nnsa user facilities - national laser platforms: nif, omega, jlf · 2020. 3. 18. · jlf uses an...
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LLNL-PRES-767619This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. Lawrence Livermore National Security, LLC
NNSA User Facilities - National Laser Platforms: NIF, Omega, JLFTo: Stewardship Science Academic Alliance
Alan Wan - Lawrence Livermore National LaboratoryKevin Fournier – NIF User Office Director, LLNLMingsheng Wei – Omega User Coordinator and NLUF Manager, LLEBob Cauble – JLF Director, LLNLFebruary 23, 2019
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Stockpile Stewardship Program: Maintain confidence in the US nuclear deterrent without further underground nuclear testing
Increasing role of Science & Technology as we move further away from the Underground Test (UGT) era
1945 1992 Present 2032
Confidence in stewards and capabilities grounded by experimental reality
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NNSA is developing a 5-year HED Plan to deliver for Stockpile StewardshipHED Topics Due Date Major Technical Goals
Thermonuclear Burn
2020 Determine the efficacy of NIF for ignition and credible physics-scaling to multi-megajoule yields for all ignition approaches
2023 Reduce uncertainties in yield scaling based on the 2020 ICF assessment
2023 Execute thermonuclear burn experiments that inform primary boost
2023 Increase energy coupling from the driver to the fusion fuel
2024 Establish modern mission requirements for a high yield capability
2025 Finish major program review to assess the investments needed to meet modern mission requirements
Material & Plasma
Properties
2019 Deliver data to assess material replacement options for W80-4 LEP
2024 Support national Pu aging and manufacturing assessment effort through cross platform HED experiments
2024 Reduce discrepancies between opacity experiments and models through a systematic study of high-temperature cross-platform measurements
Rad Hydro & Transport
2019 Complete radiation transport campaign relevant to W80-4 LEP
2022 Experimentally constrain complex hydro models used for stockpile assessments
Output and Survivability
2020 Develop x-ray platforms for measuring thermo-mechanical shock to inform future LEP options
2023 Enable system-generated electromagnetic pulse model validation using new warm x-ray capabilities
2024 Measure the response of weapon-related components under high-neutron fluence irradiation
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NNSA’s sustaining support of relevant HED effort is critical in delivering the data, stewards, platforms, and diagnostics in support of Stockpile Stewardship
Data
Platforms(5-10 years)
Stewards(5+ years)
Diagnostics(5-10 years)
Multi-frame CMOS
SLOS
TARDIS
compactproton Spectrometers (MIT)
Ryan Nora
Maria Barrios
Hans Rinderknecht
Alex Zylstra
Channing Huntington
Dayne Fratanduono
Dan Casey
Searchlight Diffraction Double Shell EXAFSRT Strength Mach EOS
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Today I’ll describe on how you can get more involved with the HED effort through collaboration and access to NNSA’s laser/HED facilities
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The NIF employs a three-stage planning-and-approval process
Proposal Evaluation
NIF User Portal
Shot Request & Scheduling
Shot Request Tool and Shot Planner
Planning & Implementation
Shot Setup Tool andApproval Manager
Increasingly detailed input required from the user
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LLNL’s proposal portal is hosted on the Salesforce™ platform, external to LLNL’s firewall and accessible to the world.
Liaisons from LLNL staff are assigned when requested by external users to help navigate the process.
