Lifei Hou
Chinese Academy of Engineering
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Featured researches published by Lifei Hou.
Physical Review Letters | 2016
Wen Yi Huo; Z. Li; Yaohua Chen; Xufei Xie; Ke Lan; Jie Liu; Guoli Ren; Yukun Li; Yunqi Liu; Xiaohua Jiang; Dong Yang; Sanwei Li; Liang Guo; Huan Zhang; Lifei Hou; Huabing Du; Xiaoshi Peng; Tao Xu; Chaoguang Li; Xiayu Zhan; Guanghui Yuan; Baibin Jiang; Huang L; Kai Du; Zhao R; Li P; Wang W; Su J; Yongkun Ding; X. T. He
The first spherical hohlraum energetics experiment is accomplished on the SGIII-prototype laser facility. In the experiment, the radiation temperature is measured by using an array of flat-response x-ray detectors (FXRDs) through a laser entrance hole at four different angles. The radiation temperature and M-band fraction inside the hohlraum are determined by the shock wave technique. The experimental observations indicate that the radiation temperatures measured by the FXRDs depend on the observation angles and are related to the view field. According to the experimental results, the conversion efficiency of the vacuum spherical hohlraum is in the range from 60% to 80%. Although this conversion efficiency is less than the conversion efficiency of the near vacuum hohlraum on the National Ignition Facility, it is consistent with that of the cylindrical hohlraums used on the NOVA and the SGIII-prototype at the same energy scale.
Physics of Plasmas | 2016
Xufei Xie; Zhichao Li; Sanwei Li; Yunbao Huang; Longfei Jing; Dong Yang; Wenyi Huo; Yaohua Chen; Ke Lan; Liang Guo; Xiaohua Jiang; Lifei Hou; Huabing Du; Yonggang Liu; Huan Zhang; Xiaoshi Peng; Tao Xu; Chaoguang Li; Xiayu Zhan; Feng Wang; Jiamin Yang; Shenye Liu; Shaoen Jiang; Yongkun Ding
An octahedral spherical hohlraum is a promising candidate in target design for inertial confinement fusion study, because of its potential superiority in uniform radiation and efficient coupling [Lan et al., Phys. Plasmas 21, 010704 (2014)]. Before the experimental investigation for octahedral spherical hohlraum, an energetics experiment is accomplished on the Shenguang-III prototype laser facility by using spherical hohlraums with two cylindrical laser entrance holes. Time evolution of the radiation temperature is obtained with flat response X-ray diode detectors at four different viewing angles with demonstrated repeatability of the measurements. The experimental observations are successfully explained by using a phenomenological model which considers not only the radiation flux contributed from the laser ablated and radiation ablated plasma from hohlraum wall, but also that contributed from the filling plasma inside the hohlraum. This method proves to be a simple but effective way to interpret the time...
Optics Express | 2015
Kuan Ren; Shenye Liu; Lifei Hou; Huabing Du; Guoli Ren; Wenyi Huo; Longfei Jing; Yang Zhao; Zhiwen Yang; Minxi Wei; Keli Deng; Li Yao; Zhichao Li; Dong Yang; Chen Zhang; Ji Yan; Guohong Yang; Sanwei Li; Shaoen Jiang; Yongkun Ding; Jie Liu; Ke Lan
A space-resolving flux detector (SRFD) is developed to measure the X-ray flux emitted from a specified region in hohlraum with a high resolution up to 0.11mm for the first time. This novel detector has been used successfully to measure the distinct X-ray fluxes emitted from hot laser spot and cooler re-emitting region simultaneously, in the hohlraum experiments on SGIII prototype laser facility. According to our experiments, the ratio of laser spot flux to re-emitted flux shows a strong time-dependent behavior, and the area-weighted flux post-processed from the measured laser spot flux and re-emitting wall flux agrees with that measured from Laser Entrance Hole by using flat-response X-ray detector (F-XRD). The experimental observations is reestablished by our two-dimensional hydrodynamic simulations and is well understood with the power balance relationship.
Physics of Plasmas | 2018
Huasen Zhang; Wei Jiang; Fengjun Ge; Peng Song; Shiyang Zou; Tianxuan Huang; Sanwei Li; Dong Yang; Zhichao Li; Lifei Hou; Liang Guo; Xingsen Che; Huabing Du; Xufei Xie; Xiaoan He; Chaoguang Li; Weiyi Zha; Tao Xu; Yonggang Liu; Huiyue Wei; Xiangming Liu; Zhongjing Chen; Xing Zhang; Ji Yan; Yudong Pu; Xiaoshi Peng; Yulong Li; Peijun Gu; Wudi Zheng; Jie Liu
The cylindrical vacuum hohlraum energy at the SGIII laser facility [X. T. He and W. Y. Zhang, Eur. Phys. J. D 44, 227 (2007) and W. Zheng et al., High Power Laser Sci. Eng. 4, e21 (2016)] is investigated for the first time. The hohlraum size and the laser energy are intermediate between the Nova and NIF typical hohlraum experiments. It is found that the SGIII hohlraum exhibits an x-ray conversion efficiency of about 85%, which is more close to that of the NIF hohlraum. The LARED simulations of the SGIII hohlraum underestimate about 15% of the radiation flux measured from the laser entrance hole, while the capsule radiation drive inferred from the x-ray bangtime is roughly consistent with the experiments. The underestimation of the SGIII hohlraum radiation flux is mainly caused by the more enclosed laser entrance hole in the LARED simulation. The comparison between the SGIII and NIF hohlraum simulations by LARED indicates that the LARED generally underestimates the measured radiation flux by 15% for the hi...
