Fabrication of solid CH-CD multilayer microspheres for inertial confinement fusion

作     者：Meifang Liu Xing Ai Yiyang Liu Qiang Chen Shuai Zhang Zhibing He Yawen Huang Qiang Yin 

作者机构：Research Center of Laser FusionChina Academy of Engineering PhysicsMianyangChina State Key Laboratory of Envronment-Friendly Energy MaterialsSouthwest University of Science and TechnologyMianyangChina 

出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)

年 卷 期：2021年第6卷第2期

页      面：28-36页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：funding from the National Natural Science Foundation of China(Grant Nos.51703212 and 52073264) the Open Project of the State Key Laboratory of Environment-Friendly Energy Materials(Grant Nos.18kfhg03 and 19kfhg02) a project supported by the CAEP Foundation(Grant No.PY20200117) 

主　　题：method. multilayer beads 

摘      要：Deuterated polymer microspheres can be used as a neutron source in conjunction with lasers because thermonuclear fusion neutrons can be produced efficiently by collisions of the resulting energetic deuterium ions.A new type of solid deuterated polymer microsphere with a carbon hydrogen–carbon deuterium(CH-CD)multilayer has been designed for preparing the target for inertial confinement fusion(ICF)*** fabricate these solid CH-CD multilayer microspheres,CH beads are first fabricated by a microfluidic technique,and the CD coating layer is prepared by a plasma polymerization *** polystyrene(PS)and poly(α-methylstyrene)(PAMS)are used as the material sources for the CH *** effects of the PS and PAMS materials on the quality of the solid CH beads and the resulting CH-CD multilayer polymer microspheres are *** solid PS beads have better sphericity and a smoother surface,but large vacuoles are observed in solid PS-CD multilayer microspheres owing to the presence of residual fluorobenzene in the beads and a glass transition temperature of the solid PS beads that is lower than the temperature of plasma ***,solidPAMSbeads are more suitable as a mandrel for fabricating solid CH-CD multilayer polymer *** CH-CD multilayer microspheres with specified size have been successfully prepared by controlling the droplet size and the CD deposition rate and deposition *** with the design value,the diameter deviation of the inner CH beads and the thickness deviation of the CD layer can be controlled within 20μmand 2μm,***,an approach has been developed to fabricate solid CH-CD multilayer microspheres that meet the physical design requirements for ICF.