基于托卡马克装置第一壁材料的回旋辐射反射研究  

Research on Cyclotron Emission Reflection based on the First Wall Materials of Tokamak Devices

作　　者：张帅 赵毅航 任士鑫 王嵎民 Zhang Shuai;Zhao Yihang;Ren Shixin;Wang Yumin(Hebei Key Laboratory of Compact Fusion,Langfang 065001,China;ENN Science and Technology Development Co.,Ltd.,Langfang 065001,China)

机构地区：[1]河北省紧凑型聚变重点实验室,廊坊065001 [2]新奥科技发展有限公司,廊坊065001

出　　处：《核安全》2025年第2期23-29,共7页Nuclear Safety

摘　　要：本文采用理论计算与材料性能测试相结合的方法,对钨合金和碳碳复合材料两种第一壁材料回旋辐射(~100 GHz频率微波)的反射性能进行了系统评估。研究结果表明,两种第一壁材料在100 GHz微波频率下的反射率均超过95%,可满足目前氢硼聚变装置的第一壁设计需求。两种第一壁材料的100 GHz微波穿透深度仅为微米量级,远小于工程设计厚度(5-10 mm),显示出良好的微波防护效果。温度变化对两种材料的反射率影响较小,从20℃升至500℃,反射率变化均小于0.5%。微波频率由65 GHz升至255 GHz,两种第一壁材料的反射率均有所下降,但变化幅度有限(钨合金降幅约0.17%,碳碳复合材料降幅约2.51%)。本研究为氢硼聚变装置第一壁材料的设计提供了重要参考。This article employs a combination of theoretical calculations and material performance testing to systematically evaluate the reflection performance of cyclotron radiation(~100 GHz frequency microwaves)for two types of first-wall materials tungsten alloys and Carbon-Carbon(C/C)composite materials.The study results indicate that both first-wall materials exhibit a reflection rate exceeding 95%at 100 GHz microwave frequency,which meets the current design requirements for the first wall of hydrogen-boron fusion devices.The penetration depth of 100 GHz microwaves for both first-wall materials is only in the micrometer range,significantly smaller than the engineering design thickness(5-10 mm),demonstrating effective microwave shielding.Changes in temperature have a minimal impact on the reflection rate of both materials,with a change of less than 0.5%from 20℃to 500℃.As the microwave frequency increases from 65 GHz to 255 GHz,the reflection rate of both first-wall materials decreases,but the variation is limited(a reduction of about 0.17%for tungsten alloys and about 2.51%for C/C composite).This research provides important references for the design of first-wall materials in hydrogen-boron fusion devices.

关 键 词：回旋辐射 第一壁 钨合金 碳碳复合材料 

分 类 号：TK018[动力工程及工程热物理]