Journals
  Publication Years
  Keywords
Search within results Open Search
Please wait a minute...
For Selected: Toggle Thumbnails
A High-adiabat and High-velocity Capsule Imploded by High Hybrid-drive Pressure for Inertial Confinement Fusion
Jiwei LI, Lifeng WANG, Zhiyuan LI, Yaohua CHEN, Yan XU, Minqing HE, Bin LI, Junfeng WU, Wenhua YE, Xiantu HE
Chinese Journal of Computational Physics    2023, 40 (2): 181-188.   DOI: 10.19596/j.cnki.1001-246x.8626
Abstract62)   HTML7)    PDF (4694KB)(876)      

We report new progress in hybrid-drive (HD) ignition target design with a high-adiabat (>3.0) and high-velocity (>400 km·s-1). First, two-shock indirect-drive (ID) radiation temperature with lower peak 200 eV ablates and pre-compresses the capsule. Later, direct-drive lasers of power 340 TW in flat-top pulse are absorbed near critical surface, combined with the radiation to drive the implosions. The "snowplow" effect in the HD heaps low ID corona density into a high HD plasma density at the radiation ablation front where maximal HD pressure reaches over 500 Mbar. Such high pressure further drives capsule imploding with peak velocity about 424.5 km·s-1 and fuel aidabat about 3.4, and the high-velocity and high-adiabat lower the hotspot pressure required to ignition lower to about 200 Gbar at a low convergent ratio 23 to suppress hydrodynamic instabilities. 2D simulation also predicts the growth factor (GF) at hotspot is very small < 10, beneficial for a robust hotspot and further burn.

Table and Figures | Reference | Related Articles | Metrics