title: New two-dimensional space-resolving flux detection technique for measurement of hohlraum inner radiation in Shenguang-III prototype.
abstract: 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.
authors.affiliation: School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
authors.forename: Kuan
authors.initials: K
authors.lastname: Ren
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Shenye
authors.initials: S
authors.lastname: Liu
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Huabing
authors.initials: H
authors.lastname: Du
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Lifei
authors.initials: L
authors.lastname: Hou
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Longfei
authors.initials: L
authors.lastname: Jing
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Zhiwen
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Minxi
authors.initials: M
authors.lastname: Wei
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Keli
authors.initials: K
authors.lastname: Deng
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Li
authors.initials: L
authors.lastname: Yao
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Guohong
authors.initials: G
authors.lastname: Yang
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Sanwei
authors.initials: S
authors.lastname: Li
authors.affiliation: Institute of Applied Physics and Computational Mathematics, Beijing 100088, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Lan
authors.affiliation: Institute of Applied Physics and Computational Mathematics, Beijing 100088, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.affiliation: Key Laboratory of Microelectronics Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, People's Republic of China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Research Center of Laser Fusion, China Academy of Engineering Physics, P.O. Box 919-986, Mianyang 621900, China.
authors.forename: Yongkun
authors.initials: Y
authors.lastname: Ding
authors.affiliation: School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Yi