Polar drive on OMEGA
High-convergence polar-drive experiments are being conducted on OMEGA [T. R. Boehly et al., Opt. Commum. 133, 495 (1997)] using triple-picket laser pulses. The goal of OMEGA experiments is to validate modeling of oblique laser deposition, heat conduction in the presence of nonradial thermal gradient...
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2013-11-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20135902013 |
| _version_ | 1818892333008027648 |
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| author | Radha P.B. Marshall F.J. Boehly T.R. Collins T.J.B. Craxton R.S. Edgell D. Epstein R. Frenje J. Goncharov V.N. Marozas J.A. McCrory R.L. McKenty P.W. Meyerhofer D.D. Petrasso R.D. Sangster T.C. Shvydky A. Skupsky S. |
| author_facet | Radha P.B. Marshall F.J. Boehly T.R. Collins T.J.B. Craxton R.S. Edgell D. Epstein R. Frenje J. Goncharov V.N. Marozas J.A. McCrory R.L. McKenty P.W. Meyerhofer D.D. Petrasso R.D. Sangster T.C. Shvydky A. Skupsky S. |
| author_sort | Radha P.B. |
| collection | DOAJ |
| description | High-convergence polar-drive experiments are being conducted on OMEGA [T. R. Boehly et al., Opt. Commum. 133, 495 (1997)] using triple-picket laser pulses. The goal of OMEGA experiments is to validate modeling of oblique laser deposition, heat conduction in the presence of nonradial thermal gradients in the corona, and implosion energetics in the presence of laser–plasma interactions such as crossed-beam energy transfer. Simulated shock velocities near the equator, where the beams are obliquely incident, are within 5% of experimentally inferred values in warm plastic shells, well within the required accuracy for ignition. High, near-one-dimensional areal density is obtained in warm-plastic-shell implosions. Simulated backlit images of the compressing core are in good agreement with measured images. Outstanding questions that will be addressed in the future relate to the role of cross-beam transfer in polar drive irradiation and increasing the energy coupled into the target by decreasing beam obliquity. |
| first_indexed | 2024-12-19T17:55:02Z |
| format | Article |
| id | doaj.art-d18e438595a34ceabd68a44812695a9b |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T17:55:02Z |
| publishDate | 2013-11-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-d18e438595a34ceabd68a44812695a9b2022-12-21T20:11:50ZengEDP SciencesEPJ Web of Conferences2100-014X2013-11-01590201310.1051/epjconf/20135902013Polar drive on OMEGARadha P.B.Marshall F.J.Boehly T.R.Collins T.J.B.Craxton R.S.Edgell D.Epstein R.Frenje J.Goncharov V.N.Marozas J.A.McCrory R.L.McKenty P.W.Meyerhofer D.D.Petrasso R.D.Sangster T.C.Shvydky A.Skupsky S.High-convergence polar-drive experiments are being conducted on OMEGA [T. R. Boehly et al., Opt. Commum. 133, 495 (1997)] using triple-picket laser pulses. The goal of OMEGA experiments is to validate modeling of oblique laser deposition, heat conduction in the presence of nonradial thermal gradients in the corona, and implosion energetics in the presence of laser–plasma interactions such as crossed-beam energy transfer. Simulated shock velocities near the equator, where the beams are obliquely incident, are within 5% of experimentally inferred values in warm plastic shells, well within the required accuracy for ignition. High, near-one-dimensional areal density is obtained in warm-plastic-shell implosions. Simulated backlit images of the compressing core are in good agreement with measured images. Outstanding questions that will be addressed in the future relate to the role of cross-beam transfer in polar drive irradiation and increasing the energy coupled into the target by decreasing beam obliquity.http://dx.doi.org/10.1051/epjconf/20135902013 |
| spellingShingle | Radha P.B. Marshall F.J. Boehly T.R. Collins T.J.B. Craxton R.S. Edgell D. Epstein R. Frenje J. Goncharov V.N. Marozas J.A. McCrory R.L. McKenty P.W. Meyerhofer D.D. Petrasso R.D. Sangster T.C. Shvydky A. Skupsky S. Polar drive on OMEGA EPJ Web of Conferences |
| title | Polar drive on OMEGA |
| title_full | Polar drive on OMEGA |
| title_fullStr | Polar drive on OMEGA |
| title_full_unstemmed | Polar drive on OMEGA |
| title_short | Polar drive on OMEGA |
| title_sort | polar drive on omega |
| url | http://dx.doi.org/10.1051/epjconf/20135902013 |
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