Study of Oxygen Ions Behavior by Using Collisional-Radiative Model in GAMMA 10
| Autor: | Masayuki Yoshikawa, Yuusuke Kubota, K. Matama, I. Murakami, T. Kato, T. Kobayashi, Teruji Cho |
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| Rok vydání: | 2007 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Tandem Spectrometer 020209 energy Mechanical Engineering Astrophysics::Cosmology and Extragalactic Astrophysics 02 engineering and technology medicine.disease_cause 01 natural sciences Spectral line 010305 fluids & plasmas Nuclear Energy and Engineering Physics::Plasma Physics Impurity 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Radiative transfer Oxygen ions medicine General Materials Science Plasma diagnostics Atomic physics Ultraviolet Civil and Structural Engineering |
| Zdroj: | Fusion Science and Technology. 51:256-258 |
| ISSN: | 1943-7641 1536-1055 |
| DOI: | 10.13182/fst07-a1367 |
| Popis: | In the fusion plasmas, impurity behavior is important issue because of radiation loss and plasma-wall interactions. Spectroscopic measurements were carried out in the GAMMA 10 tandem mirror in order to investigate impurity transfer and plasma diagnostics. Oxygen ions were strongly emitted in the central cell of GAMMA 10. Then we have developed the collisional-radiative model for lower charge state of oxygen ions. The spatial profiles of OII, OIII, OIV and OV spectra were observed by the absolutely calibrated ultraviolet/visible spectrometer. Further more, spatial density profiles of O + , O 24 , O 3+ and O 4+ were evaluated by the comparison of measurements and the CR-model calculation. |
| Databáze: | OpenAIRE |
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