FACET-II Science Workshop 2017
Date: 17 - 20 Oct, 2017
Location: Kavli Auditorium, SLAC
FACET-II is a new user facility that will provide unique capabilities to develop advanced acceleration and coherent radiation techniques with high-energy electron and positron beams. FACET-II provides a major upgrade over current FACET capabilities and the breadth of the potential research program will make it truly unique.
A baseline design for FACET-II has been established that progressively increases capabilities in three distinct stages and is captured in the FACET-II CDR and TDR. Stage one completes a new photoinjector at Sector 10 and re-establishes operations with high-energy high-brightness electron beams. Stage two will add a new positron damping ring system and allow user runs with high-current positron beams. Stage three will upgrade the chicane in sector 20 for simultaneous delivery of positrons and electrons to the experimental area.
By offering bunch charge ranging from pC to nC, emittance from nm to microns, electrons and positrons, single and double bunches, tailored current profiles of up to nearly 100kA and energy up to 10GeV FACET-II provides experimental capabilities unparalleled anywhere in the world. By leveraging the additional infrastructure afforded by SLAC’s laser group, the FACET laser systems provide multi-terawatt peak powers with state of the art synchronization approaching 10fs.
The FACET-II team is organizing the third of a series of workshops to discuss the scientific opportunities of this new facility, and refine the technical requirements to ensure maximum impact during early operations and into the future. The focus of the current workshop is to asses and chart the development of key technologies needed to to execute the envisioned FACET-II science program.
Registration (closed)
Start Time | Session Topic | Presentation | Presenter | Affiliation |
---|---|---|---|---|
09:00 am | Overview | Workshop Introduction | Mark Hogan | SLAC |
09:15 am | Overview | FACET-II Project Update | Vitaly Yakimenko | SLAC |
09:45 am | Overview | FACET-II Capabilities: e-, e+, two-bunches, sailboat: extreme peak current, non-neutral fireballs etc | Glen White | SLAC |
10:30 am | Coffee Break | |||
11:00 am | Overview | High Level Summary of Anticipated Experimental Program @ FACET-II | Mark Hogan | SLAC |
11:30 am | Emittance preservation & pump depletion | Energy doubling with emittance preservation and pump depletion | Chan Joshi | UCLA |
12:15 pm | Lunch | |||
01:15 pm | Emittance preservation & pump depletion | Plasma sources with density ramps (Li oven + apertured controlled gas pressure) | Ken Marsh | UCLA |
01:45 pm | Emittance preservation & pump depletion | Differential pumping: IP integration & performance | Christine Clarke | SLAC |
02:15 pm | Emittance preservation & pump depletion | Plasma source with optically generated density ramps | Mike Litos | UC Boulder |
02:45 pm | Emittance preservation & pump depletion | Emittance measurements: Butterfly technique and implications for spectrometer | Brendan O'Shea | SLAC |
03:15 pm | Coffee Break | |||
03:30 pm | Emittance preservation & pump depletion | FACET-II diagnostics overview | Nate Lipkovitz | SLAC |
04:00 pm | Emittance preservation & pump depletion | Novel diagnostics and beam phase space recovery | Claudio Emma | SLAC |
04:30 pm | Emittance preservation & pump depletion | Expected beam performance with stability analysis | Glen White | SLAC |
05:00 pm | Emittance preservation & pump depletion | Benefits of a zig-zag compression design for FACET-II | Yichao Jing | BNL |
05:30 pm | Emittance preservation & pump depletion | Discussion | ||
06:00 pm | Adjourn |
Start Time | Session Topic | Presentation | Presenter | Affiliation |
---|---|---|---|---|
09:00 am | Transverse Wakefields with strong beam loading | Emittance vs Loading (introduction, theory with high level simulation results) | Sergei Nageitsev | FNAL |
