Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility
We report on the first layered deuterium-tritium (DT) capsule implosions indirectly driven by a “high-foot” laser pulse that were fielded in depleted uranium hohlraums at the National Ignition Facility. Recently, high-foot implosions have demonstrated improved resistance to ablation-front Rayleigh-T...
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/97909 |
| _version_ | 1826209484495650816 |
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| author | Doppner, T. Callahan, D. A. Hurricane, O. A. Hinkel, D. E. Ma, T. Park, H.-S. Berzak Hopkins, L. F. Casey, D. T. Celliers, P. Dewald, E. L. Dittrich, T. R. Haan, S. W. Kritcher, A. L. MacPhee, A. G. Le Pape, S. Pak, A. Patel, P. K. Springer, P. T. Salmonson, J. D. Tommasini, R. Benedetti, L. R. Bond, E. Bradley, D. K. Caggiano, J. Church, J. Dixit, S. Edgell, D. Edwards, M. J. Fittinghoff, D. N. Grim, G. Hatarik, R. Havre, M. Herrmann, H. Izumi, N. Khan, S. F. Kline, J. L. Knauer, J. Kyrala, G. A. Landen, O. L. Merrill, F. E. Moody, J. D. Moore, A. S. Nikroo, A. Ralph, J. E. Remington, B. A. Robey, H. F. Sayre, D. Schneider, M. Streckert, H. Town, R. Turnbull, D. Volegov, P. L. Wan, A. Widmann, K. Wilde, C. H. Yeamans, C. Frenje, Johan A. Gatu Johnson, Maria |
| author2 | Massachusetts Institute of Technology. Plasma Science and Fusion Center |
| author_facet | Massachusetts Institute of Technology. Plasma Science and Fusion Center Doppner, T. Callahan, D. A. Hurricane, O. A. Hinkel, D. E. Ma, T. Park, H.-S. Berzak Hopkins, L. F. Casey, D. T. Celliers, P. Dewald, E. L. Dittrich, T. R. Haan, S. W. Kritcher, A. L. MacPhee, A. G. Le Pape, S. Pak, A. Patel, P. K. Springer, P. T. Salmonson, J. D. Tommasini, R. Benedetti, L. R. Bond, E. Bradley, D. K. Caggiano, J. Church, J. Dixit, S. Edgell, D. Edwards, M. J. Fittinghoff, D. N. Grim, G. Hatarik, R. Havre, M. Herrmann, H. Izumi, N. Khan, S. F. Kline, J. L. Knauer, J. Kyrala, G. A. Landen, O. L. Merrill, F. E. Moody, J. D. Moore, A. S. Nikroo, A. Ralph, J. E. Remington, B. A. Robey, H. F. Sayre, D. Schneider, M. Streckert, H. Town, R. Turnbull, D. Volegov, P. L. Wan, A. Widmann, K. Wilde, C. H. Yeamans, C. Frenje, Johan A. Gatu Johnson, Maria |
| author_sort | Doppner, T. |
| collection | MIT |
| description | We report on the first layered deuterium-tritium (DT) capsule implosions indirectly driven by a “high-foot” laser pulse that were fielded in depleted uranium hohlraums at the National Ignition Facility. Recently, high-foot implosions have demonstrated improved resistance to ablation-front Rayleigh-Taylor instability induced mixing of ablator material into the DT hot spot [Hurricane et al., Nature (London) 506, 343 (2014)]. Uranium hohlraums provide a higher albedo and thus an increased drive equivalent to an additional 25 TW laser power at the peak of the drive compared to standard gold hohlraums leading to higher implosion velocity. Additionally, we observe an improved hot-spot shape closer to round which indicates enhanced drive from the waist. In contrast to findings in the National Ignition Campaign, now all of our highest performing experiments have been done in uranium hohlraums and achieved total yields approaching 10[superscript 16] neutrons where more than 50% of the yield was due to additional heating of alpha particles stopping in the DT fuel. |
| first_indexed | 2024-09-23T14:23:14Z |
| format | Article |
