Effect of recombination and ionization on the analysis of Mach and single probes in un-magnetized and magnetized plasmas of MAP-II and DiPS devices
- Authors
- Chung, Kyu Sun; Kado, Shinichiro; Woo, Hyun Jong; Seo, Yoon Jong; Shikama, Tatsuo; Scotti, Filippo; Choi, Gyoung Seok; Lho, Taehyeop
- Issue Date
- Jun-2007
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- plasma flow; probes; recombination; divertor plasma
- Citation
- JOURNAL OF NUCLEAR MATERIALS, v.363, pp.1403 - 1408
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NUCLEAR MATERIALS
- Volume
- 363
- Start Page
- 1403
- End Page
- 1408
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/180072
- DOI
- 10.1016/j.jnucmat.2007.01.264
- ISSN
- 0022-3115
- Abstract
- For the analysis of atomic processes such as recombination and ionization in the divertor plasmas, we have developed a fast-scanning multiple probe system, which is composed of single, Mach and emissive probes along with Thomson scattering system at the material and plasma (MAP)-II divertor simulator with low magnetic field (about 200 G). Measured spatial variations of electron density, electron temperature, flow velocity and plasma potential will be given in comparison with those by Thomson scattering method. To analyze the data, a new fluid model on the ion collection to a probing object in un-magnetized plasmas is developed including electron-ion recombination, molecular activated recombination and ionization. This system is applied to another divertor simulator, divertor plasma simulator (DiPS), with higher magnetic field (up to 2 kG).
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