惯性约束聚变软X射线在线标定系统概念设计  

Conceptual design of soft X-ray online calibration system for ICF

作　　者：曹磊峰[1] 杨祖华[1] 陈纪辉 魏来[1] 范全平[1] 陈勇[1] 张强强[1] 周维民[1] Cao Leifeng;Yang Zuhua;Chen Jihui;Wei Lai;Fan Quanping;Chen Yong;Zhang Qiangqiang;Zhou Weimin(Science&Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,CAEP,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院激光聚变研究中心等离子体物理重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2020年第11期83-91,共9页High Power Laser and Particle Beams

基　　金：国家重大科技专项项目;国家自然科学基金项目(11375160);国家重大科学仪器设备开发专项项目(2012YQ130125)。

摘　　要：长期以来,惯性约束聚变(ICF)研究软X射线诊断科学仪器设备的元器件标定工作主要依赖同步辐射光源X射线辐射计量站进行。该类装置通常与用于开展ICF研究的大型激光装置分处两地,难以满足ICF研究软X射线元器件实时实地的标定应用需求。另外,由于同步辐射和ICF激光等离子体产生的X射线辐射特性存在较大差异,同步辐射计量站的标定结果事实上也不能完全反映元器件在ICF实验应用中的计量响应特性。本文首先介绍一种基于单光学元件的软X射线紧凑型无谐波光源单色化技术,以此为基础提出研制基于ICF激光等离子体X射线源的同源、同几何位形、双束比较校准的多能量通道光源单色化系统,用于ICF应用软X射线元器件的在线标定。新系统一方面可望满足ICF软X射线元器件实时实地的标定应用需求;另一方面,其提供的标定光束的技术特征将最大可能地接近ICF激光等离子体X射线辐射本身。配备相应的X射线二极管(XRD)和标准探测器之后,该系统将形成一套具有在线自校准功能的新型多通道δ能量响应软X射线能谱仪。For a long time,the calibration of soft X-ray diagnostic equipment components of ICF research mainly depends on the synchrotron radiation source X-ray metrology station.This kind of device is usually located in a different place from the large laser facility for ICF research,thus it is difficult to meet the real-time field calibration application requirements of ICF’s research soft X-ray components research.In addition,in view of the great difference between the radiation characteristics of synchrotron radiation X-ray and ICF laser plasma X-ray,the calibration results of synchrotron radiation measurement station can not completely measure the response characteristics of components in ICF experiments.In this paper,a kind of monochromatic technology for compact non-harmonic soft X-ray source is introduced.Based on this technology,a monochromatic system of multi energy channel source based on ICF laser plasma X-ray source with homologous,geometric configuration and double beam comparison calibration is developed for on-line calibration of soft X-ray components in ICF applications.The new system is expected to meet the requirements of real-time calibration application of ICF’s soft X-ray components,while the technical characteristics of its calibration beam will be as close as possible to that of the ICF laser plasma X-ray radiation.

关 键 词：惯性约束聚变 软X射线 标定 激光等离子体 等离子体诊断 

分 类 号：O536[理学—等离子体物理] O434.12[理学—物理]