Zobrazeno 1 - 10
of 36
pro vyhledávání: '"DONGXIAN LAI"'
Publikováno v:
Laser and Particle Beams. 30:175-182
An initial study and design on ignition elliptical hohlraum (ellipraum) is given by using the expended plasma-filling model with criterions. As a result, in an ellipraum with a smaller ratio of major-to-minor axis (a/b), the radius ratio of ellipraum
Publikováno v:
Laser and Particle Beams. 28:421-427
In this paper, the plasma-filling model was extrapolated to the case of a hohlraum driven by a shaped laser pulse, and this extended model was used to obtain an initial design of the hohlraum size. A density criterion ofne = 0.1 was used for designin
Publikováno v:
Laser and Particle Beams. 28:75-81
In ignition targets designs, U or U based cocktail hohlraum are usually used because the Rosseland mean opacity of U is higher than for Au at the radiation temperature for ignition. However, it should be noted that the opacity of U is obviously lower
Autor:
Wenbing Pei, Tieqiang Chang, Tinggui Feng, Yan Xu, Dongxian Lai, Yongkun Ding, Ke Lan, Shuanggui Li, Shaoeng Jiang
Publikováno v:
Laser and Particle Beams. 24:495-501
Radiation transfer in low-density foam is influenced by the external radiation field which impacts on the foam when the size of plasma created in laboratory is not large to be opatical thick. The radiation transfers of different photon groups are sen
Autor:
Wenbing Pei, Peijun Gu, Weiyan Zhang, Zhijian Zheng, Qingsheng Duan, Tieqiang Chang, Tinggui Feng, Dongxian Lai, Yongkun Ding, Guangnan Chen, Guangyu Wang, Shaoping Zhu, Tianxuan Huan, Yongmin Zheng, Xian-Tu He
Publikováno v:
Physics of Plasmas. 9:4744-4748
Recently, hohlraum experiments were performed at the Shenguang-II (SG-II) laser facility [Lin et al., Chin. J. Lasers B10, Suppl. IV6 (2001)]. The measured maximum radiation temperature was 170 eV for the standard hohlraum and 150 eV for a 1.5-scaled
Autor:
Zhenglin Chen, Yongkun Ding, Hansheng Peng, Kexi Sun, Dongxian Lai, Wenyong Miao, Hongbin Wang, Zhijian Zheng, Jinxiu Cheng
Publikováno v:
IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340).
Summary form only given. The measurement of intense, low-energy X-ray pulses has received a significant degree of attention in the last few years because the Z pinch and other plasma devices have a great development. In this paper, the authors introd
Autor:
Zhijian Zheng, Jinxiu Cheng, Zhenglin Chen, Dongxian Lai, Kexi Sun, Hongbin Wang, Yongkun Ding, Hansheng Peng, Wenyong Miao
Publikováno v:
IEEE Conference Record - Abstracts. 2002 IEEE International Conference on Plasma Science (Cat. No.02CH37340).
Summary form only given. Radiation energy transport and X-ray redistribution inside a high-Z hohlraum is a key in indirect-drive inertial confinement fusion. Experiments on x-ray redistribution along axis of gold cylindrical cavities have been perfor
Publikováno v:
Physics of Plasmas. 21:052704
A recent publication [K. Lan et al., Phys. Plasmas 21, 010704 (2014)] proposed a spherical hohlraum with six laser entrance holes of octahedral symmetry at a specific hohlraum-to-capsule radius ratio of 5.14 for inertial fusion study, which has robus
Publikováno v:
Physics of Plasmas. 21:010704
We propose a spherical hohlraum with octahedral six laser entrance holes at a specific hohlraum-to-capsule radius ratio of 5.14 for inertial fusion study, which has robust high symmetry during the capsule implosion and low backscatter without supplem
Publikováno v:
EPJ Web of Conferences, Vol 59, p 06003 (2013)
Besides the routinely used broad-band x-ray spectrometer (Dante or SXS), ablative shock-wave method is often used to diagnose the radiation fields of laser-driven Hohlraums. The x-ray ablation process of Aluminum and Titanium is studied numerically w