title: Direct measurement of x-ray flux for a pre-specified highly-resolved region in hohlraum.
abstract: 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.
authors.forename: Kuan
authors.initials: K
authors.lastname: Ren
authors.forename: Shenye
authors.initials: S
authors.lastname: Liu
authors.forename: Lifei
authors.initials: L
authors.lastname: Hou
authors.forename: Huabing
authors.initials: H
authors.lastname: Du
authors.forename: Guoli
authors.initials: G
authors.lastname: Ren
authors.forename: Wenyi
authors.initials: W
authors.lastname: Huo
authors.forename: Longfei
authors.initials: L
authors.lastname: Jing
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhao
authors.forename: Zhiwen
authors.initials: Z
authors.lastname: Yang
authors.forename: Minxi
authors.initials: M
authors.lastname: Wei
authors.forename: Keli
authors.initials: K
authors.lastname: Deng
authors.forename: Li
authors.initials: L
authors.lastname: Yao
authors.forename: Zhichao
authors.initials: Z
authors.lastname: Li
authors.forename: Dong
authors.initials: D
authors.lastname: Yang
authors.forename: Chen
authors.initials: C
authors.lastname: Zhang
authors.forename: Ji
authors.initials: J
authors.lastname: Yan
authors.forename: Guohong
authors.initials: G
authors.lastname: Yang
authors.forename: Sanwei
authors.initials: S
authors.lastname: Li
authors.forename: Shaoen
authors.initials: S
authors.lastname: Jiang
authors.forename: Yongkun
authors.initials: Y
authors.lastname: Ding
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.forename: Ke
authors.initials: K
authors.lastname: Lan