Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion
Direct-drive implosions with 20-μm-thick glass shells were conducted on the Omega Laser Facility to test the performance of high-Z glass ablators for direct-drive, inertial confinement fusion. The x-ray signal caused by hot electrons generated by two-plasmon-decay instability was reduced by more th...
| Hlavní autoři: | , , , , , , , , , , , , , , , |
|---|---|
| Další autoři: | |
| Médium: | Článek |
| Jazyk: | en_US |
| Vydáno: |
American Physical Society
2010
|
| On-line přístup: | http://hdl.handle.net/1721.1/58747 https://orcid.org/0000-0002-6919-4881 https://orcid.org/0000-0002-1020-3501 |
| _version_ | 1826188603169964032 |
|---|---|
| author | Smalyuk, V. A. Betti, R. Delettrez, J. A. Glebov, V. Yu. Meyerhofer, D. D. Radha, P. B. Regan, S. P. Sangster, T. C. Sanz, J. Seka, W. Stoecki, C. Yaakobi, B. Frenje, Johan A. Li, Chikang Petrasso, Richard D. Seguin, Fredrick Hampton |
| author2 | Massachusetts Institute of Technology. Plasma Science and Fusion Center |
| author_facet | Massachusetts Institute of Technology. Plasma Science and Fusion Center Smalyuk, V. A. Betti, R. Delettrez, J. A. Glebov, V. Yu. Meyerhofer, D. D. Radha, P. B. Regan, S. P. Sangster, T. C. Sanz, J. Seka, W. Stoecki, C. Yaakobi, B. Frenje, Johan A. Li, Chikang Petrasso, Richard D. Seguin, Fredrick Hampton |
| author_sort | Smalyuk, V. A. |
| collection | MIT |
| description | Direct-drive implosions with 20-μm-thick glass shells were conducted on the Omega Laser Facility to test the performance of high-Z glass ablators for direct-drive, inertial confinement fusion. The x-ray signal caused by hot electrons generated by two-plasmon-decay instability was reduced by more than ~40× and hot-electron temperature by ~2× in the glass compared to plastic ablators at ignition-relevant drive intensities of ~1×10[superscript 15] W/cm[superscript 2], suggesting reduced target preheat. The measured absorption and compression were close to 1D predictions. The measured soft x-ray production in the spectral range of ~2 to 4 keV was ~2× to 3× lower than 1D predictions, indicating that the shell preheat caused by soft x-rays is less than predicted. A direct-drive-ignition design based on glass ablators is introduced. |
| first_indexed | 2024-09-23T08:02:17Z |
| format | Article |
| id | mit-1721.1/58747 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:02:17Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/587472022-09-23T10:26:11Z Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion Smalyuk, V. A. Betti, R. Delettrez, J. A. Glebov, V. Yu. Meyerhofer, D. D. Radha, P. B. Regan, S. P. Sangster, T. C. Sanz, J. Seka, W. Stoecki, C. Yaakobi, B. Frenje, Johan A. Li, Chikang Petrasso, Richard D. Seguin, Fredrick Hampton Massachusetts Institute of Technology. Plasma Science and Fusion Center Seguin, Fredrick Hampton Frenje, Johan A. Li, Chikang Petrasso, Richard D. Seguin, Fredrick Hampton Direct-drive implosions with 20-μm-thick glass shells were conducted on the Omega Laser Facility to test the performance of high-Z glass ablators for direct-drive, inertial confinement fusion. The x-ray signal caused by hot electrons generated by two-plasmon-decay instability was reduced by more than ~40× and hot-electron temperature by ~2× in the glass compared to plastic ablators at ignition-relevant drive intensities of ~1×10[superscript 15] W/cm[superscript 2], suggesting reduced target preheat. The measured absorption and compression were close to 1D predictions. The measured soft x-ray production in the spectral range of ~2 to 4 keV was ~2× to 3× lower than 1D predictions, indicating that the shell preheat caused by soft x-rays is less than predicted. A direct-drive-ignition design based on glass ablators is introduced. United States. Dept. of Energy. Office of Inertial Confinement Fusion (Cooperative Agreement No. DE-FC52-08NA28302) University of Rochester New York State Energy Research and Development Authority 2010-09-29T13:30:12Z 2010-09-29T13:30:12Z 2010-04 2009-07 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/58747 Smalyuk, V.A. et al. "Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion." Physical Review Letters 104.16 (2010): 165002. © 2010 The American Physical Society https://orcid.org/0000-0002-6919-4881 https://orcid.org/0000-0002-1020-3501 en_US http://dx.doi.org/10.1103/PhysRevLett.104.165002 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. application/pdf American Physical Society APS |
| spellingShingle | Smalyuk, V. A. Betti, R. Delettrez, J. A. Glebov, V. Yu. Meyerhofer, D. D. Radha, P. B. Regan, S. P. Sangster, T. C. Sanz, J. Seka, W. Stoecki, C. Yaakobi, B. Frenje, Johan A. Li, Chikang Petrasso, Richard D. Seguin, Fredrick Hampton Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion |
| title | Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion |
| title_full | Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion |
| title_fullStr | Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion |
| title_full_unstemmed | Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion |
| title_short | Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion |
| title_sort | implosion experiments using glass ablators for direct drive inertial confinement fusion |
| url | http://hdl.handle.net/1721.1/58747 https://orcid.org/0000-0002-6919-4881 https://orcid.org/0000-0002-1020-3501 |
| work_keys_str_mv | AT smalyukva implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT bettir implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT delettrezja implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT glebovvyu implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT meyerhoferdd implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT radhapb implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT regansp implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT sangstertc implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT sanzj implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT sekaw implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT stoeckic implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT yaakobib implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT frenjejohana implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT lichikang implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT petrassorichardd implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion AT seguinfredrickhampton implosionexperimentsusingglassablatorsfordirectdriveinertialconfinementfusion |