09:30 am | Transverse Wakefields with strong beam loading | Theoretical progress (multi-modal analysis) | Xinlu Xu | UCLA/SLAC |
10:00 am | Transverse Wakefields with strong beam loading | Detailed computational discussion and next steps in understanding emittance vs. loading in PWFA | Weiming An | UCLA |
10:30 am | Coffee Break | |||
11:00 am | Transverse Wakefields with strong beam loading | Lessons learned from FACET and path forward for FACET-II experiment (offset knobs & what we will see on spectrometer) | Erik Adli | U. Oslo |
11:30 am | Transverse Wakefields with strong beam loading | Diagnostic requirements for witness bunch offsets (r,z) | Mike Litos | UC Boulder |
12:00 pm | Transverse Wakefields with strong beam loading | Calculation of wakefields for plasma-wakefield accelerators | Gennady Stupakov | SLAC |
12:30 pm | Lunch | |||
01:30 pm | Positrons, hollow channels and dielectrics | Hollow channel longitudinal & transverse wakes | Carl Andreas Lindstrom | University of Oslo |
02:00 pm | Positrons, hollow channels and dielectrics | Dielectric Wakefield Accelerators: status & what’s next | Gerard Andonian | UCLA |
02:30 pm | Positrons, hollow channels and dielectrics | Analysis of BBU in compact structure -based wakefield accelerators and a suppression method | Stanislav Baturin | University of Chicago |
03:00 pm | Positrons, hollow channels and dielectrics | Saturation of the beam-hosing instability in quasi-linear plasma- wakefield accelerators | Remi Lehe | LBNL |
03:30 pm | Coffee Break | |||
03:45 pm | Positrons, hollow channels and dielectrics | Positron PWFA - what we’ve learned and what’s next | Sebastien Corde | Ecole Polytechnique |
04:15 pm | Positrons, hollow channels and dielectrics | Electron Driven Positron Acceleration with the Sailboat Chicane | Weiming An | UCLA |
04:45 pm | Positrons, hollow channels and dielectrics | Non-neutral fireball and possibilities for accelerating positrons with plasma | Jorge Viera | IST |
05:15 pm | Positrons, hollow channels and dielectrics | Discussion | ||
06:00 pm | Adjourn |
Start Time | Session Topic | Presentation | Presenter | Affiliation |
---|---|---|---|---|
09:00 am | Injection experiments | Ionization injection - what we’ve learned and next steps | Navid Vafaei | Stonybrook University |
09:30 am | Injection experiments | Density Downramp Injection - Prospects for Ultra-high Brightness Beams | Xinlu Xu | UCLA/SLAC |
10:00 am | Injection experiments | Trojan Horse and Plasma Torch Injection - lessons learned and next steps | Bernhard Hidding | University of Strathclyde |
10:30 am | Coffee Break | |||
11:00 am | Injection experiments | Plans @ DESY | Jens Osterhoff | DESY |
11:30 am | Injection experiments | Low emittance measurements :100nm from betatron spectrum | Nathan Majernik | UCLA |
12:00 pm | Plasma Accelerator based FELs | Status of task force efforts | Mark Hogan | SLAC |
12:30 pm | Lunch | |||
01:30 pm | Plasma Accelerator based FELs | Realizing an FEL from a Plasma Accelerator - Progress and Plans at LBNL | Jeroen VanTillborg | LBNL |
02:00 pm | Ion Motion | Ion motion effects on emittance | Weiming An | UCLA |
02:30 pm | Ion Motion | Ion motion effects on energy spread | Xinlu Xu | UCLA/SLAC |
03:00 pm | Coffee Break | |||
03:15 pm | Ion Motion | Emittance preservation in plasma-based accelerators with ion motion | Carlo Benedetti | LBNL |
03:45 pm | Ion Motion | Long term wake evolution: heating & ion wakes | Jorge Viera | IST |
04:15 pm | Ion Motion | Imaging of beam-induced plasma structures: FACET and FACET-II | Mike Downer | UT Austin |
04:45 pm | Ion Motion | TeV/m in Plasmas | James Rosenzweig | UCLA |
05:15 pm | Ion Motion | Discussions | ||
05:30 pm | Adjourn | |||
06:00 pm | Wine & Cheese Reception – Building 52 Lobby |
Start Time | Session Topic | Presentation | Presenter | Affiliation |
---|---|---|---|---|