| id | mit-1721.1/97909 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:23:14Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/979092022-10-01T20:59:46Z Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility Doppner, T. Callahan, D. A. Hurricane, O. A. Hinkel, D. E. Ma, T. Park, H.-S. Berzak Hopkins, L. F. Casey, D. T. Celliers, P. Dewald, E. L. Dittrich, T. R. Haan, S. W. Kritcher, A. L. MacPhee, A. G. Le Pape, S. Pak, A. Patel, P. K. Springer, P. T. Salmonson, J. D. Tommasini, R. Benedetti, L. R. Bond, E. Bradley, D. K. Caggiano, J. Church, J. Dixit, S. Edgell, D. Edwards, M. J. Fittinghoff, D. N. Grim, G. Hatarik, R. Havre, M. Herrmann, H. Izumi, N. Khan, S. F. Kline, J. L. Knauer, J. Kyrala, G. A. Landen, O. L. Merrill, F. E. Moody, J. D. Moore, A. S. Nikroo, A. Ralph, J. E. Remington, B. A. Robey, H. F. Sayre, D. Schneider, M. Streckert, H. Town, R. Turnbull, D. Volegov, P. L. Wan, A. Widmann, K. Wilde, C. H. Yeamans, C. Frenje, Johan A. Gatu Johnson, Maria Massachusetts Institute of Technology. Plasma Science and Fusion Center Frenje, Johan A. Gatu Johnson, Maria We report on the first layered deuterium-tritium (DT) capsule implosions indirectly driven by a “high-foot” laser pulse that were fielded in depleted uranium hohlraums at the National Ignition Facility. Recently, high-foot implosions have demonstrated improved resistance to ablation-front Rayleigh-Taylor instability induced mixing of ablator material into the DT hot spot [Hurricane et al., Nature (London) 506, 343 (2014)]. Uranium hohlraums provide a higher albedo and thus an increased drive equivalent to an additional 25 TW laser power at the peak of the drive compared to standard gold hohlraums leading to higher implosion velocity. Additionally, we observe an improved hot-spot shape closer to round which indicates enhanced drive from the waist. In contrast to findings in the National Ignition Campaign, now all of our highest performing experiments have been done in uranium hohlraums and achieved total yields approaching 10[superscript 16] neutrons where more than 50% of the yield was due to additional heating of alpha particles stopping in the DT fuel. United States. Dept. of Energy (Lawrence Livermore National Laboratory Contract DE-AC52-07NA27344) 2015-07-29T11:59:39Z 2015-07-29T11:59:39Z 2015-07 2014-12 2015-07-28T22:00:12Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/97909 Doppner, T., et al. "Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility." Phys. Rev. Lett. 115, 055001 (July 2015). © 2015 American Physical Society en http://dx.doi.org/10.1103/PhysRevLett.115.055001 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Doppner, T. Callahan, D. A. Hurricane, O. A. Hinkel, D. E. Ma, T. Park, H.-S. Berzak Hopkins, L. F. Casey, D. T. Celliers, P. Dewald, E. L. Dittrich, T. R. Haan, S. W. Kritcher, A. L. MacPhee, A. G. Le Pape, S. Pak, A. Patel, P. K. Springer, P. T. Salmonson, J. D. Tommasini, R. Benedetti, L. R. Bond, E. Bradley, D. K. Caggiano, J. Church, J. Dixit, S. Edgell, D. Edwards, M. J. Fittinghoff, D. N. Grim, G. Hatarik, R. Havre, M. Herrmann, H. Izumi, N. Khan, S. F. Kline, J. L. Knauer, J. Kyrala, G. A. Landen, O. L. Merrill, F. E. Moody, J. D. Moore, A. S. Nikroo, A. Ralph, J. E. Remington, B. A. Robey, H. F. Sayre, D. Schneider, M. Streckert, H. Town, R. Turnbull, D. Volegov, P. L. Wan, A. Widmann, K. Wilde, C. H. Yeamans, C. Frenje, Johan A. Gatu Johnson, Maria Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility |
| title | Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility |
| title_full | Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility |
| title_fullStr | Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility |
| title_full_unstemmed | Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility |
| title_short | Demonstration of High Performance in Layered Deuterium-Tritium Capsule Implosions in Uranium Hohlraums at the National Ignition Facility |
| title_sort | demonstration of high performance in layered deuterium tritium capsule implosions in uranium hohlraums at the national ignition facility |
| url | http://hdl.handle.net/1721.1/97909 |
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