汤姆孙散射系统中发黑材料的表面散射特性测量  

Measurement of Surface Scattering Characteristics of Black Materials in Thomson Scattering System

作　　者：王鹏[1] 袁鹏[1] 谭伟强 郑坚[1,2] Peng Wang;Peng Yuan;Weiqiang Tan;Jian Zheng(Key Laboratory of Geospace Environment of Chinese Academy of Sciences,Department of Modern Physics,University of Science and Technology of China,Hefei,Anhui 230026,China;IFSA Collaborative Innovation Center,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]中国科学技术大学工程与应用物理系近地空间重点实验室,安徽合肥230026 [2]上海交通大学IFSA协同创新中心,上海200240

出　　处：《光学学报》2020年第21期199-205,共7页Acta Optica Sinica

基　　金：国家重大科研装备研制项目(ZDYZ2013-2);国家重点研发计划(2017YFA0403300)。

摘　　要：本文研制一套全自动散射特性测试平台,并使用该测试平台对汤姆孙散射诊断系统中杂散光吸光材料的表面散射特性开展实验测量研究。在1064nm的波段下,该测试平台对双向反射分布函数的本底噪声水平优于2×10-5sr-1。利用该测试平台测量反射镜、不锈钢、发黑铝合金和发黑涂层等多种材料的表面散射特性。依据相关测量结果,“科大一环”汤姆孙散射诊断系统采用了AvianBlack-S发黑涂料以及MetalVelvetTM发黑铝箔用于吸收杂散光。利用测量结果给出多种材料的ABg模型参数,为杂散光追踪模拟计算提供必要数据。This paper developes a set of automatic platform for testing scattering characteristics and uses this test platform for the experimental measurements on the surface scattering characteristics of stray light absorbing materials in a Thomson scattering diagnostic system. In the 1064 nm band, the noise floor of the test platform for the bidirectional reflection distribution function is better than 2×10 -5 sr -1. Furthermore, this test platform is employed to measure the surface scattering characteristics of standard white plates, stainless steel, black aluminum alloys, black paints, and other materials. The experimental results show that the Thomson scattering diagnostic system on the “Keda Torus” setup adopted Avian Black-S black paint and Metal VelvetTM black foil to absorb stray light. In the end, the measurement results are utilized to provide ABg model parameters for a variety of materials, offering necessary data for the ray tracing simulation associated with stray light.

关 键 词：散射 双向反射分布函数测量 双向反射计 发黑材料 杂散光 

分 类 号：O536[理学—等离子体物理]