强激光与粒子束2025，Vol.37Issue(8)：38-43,6.DOI:10.11884/HPLPB202537.240429
局域空间辐射流测量一致性实验研究
Experimental verification of consistency of radiation flux measurement in localized spatial regions
摘要
Abstract
In experimental studies of indirect drive inertial confinement fusion,both flat-response X-ray detector(FXRD)and space-resolving flux detector(SRFD)are commonly used to measure the radiation flux.The SRFD can measure radiation flux in localized spatial regions,thus avoiding signal disruption from non-targeted regions.However,direct experimental evidence has long been lacking to determine the consistency between SRFD and FXRD.In this paper,we introduce the experimental design of consistency measurement of the SRFD detector and FXRD detector at Shenguang 100 kJ facility,based on a small-plane target,which considers the field-of-view and signal amplitude of the two detectors.The experimental results show that the average difference in the radiation flux obtained by the two detectors is approximately 4.6%,which shows good consistency.Finally,the radiation flux given by the radiation hydrodynamic simulation is reasonably close to the experiment,with some differences in the behavior at the rising edge and decreasing edge.It is possibly related to the details of the simulation model.This work provides a good foundation for experimental studies related to the precision measurement of X-ray radiation flux in a local spatial region.关键词
X射线辐射流/再发射流/诊断技术/惯性约束聚变/金平面靶Key words
X-ray flux/re-emitted flux/diagnostic technology/inertial confinement fusion/gold planar target分类
数理科学引用本文复制引用
刘耀远,李朝光,杨轶濛,车兴森,任宽,王峰,谢旭飞,李志超,杨冬,龚韬,李琦,郑金华,秦雪龙,侯立飞,李三伟,赵航,潘凯强..局域空间辐射流测量一致性实验研究[J].强激光与粒子束,2025,37(8):38-43,6.基金项目
国家自然科学基金项目(12205272、12175210、12275251、12305262、12035002) （12205272、12175210、12275251、12305262、12035002）
中物院激光聚变研究中心青年人才基金项目(RCFCZ6-2022-2) （RCFCZ6-2022-2）
国家安全学术基金项目(U2430207) （U2430207）
国家重点研发计划项目(2023YF1608400、2024YFA1613600) （2023YF1608400、2024YFA1613600）
