Carbon dust formation from re-deposited layers in high-density hydrogen/helium plasmas in the NAGDIS-II device
Carbon dust formation from re-deposited layers in high-density hydrogen/helium plasmas in the NAGDIS-II device
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DOI：
10.1016/j.jnucmat.2004.10.032
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发表时间：
2005-03
影响因子：
3.1
通讯作者：
N. Ohno;Y. Kobayashi;T. Sugimoto;S. Takamura
中科院分区：
文献类型：
--
作者：
N. Ohno;Y. Kobayashi;T. Sugimoto;S. Takamura
Formation of carbon dust particles on a graphite surface irradiated by a high-density hydrogen plasma and a mixed hydrogen/helium plasma has been investigated in the NAGDIS-II linear divertor plasma simulator. Carbon dust particles are generated at the center region of the graphite surface facing the high-density plasma. No dust particles are formed in the peripheral region. These observations indicate that the re-deposition process of the hydrocarbon ions due to a strong plasma flow at the center of the plasma column is one of the key factors determining the dust growth as well as chemical sputtering.
