch with gradient two or three orders of magnitude larger than that in the conventional RF linear accelerators, or introduce energy modulation within the driving bunch itself. In this paper, we study a...
Dr
Alexey Petrenko
(CERN)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The AWAKE Run-2 is a possible extension of the current AWAKE experiment on the proton driven plasma wakefield acceleration using the 400 GeV beam from the CERN SPS accelerator. The current AWAKE experiment is aimed at the proof-of-principle demonstration of electron acceleration driven by a self-modulating proton beam in plasma, while the focus of the proposed AWAKE Run-2 experiment will be on...
Dr
Elena Svystun
(DESY)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The EuPRAXIA (European Plasma Research Accelerator with eXcellence In Applications) project aims at producing a conceptual design for the European plasma-based accelerator facility, capable of delivering high quality multi-GeV electron beams. This facility will be used for various user applications, including free-electron-lasers and high-energy physics detector tests. EuPRAXIA explores...
Dr
Eugenio Ferrari
(Epfl)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
ACHIP is an international collaboration, funded by the Gordon and Betty Moore Foundation, whose goal is to demonstrate that laser-driven accelerator on a chip can be integrated to fully build an accelerator based on dielectric structures.
PSI will provide access to the high brightness electron beam of SwissFEL to test structures, approaches and methods towards achieving the final goal of the...
Davide Gamba
(CERN; John Adams Institute (JAI))
25/09/2017, 19:30
WG8 - Advanced and novel accelerators for High Energy Physics
poster
The conversion of the CALIFES beam line of CTF3 into the "CERN Linear Electron Accelerator for Research" (CLEAR) facility was approved in December 2016.
The primary focus for CLEAR is general accelerator R&D and component studies for existing and possible future accelerator applications. This includes studies for high gradient acceleration methods, e.g. for CLIC and plasma technology, and...
Mr
Nicolas Delerue
(LAL, CNRS and Université Paris-Sud 11)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The ESCULAP project aims at studying external injection of low energy (10 MeV) electrons in a plasma in the quasilinear regime. This facility will use the photo injector PHIL and the high power laser LASERIX. We will give a status report of the preliminary work on the facility and the status of the two machines. We will also present the results of simulations showing the expected performances...
Mrs
Bridget Sheeran
(DESY)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The realisation of high quality (high brightness and low energy spread) electron beams from plasma Wakefield accelerators is crucial for the advancement of fields such as photon science and future high-energy physics colliders.
The FLASHForward facility is a pioneering dedicated beam-driven wakefield experiment combining the 1 GeV, 2.5 kA, FLASH electron beam and a 25 TW, 25 fs pulsed laser...
Gianluca Vantaggiato
(Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche)
25/09/2017, 19:30
WG1 - Electron Beams from Plasmas
poster
The use of laser pulse trains is one of the promising methods to achieve laser wakefield
acceleration because of the low-energy requirements and high repetition rate.
A new design for the generation of a suitable train of pulses from a single highenergy
fast pulse is presented, exploiting optical properties of the main pulse impacting,
just before the last focusing mirror, on a “mask”...
Anna Giribono
(ROMA1)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
The ELI-NP Gamma Beam System is an advanced gamma ray source with unprecedented specifications of brilliance (> 10^21), monochromaticity (0.5 %) and energy tunability ( 0.2 - 19.5 MeV). Here the challenging source performances are provided by the head on collision of a recirculated high power laser pulse and a train of 32 high quality electron beams at 100 Hz repetition rate for the RF power...
Alessandro Curcio
(LNF),
Massimo Petrarca
(ROMA1),
Valerio Dolci
(ROMA1)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
THz radiation is nowadays of great interest for a variety of applications e.g. to study the non-linear response of new materials, medical purposes, particle acceleration etc.. Regarding THz-based particle acceleration, the schemes explored to date make use of a direct interaction: THz-electrons. The THz radiation is generated through the optical rectification process induced in non-linear...
Mr
Alexander Knetsch
(Deutsches Elektronen-Synchrotron, DESY)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
Trojan Horse (TH) Injection in a beam-driven plasma wakefield accelerator(PWFA)[1], which is predicted to generate sub 0.1 µm-emittance electron bunches. The scheme decouples the excitation of the accelerating field by the driving electron bunch from the injection of the witness bunch, triggered by a tightly focused co-propagating laser pulse. This allows for a precise release of electrons at...
Mr
Frank Mayet
(DESY, Hamburg, Germany & University of Hamburg, Germany)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
Laser-driven grating type DLA (Dielectric Laser Accelerator) structures have been shown to produce accelerating gradients on the order of GeV/m. In simple beta-matched grating structures - due to the nature of the laser induced steady-state in-channel fields - the per period forces on the particles are mostly in longitudinal direction. Even though strong transverse magnetic and electric fields...
Daniel Haffa
(LMU Muenchen)
25/09/2017, 19:30
WG2 - Ion Beams from Plasmas
poster
One of the most intriguing features of laser-driven ion sources is their potentially short bunch duration and micrometer small source size (low longitudinal and transverse emittance), which are a direct consequence of the highly intense laser pulses at play. The transition from mostly single shot experiments performed during the last decade towards systems capable of repetition rates up to one...
Angelo Biagioni
(LNF)
25/09/2017, 19:30
WG3 - Electron Beams from Electromagnetic Structures, Including Dielectric and Laser-driven Structures
poster
For plasma wake-field acceleration experiments (PWFA) that are foreseen at the SPARC_LAB test facility, we are going to use a gas-filled capillary plasma source composed of a dielectric capillary where the electron beam has to pass through it in order to achieve higher acceleration energies up to GeV level. In this acceleration scheme, wake fields produced by passing electron beams through...