Contacts:— Bruce Remington, DS Lead
• [email protected]— Kevin Fournier, NIF User Office
Director• [email protected]• (925) 422-2179 (User Group
office)
NIF Discovery Science: Proposal submission and review process
Facility review and feedback to proposers is a key part of ensuring feasibility of experiments
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• Shot days scheduled by quarter over a 2 year execution period
• Shots planned in detail and scheduled as part of semi-annual schedule process for NIF
• Periodic meetings with each team to facilitate planning and early identification of issues or constraints
• These ongoing interactions are necessary to manage the integration — The Discovery Science campaigns are
typically very different than routine programmatic experiments
— There are often changes each shot day as teams modify plans to respond to what they are learning
NIF management and collaborators coordinate scheduling and stay in close contact with users throughout the experiment planning phase
Access Apps at http://nifit.llnl.gov/
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Jeanloz (UCB),gas giant planets
Falcone (UCB), EOS of WDM relevant tobrown dwarfs
Kuranz (U. Mich.), radiative supernova remnant shocks
Gatu-Johnson (MIT), stellar nuclear reactions
Casner (Univ. Bordeaux), Landau-Darrius flame instability(SNe-1a dynamics) Berzak-Hopkins (LLNL),
plasma nuclear reactions
Doeppner (LLNL), dense plasmas, x-ray Thomson scattering
Meyers (UCSD), extreme materials science
Albert (LLNL), plasma wake-field particle acceleration
We are executing the Discovery Science NIF shots for the 11 teams allocated NIF time in the Nov. 2017 TRC review
Kline (LANL), turbulent RT in cylindrical geometry
Pollock (LLNL)magnetic fields in the universe
NIF’s Discovery Science effort – current snapshot
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UR/LLE designed, built and operates the Omega Laser Facility (the largest lasers in any academic setting worldwide) for the Stockpile Stewardship Program and Basic Science research
• >200 diagnostics operated and supported by LLE
• External B fields up to 27T (50T in FY19)• Combined long- and short-pulse operation• Versatile experimental capabilities
OMEGA Laser System• Operating since 1995• 60 beams• 30 kJ UV on target• Spherical/cylindrical
compression• Flexible pulse shaping• up to 1500 shots/year
OMEGA EP Laser System• Operating since 2008• 4 NIF-like beamlines• 5 kJ/beam UV (10 ns)• 2 short-pulse IR beams:
up to 0.5 kJ/beam in 0.7 ps(>1 kJ in 10 to 100 ps)
• IR beam(s) or one UV beam with wavelength tuning capability can be coupled to OMEGA
• ~600 to 800 shots/year
UR/LLE• Funded by DOE/NNSA through a
cooperative agreement • Faculty equivalent staff: 121• Professional staff: 178• Associated faculty: 25• Graduate and undergraduate
students: 145- ~35 students from other
universities
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The Omega Laser Facility delivered > 2300 target shots in FY18 with 329 shots for academic-led Basic Science experiments
• External users perform 60% of the experiments.• Basic Science (NLUF and LBS) accounted for
524 target shots in FY18.
The large number of shots, state-of-the-art facilities, and university setting provide an attractive environment for training and education.
Omega – an NNSA User Facility
____________ICF: Inertial Confinement Fusion
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NLUF and LBS Basic Science experiments are awarded through competitive and peer-review proposal processes
National Laser Users’ Facility (NLUF)
http://www.lle.rochester.edu/about/nluf.php
For U.S. university and industry users DOE grant program— Annual support to users ~$1.8M— Additional funding (~$0.9M/year) for target fabrication support Two-year cycle (typically 10-14 awards each cycle)— ~ 30 Omega shot days each year NLUF has received 376 proposals with 202 of these approved since 1979 NLUF has produced over 170 PhDs
New joint DOE NNSA/Office of Science solicitation for the NLUF program
DE-FOA-0001891Submission due 15 March 2019
https://www.grants.govhttps://www.fedconnect.net/
Laboratory Basic Science (LBS)• For users from NNSA and Office of Science laboratories and LLE – Basic Science experiments that are not of the immediate NNSA mission need• LLE administrates the LBS program– Annual proposal submission– Proposals are subjected to a similar level of peer review and facility feasibility assessment as the NLUF proposals• ~10 - 15 LBS facility-time awards each year • LBS has received 315 proposals since 2008– 50% of those were approved• Many LBS projects have collaborators including graduate students from universities
Contact: Dr. Mingsheng WeiNLUF Manager and LBS [email protected](585) 275-3866
LBS 2020 Solicitationsubmission due 2 April 2019
http://www.lle.rochester.edu
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A governance plan implemented in FY08 formalizes scheduling the Omega Facility as an NNSA User Facility
NNSA provides guidance on shot allocations among categories — ~67% for ICF + HED and ~28% for Basic Science
(NLUF + LBS) in FY18
FASC members are appointed by the host institution and approved by the LLE Director
Reviews experimental proposals based on merit and program requirements
Recommends system time allocations and facility schedule at the annual meeting in each June
Promotes an effective user community
Reviews facility availability and effectiveness
Omega Facility Advisory and Scheduling Committee (FASC)
ICF~33% in FY18
HED~34% in FY18
Basic Science (NLUF, LBS)
(peer reviewed)~ 28% in FY18
____________ICF: Inertial Confinement FusionHED: High Energy Density
LBS: Laboratory Basic ScienceNLUF: National Laser Users’ Facility
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The Omega experimental template and shot configuration submittal and approval process are formally administrated
Once the experiment is selected for Omega shots, LLE/FASC and PI’s communicate regularly:
Experimental Proposal with Shot Request Form for each configuration 3-Page Summary
2-week and 1-week PI briefing meeting
____________PI: Principal InvestigatorFASC: Omega Facility Advisory and Scheduling Committee
Omega Operation Page:https://omegaops.lle.rochester.edu/
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Research conducted at the Omega Laser Facility has resulted in more than 1800 papers since 2001
One of every five HEDP papers in Nature and Science Journals is enabled by the Omega Laser Facility
Omega Basic Science experiments produced recent papers (partial list) in Science and Nature Journals
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Jupiter Laser Facility (JLF) is an intermediate-scale High Energy Density (HED) Science user facility at LLNL formed to grow HED science
JLF uses an open-access user facility model that encourages participation by a broad community and has over 500 registered users, 200 visit in a typical year
Two 1-kJ ns beams
One 300-J ps beam + One 1-kJ ns beam
or
High-Energy Laser Bay
Titan
Janus
COMET
One or two beams 0.5 ps – 2 ns, up to 10 J
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JLF uses a proposal submission process to select experiments
• Experiments are 4-week campaigns. 85% of experiments have been collaborative (both LLNL and non-LLNL researchers) no matter the institution of the PI.
