The removal of co-deposited hydrocarbon films from plasma facing components using high-power pulsed flashlamp irradiation
The removal of co-deposited hydrocarbon films from plasma facing components using high-power pulsed flashlamp irradiation
复制标题
使用高功率脉冲闪光灯照射从面向等离子体的部件上去除共沉积的碳氢化合物薄膜
DOI：
10.1016/j.jnucmat.2004.10.128
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发表时间：
2005
影响因子：
3.1
通讯作者：
K. Watkins
中科院分区：
文献类型：
--
作者：
K. Gibson;G. Counsell;C. Curran;M. Forrest;M. Kay;K. Watkins
碳基材料在托卡马克第一壁组件中的使用导致在分流组件上形成碳氢化合物沉积物，这可能导致未来聚变装置中高水平的氚潴留。UMIST的实验已经证明，使用高功率氙灯光源进行光子清洗是去除此类薄膜的有效方法，并且代表了国际热核实验反应堆（ITER）运行的良好候选技术。研究表明，当影响阈值在1.9 ~ 2.5J/cm2之间时，膜被有效去除。清洗过程的副产品，包括颗粒和气体，分别使用粒径测定法和四极杆质谱法进行了表征。结果表明，在清洗过程中产生的主要气体产物为氢气、甲烷、乙炔、乙烯、乙烷和二氧化碳，并且在2 ~ 20μm范围内产生了大量的颗粒。
The use of carbon-based materials for first wall components in tokamaks results in the formation of hydrocarbon deposits on divertor components that could lead to a high level of tritium retention in future fusion devices. Experiments at UMIST have demonstrated that photonic cleaning using high power Xenon flashlamp sources is an efficient method for removing such films and represents a good candidate technology for international thermonuclear experimental reactor (ITER) operations. Studies have shown that effective film removal occurs at a fluence threshold of between 1.9 and 2.5J/cm2. The by-products of the cleaning process, both particulates and gases, have been characterised using particle sizing spectrometry and quadrupole mass spectrometry respectively. It is found that hydrogen, methane, acetylene, ethylene, ethane and carbon dioxide are the principal gaseous products produced during the cleaning process, which also produces a significant fraction of particulates in the size range 2–20μm.