A simple model for P2 asymmetry analysis on the Shenguang 100 kJ laser facility
P2 is the remaining principal asymmetry in laser-driven hohlraums. A simple analytic model for P2 asymmetry on the Shenguang 100 kJ laser facility is presented, which is based on hohlraum geometry, wall albedo, plasma expansion, and shell velocity. The calculated P2 asymmetry from the model is in reasonably good agreement with experimental data from pre-pulse, shell flight and stagnation stages. The P2 model appears to capture the essential physics governing drive symmetry and has been implemented to guide new symmetric implosion designs, enabling a more rapid convergence to a symmetric implosion than the conventional trial-and-error approach.
Authors
- Zhongjing Chen
- Jiamin Yang (ORCID: https://orcid.org/0000-0002-9784-0000)
- Yaoyuan Liu (ORCID: https://orcid.org/0000-0002-8846-1527)
- Q Y Li
- Yunsong Dong (ORCID: https://orcid.org/0000-0002-5442-0743)
- Tao Gong (ORCID: https://orcid.org/0000-0001-6885-6962)
- Yudong Pu (ORCID: https://orcid.org/0000-0003-1159-6519)
- Dong Sheng Yang (ORCID: https://orcid.org/0000-0003-4245-7204)
- H. Zhao (ORCID: https://orcid.org/0000-0002-2356-367X)
- K. Q. Pan (ORCID: https://orcid.org/0000-0002-7440-9330)
- Sanwei Li
- Xuelong Qin (ORCID: https://orcid.org/0009-0007-5089-3694)
- Weiming Yang
- Zhichao Li
Institutions
- China Academy of Engineering Physics (CN)
Publication Details
- Journal
- Matter and Radiation at Extremes
- Published
- 2026-07-16
- DOI
- https://doi.org/10.1063/5.0309655
- Primary Topic
- Laser-Plasma Interactions and Diagnostics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China