• 8-9 experiments in each target area each year
• Annual proposal submission. Proposals ranked by a committee of LLNL and university panel members.
• Ranked by scientific and/or programmatic merit and impact• Assessed for feasibility• Consideration given for inclusion of students and young researchers• Starting this year, one experiment is at the discretion of the new LLNL HED
Center, and one Titan run is reserved for LaserNetUS• At least one team new to JLF will be accepted each year, even if the proposal is
judged slightly weaker than others
• About half of the proposals submitted have been accepted over the past 5 years• Janus (long pulse): 38/60 proposals • Titan (short pulse): 38/75 proposals
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One week between campaigns for tear-down, set-up, and maintenance
Usually shoot Monday-Thursday and alternate Fridays— We do what we can to make up for lost shots
Campaigns average ∼ 1 week of shot days to start collecting meaningful data
Typical shot day:— 0600-1900: nominal user access— 0500-0730: system warmup and alignment to target areas— 0830: plan-of-the-day meeting— 0900: first shot— 1830: last shot, system shutdown
A good day will currently yield 8-10 shots to a target area
The four-week campaigns consist of 16-18 shot days
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Relativistic and non-relativistic laboratory-astrophysics (collisionless shocks, dusty plasmas, particle jets)
Generation, optimization and use of charged particle sources – electrons, protons, positrons
Effects of strong external and self-generated magnetic fields (reconnection, collimation)
Laser wakefield and betatron development
Laser plasma interactions
Generation and characterization of warm dense matter
Material properties at extreme pressure (EOS, transport properties, phase transitions, dislocation generation and motion)
Diagnostic development (laser-driven dynamic diffraction)
Trying out novel/risky ideas (nanostructure targets, innovative B-field generation, new spectroscopic techniques)
Research at JLF covers a wide range of HED physics
Journal articles describing these and other experiments at JLF can be found on the Publications link of the JLF website: https://jlf.llnl.gov/publications/science-publications
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User Groups (NIF/JLF, Omega) provide technical interaction, support, and advocacy to the academic communities
Chair: Farhat Beg, UC San Diego
Chair: Mark Koepke, West Virginia
Njema Frazier, Office Director, Experimental Science, NNSA
Next OLUG Workshop 24–26 April 2019, Rochester, NY
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Direct collaborations with NNSA Laboratories provide another pathway to HED research on ICF Facilities – example: MIT
Staff and Students
CR-39-based neutron diagnostics
MRSt neutron spectrometer
Transition from fluid- to kinetic-like ICF plasmas
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Omega has been used to develop many of the diagnostics and platforms for the NIF – four new ones implemented or under development (available soon)
Magnetized target capability using MIFEDS
A new TIM-based angularly resolved optical Thomson scattering (OTS) is being developed on OMEGA to measure arbitrary electron distribution functions
I2849
• Gen 2.x available in Q2F19 will double the field• Gen 3 (completely new design) will provide > 50T
field over mm3 – available in FY20
Gen 3 (new)2.2 kJ at 30 kV
Gen 2 (current)and 2.x (upgrades)
High pressure Gas-jet target
• Available on both OMEGA and OEMGA EP including operation with the short pulse beam
Wavelength tunable OMEGA Port 9 (TOP9) beam using the OMEGA-EP OPA to achieve (∆λUV = 3 nm) for focused LPI study
Collection Opticf/0.25 x f/4
____________MIFEDS: Magneto-Inertial Fusion Electrical Discharge System LPI: Laser plasma interaction TIM: Ten Inch Manipulator
Plasma
120o k-resolved OTS
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NNSA supported ICF Facilities have served as great training grounds for future stockpile stewards
Over 330 University of Rochestergraduate students have completed
their Ph.D. degrees with LLE support.
Over 170 students have completed their Ph.D. degrees with support from the National Laser Users’
Facility Program.
Where do you see yourself in 5 years?