Towards more robust ignition of inertial fusion targets
Following the 1.3 MJ fusion milestone at the National Ignition Facility, the further development of inertial confinement fusion, both as a source for future electricity generation and for high energy density physics applications, requires the development of more robust ignition concepts at current l...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
AIP Publishing
2023
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| _version_ | 1811139416045912064 |
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| author | Lee, JJ Ruskov, RT Martin, HS Hughes, S von der Leyen, MW Paddock, RW Timmis, R Ouatu, I Feng, QS Howard, S Atonga, E Aboushelbaya, R Arber, TD Bingham, R Norreys, PA |
| author_facet | Lee, JJ Ruskov, RT Martin, HS Hughes, S von der Leyen, MW Paddock, RW Timmis, R Ouatu, I Feng, QS Howard, S Atonga, E Aboushelbaya, R Arber, TD Bingham, R Norreys, PA |
| author_sort | Lee, JJ |
| collection | OXFORD |
| description | Following the 1.3 MJ fusion milestone at the National Ignition Facility, the further development of inertial confinement
fusion, both as a source for future electricity generation and for high energy density physics applications, requires the
development of more robust ignition concepts at current laser facility energy scales. This can potentially be achieved by
auxiliary heating the hotspot of low convergence wetted foam implosions where hydrodynamic and parametric instabilities are minimised. This paper presents the first multi-dimensional Vlasov-Maxwell and particle-in-cell simulations
to model this collisionless interaction, only recently made possible by access to the largest modern supercomputers.
The key parameter of interest is the maximum fraction of energy that can be extracted from the electron beams into
the hotspot plasma. The simulations indicate that significant coupling efficiencies are achieved over a wide range of
beam parameters and spatial configurations. The implications for experimental tests on the National Ignition Facility
are discussed. |
| first_indexed | 2024-03-07T07:35:24Z |
| format | Journal article |
| id | oxford-uuid:bfb7f399-7713-486e-883c-47f0e705a594 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:05:44Z |
| publishDate | 2023 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | oxford-uuid:bfb7f399-7713-486e-883c-47f0e705a5942024-05-20T10:33:22ZTowards more robust ignition of inertial fusion targetsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bfb7f399-7713-486e-883c-47f0e705a594EnglishSymplectic ElementsAIP Publishing2023Lee, JJRuskov, RTMartin, HSHughes, Svon der Leyen, MWPaddock, RWTimmis, ROuatu, IFeng, QSHoward, SAtonga, EAboushelbaya, RArber, TDBingham, RNorreys, PAFollowing the 1.3 MJ fusion milestone at the National Ignition Facility, the further development of inertial confinement fusion, both as a source for future electricity generation and for high energy density physics applications, requires the development of more robust ignition concepts at current laser facility energy scales. This can potentially be achieved by auxiliary heating the hotspot of low convergence wetted foam implosions where hydrodynamic and parametric instabilities are minimised. This paper presents the first multi-dimensional Vlasov-Maxwell and particle-in-cell simulations to model this collisionless interaction, only recently made possible by access to the largest modern supercomputers. The key parameter of interest is the maximum fraction of energy that can be extracted from the electron beams into the hotspot plasma. The simulations indicate that significant coupling efficiencies are achieved over a wide range of beam parameters and spatial configurations. The implications for experimental tests on the National Ignition Facility are discussed. |
| spellingShingle | Lee, JJ Ruskov, RT Martin, HS Hughes, S von der Leyen, MW Paddock, RW Timmis, R Ouatu, I Feng, QS Howard, S Atonga, E Aboushelbaya, R Arber, TD Bingham, R Norreys, PA Towards more robust ignition of inertial fusion targets |
| title | Towards more robust ignition of inertial fusion targets |
| title_full | Towards more robust ignition of inertial fusion targets |
| title_fullStr | Towards more robust ignition of inertial fusion targets |
| title_full_unstemmed | Towards more robust ignition of inertial fusion targets |
| title_short | Towards more robust ignition of inertial fusion targets |
| title_sort | towards more robust ignition of inertial fusion targets |
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