Open AccessDirect measurement of x-ray flux for a pre-specified highly-resolved region in hohlraum
Author(s) -
Kuan Ren,
Shenye Liu,
Lifei Hou,
Huabing Du,
Guoli Ren,
Wenyi Huo,
Longfei Jing,
Yang Zhao,
Zhiwen Yang,
Minxi Wei,
Keli Deng,
Yao Li,
Zhichao Li,
Dong Yang,
Chen Zhang,
Jiwang Yan,
Yang Gao,
Sanwei Li,
Shaoen Jiang,
Yongkun Ding,
Jie Liu,
Ke Lan
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.0a1072
Subject(s) - hohlraum , optics , flux (metallurgy) , laser , physics , detector , radiation flux , x ray detector , materials science , radiation , metallurgy
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.