A novel three-axis cylindrical hohlraum designed for inertial confinement fusion ignition

Longyu Kuang; Hang Li; Longfei Jing; Zhiwei Lin; Lu Zhang; Liling Li; Yongkun Ding; Shaoen Jiang; Jie Liu; Jian Zheng

doi:10.1038/srep34636

A novel three-axis cylindrical hohlraum designed for inertial confinement fusion ignition

Sci Rep. 2016 Oct 5:6:34636. doi: 10.1038/srep34636.

Authors

Longyu Kuang^{1

2

3}, Hang Li^{1

2

3}, Longfei Jing¹, Zhiwei Lin¹, Lu Zhang¹, Liling Li¹, Yongkun Ding^{1

2

3

4}, Shaoen Jiang^{1

2

3

4}, Jie Liu^{3

4

5}, Jian Zheng^{2

4}

Affiliations

¹ Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
² CAS Key Laboratory of Basic Plasma Physics and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
³ Center of Fusion Energy Science and Technology, Beijing 100088, China.
⁴ Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, China.
⁵ Institute of Applied Physics and Computational Mathematics, Beijing 100088, China.

Abstract

A novel ignition hohlraum for indirect-drive inertial confinement fusion is proposed, which is named three-axis cylindrical hohlraum (TACH). TACH is a kind of 6 laser entrance holes (LEHs) hohlraum, which is orthogonally jointed of three cylindrical hohlraums. Laser beams are injected through every entrance hole with the same incident angle of 55°. A view-factor simulation result shows that the time-varying drive asymmetry of TACH is less than 1.0% in the whole drive pulse period without any supplementary technology. Coupling efficiency of TACH is close to that of 6 LEHs spherical hohlraum with corresponding size. Its plasma-filling time is close to that of typical cylindrical ignition hohlraum. Its laser plasma interaction has as low backscattering as the outer cone of the cylindrical ignition hohlraum. Therefore, TACH combines most advantages of various hohlraums and has little predictable risk, providing an important competitive candidate for ignition hohlraum.

Publication types

Research Support, Non-U.S. Gov't