Effects of fuel-capsule shimming and drive asymmetry on inertial-confinement-fusion symmetry and yield [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 539.7 Atomic and nuclear physics
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. National Nuclear Security Administration ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2016
• Mô tả vật lý: Size: Article No. 032705 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 267784
• Chủ đề: 1. 70 plasma physics and fusion technology; 2. Asymmetric matters; 3. Helim-3; 4. Image sensors; 5. X-ray imaging

Tóm tắt

Three orthogonal proton emission imaging cameras were used to study the 3D effects of low-mode drive asymmetries and target asymmetries on nuclear burn symmetry and yield in direct-drive, inertial-confinement-fusion experiments. The fusion yield decreased quickly as the burn region became asymmetric due to either drive or capsule asymmetry. Furthermore, measurements and analytic scaling are used to predict how intentionally asymmetric capsule shells could improve performance by compensating for drive asymmetry when it cannot be avoided (such as with indirect drive or with polar direct drive).