Review of Scientific Instruments | 2015
Kuan Ren; Shenye Liu; Huabing Du; Lifei Hou; Longfei Jing; Yang Zhao; Zhiwen Yang; Minxi Wei; Keli Deng; Li Yao; Guohong Yang; Sanwei Li; Ke Lan; Jie Liu; Xiaoli Zhu; Yongkun Ding; Lin Yi
The space-resolving measurement of X-ray flux from a specific area (laser spot, re-emitting wall, or capsule) inside the hohlraum is an ongoing and critical problem in indirectly driven inertial-confinement fusion experiments. In this work, we developed a new two-dimensional space-resolving flux detection technique to measure the X-ray flux from specific areas inside the hohlraum by using the time- and space-resolving flux detector (SRFD). In two typical hohlraum experiments conducted at the Shenguang-III prototype laser facility, the X-ray flux and radiation temperature from an area 0.2 mm in diameter inside the hohlraum were measured through the laser entrance hole (LEH). The different flux intensities and radiation temperatures detected using the SRFD from the inner area of the LEH were compared with the result measured using the flat-response X-ray detector from the entire LEH. This comparison was also analyzed theoretically. The inner area detected using the SRFD was found to be the re-emitting wall area alone. This important improvement in space-resolving X-ray flux measurement will enhance the current X-ray flux space characterization techniques, thereby furthering the quantitative understanding of X-ray flux space behavior in the hohlraum.
Review of Scientific Instruments | 2018
Xufei Xie; Huabing Du; Jinwen Chen; Shenye Liu; Zhichao Li; Dong Yang; Yunbao Huang; Kuan Ren; Lifei Hou; Sanwei Li; Liang Guo; Xiaohua Jiang; Wenyi Huo; Yaohua Chen; Guoli Ren; Ke Lan; Feng Wang; Shaoen Jiang; Yongkun Ding
Space-resolving flux detection is an important technique for the diagnostic of the radiation field within the hohlraum in inertial confinement fusion, especially for the radiation field diagnostic in the novel spherical hohlraum with octahedral six laser entrance holes (LEHs), where localized measurements are necessary for the discrimination of the radiation flux from different LEHs. A novel space-resolving flux detector (SRFD) is developed at the SG-III laser facility for the radiation flux measurement in the first campaign of the octahedral spherical hohlraum energetics experiment. The principle and configuration of the SRFD system is introduced. The radiation flux from the wall of a gas-filled octahedral spherical hohlraum is measured for the first time by placing the SRFD system at the equatorial position of the SG-III laser facility, aiming at the hohlraum wall through one of the six LEHs. The absolute radiation flux from the re-emission area on the hohlraum wall is measured, and good consistency is found between the experimental data and the calculated data from a three-dimensional view factor analysis.
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology | 2010
Lifei Hou; Guohong Yang; Shenye Liu
A class of wide band-gap semiconductor offers an attractive alternative to Si and X-ray diode (XRD) detector technologies for x-ray detection in Inertial Confinement Fusion (ICF) experiments. Because diamond presents high thermal conductivity, resistance and breakdown field, fast charge collection, low leakage current, wide band-gap, low dielectric constant, large carrier drift velocity and outstanding radiation hardness. Using chemical vapor deposited (CVD) technology, 1 mm×1 mm×2 mm, 1 mm×1 mm×3 mm diamond was synthesized. And the detectors were fielded with metal-semiconductor-metal structure. Characteristics of the detectors have been studied on a pulse laser equipment. The results indicate that the rise time and FWHM of the detector reach 60 ps and 120 ps respectively.
Matter and Radiation at Extremes | 2016
Wenyi Huo; Zhichao Li; Dong Yang; Ke Lan; Jie Liu; Guoli Ren; Sanwei Li; Zhiwen Yang; Liang Guo; Lifei Hou; Xuefei Xie; Yukun Li; Keli Deng; Zheng Yuan; Xiayu Zhan; Guanghui Yuan; Haijun Zhang; Baibin Jiang; Lizhen Huang; Kai Du; Runchang Zhao; Ping Li; Wei Wang; Jingqin Su; Yongkun Ding; X. T. He; Weiyan Zhang
Physical Review Letters | 2018
Wen Yi Huo; Zhichao Li; Yaohua Chen; Xufei Xie; Guoli Ren; Hui Cao; Shu Li; Ke Lan; Jie Liu; Yongsheng Li; Sanwei Li; Liang Guo; Yonggang Liu; Dong Yang; Xiaohua Jiang; Lifei Hou; Huabing Du; Xiaoshi Peng; Tao Xu; Chaoguang Li; Xiayu Zhan; Zhebin Wang; Keli Deng; Qiangqiang Wang; Bo Deng; Feng Wang; Jiamin Yang; Shenye Liu; Shaoen Jiang; Guanghui Yuan
arXiv: Plasma Physics | 2018
Longyu Kuang; Hang Li; Shaoen Jiang; Longfei Jing; Jianhua Zheng; Liling Li; Zhiwei Lin; Lu Zhang; Yulong Li; Xiangming Liu; Xiaoshi Peng; Qi Tang; Xiayu Zhan; Zhurong Cao; Qiangqiang Wang; Bo Deng; Keli Deng; Lifei Hou; Huabing Du; Wei Jiang; Zhongjing Chen; Dong Yang; Feng Wang; Jiamin Yang; Lin Gao; Haijun Zhang; Juan Zhang; Jun Xie; Guanghui Yuan; Zhibing He