09:00 am | Simulation Codes | QuickPIC | Weiming An | UCLA |
09:30 am | Simulation Codes | OSIRIS | Warren Mori | UCLA |
10:00 am | Simulation Codes | WarpX & Exascale | Jean LucVay | LBNL |
10:30 am | Coffee Break | |||
11:00 am | Simulation Codes | VSIM | John Cary | UC Boulder & TechX |
11:30 am | Simulation Codes | 8 Years of Beam-Driven Wakefield Simulation -- lessons learned, reduced models, and future plans | David Bruhwiler | Radiasoft |
12:00 pm | New Directions @ FACET-II | Active plasma lenses – limitations on beam energy/density and aberrations | Jan-Hendrik Röckeman | DESY |
12:30 pm | Lunch | |||
01:30 pm | New Directions @ FACET-II | High Field QED enabled by 100TW + 15GeV | David Reis | SLAC |
02:00 pm | New Directions @ FACET-II | High Fields: compressed 10GeV+300MeV -> 100GeV/100GeV | Sebastian Meuren | Princeton University |
02:30 pm | New Directions @ FACET-II | High Fields: computational challenges | Thomas Grismayer | IST |
03:00 pm | Coffee Break | |||
03:15 pm | New Directions @ FACET-II | Laser upgrade options: >100TW, transport and quality improvement | Alan Fry | SLAC |
03:45 pm | New Directions @ FACET-II | Laboratory Astrophysics studies with electron- positron beams at FACET-II | Frederico Fiuza | SLAC |
04:15 pm | New Directions @ FACET-II | Material studies with compressed electron & positron beams at FACET-II | Ioan Tudosa | University of Pennsylvania |
04:45 pm | New Directions @ FACET-II | Discussions | ||
05:15 pm | Adjourn |
LAST NAME | FIRST NAME | AFFILIATION |
---|---|---|
Adli | Erik | University of Oslo |
Allen | James | Stanford University/SLAC |
An | Weiming | UCLA |
Andonian | Gerard | UCLA |
Baturin | Stanislav | The University of Chicago |
Baxevanis | Panagiotis | |
Benedetti | Carlo | Lawrence Berkeley National Laboratory |
Blaclard | Guillaume | Lawrence Berkeley National Laboratory |
Bruhwiler | David | RadiaSoft LLC |
Cary | John | University of Colorado and Tech-X Corporation |
Clarke | Christine | SLAC |
Clayton | Chris | UCLA |
Corde | Sebastien | Ecole Polytechnique |
Cowan | Benjamin | Tech-X Corporation |
D'Arcy | Richard | DESY |
Emma | Claudio | SLAC National Accelerator Laboratory |
England | Joel | SLAC |
Esarey | Eric | LBNL |
Frisch | Josef | SLAC |
Green | Selina | SLAC |
Grismayer | Thomas | GoLP/Instituto de Plasmas e Fusao Nuclear, Universidade de Lisboa |
Hemsing | Erik | SLAC |
Higuera | Adam | University of Colorado at Boulder |
Hogan | Mark | SLAC |
Huang | Zhirong | SLAC |
Jing | Yichao | BNL |
Joshi | Chandrashekhar | UCLA |
Lehe | Remi | LBNL |
Len | LK | DOE |
Lipkowitz | Nate | SLAC |
Litos | Michael | University of Colorado Boulder |
Lu | Wei | Tsinghua University |
Majernik | Nathan | UCLA |
Marsh | Kenneth | UCLA EE Dept |
Merminga | Lia | SLAC |
Meuren | Sebastian | Department of Astrophysical Sciences, Princeton University |
Murokh | Alex | RadiaBeam Technologies, LLC. |
Nagaitsev | Sergei | Fermilab/UChicago |
Ng | Cho-Kuen | SLAC National Accelerator Laboratory |
O'Shea | Brendan | SLAC |
Osterhoff | Jens | DESY |
Pellegrini | Claudio | SLAC |
Peskin | Michael | SLAC |
Raubenheimer | Tor | SLAC |
Reis | David | Stanford PULSE Institue |
Roeckemann | Jan-Hendrik | DESY |
Rosenzweig | James | UCLA |
Ryne | Robert | LBNL |
Schroeder | Carl | LBNL |
Seeman | John | SLAC |
Seryi | Andrei | John Adams Institute |
Siciak | Antonin | Ecole Polytechnique |
Storey | Doug | University of Victoria |
Stupakov | Gennady | SLAC |
Sutherland | Andrew | SLAC / University of Strathclyde |
Thévenet | Maxence | Lawrence Berkeley National Laboratory |
Tudosa | Ioan | UPenn |
Vafaei-Najafabadi | Navid | Stony Brook University |
van Tilborg | Jeroen | LBNL |
Vay | Jean-Luc | LBNL |
Vieira | Jorge | Instituto Superior Técnico |
Walz | Dieter | SLAC |
Xu | Xinlu | UCLA/SLAC |
Yakimenko | Vitaly | SLAC |
Yocky | Jerry | SLAC FACET-II |
Yu | Siyi | Ecole Polytechnique |
Zholents | Alexander | Argonne National Laboratory |