Spectroscopic Measurement Using Wide Range UV/Visible Spectroscopic System GAMMA 10
| Autor: | M. Yoshikawa, Yuusuke Kubota, Teruji Cho, K. Matama, T. Kobayashi |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Nuclear and High Energy Physics
Electron density Materials science business.industry Mechanical Engineering Plasma medicine.disease_cause Electron cyclotron resonance Spectral line Optics Nuclear Energy and Engineering Physics::Plasma Physics Impurity Physics::Space Physics Plasma parameter medicine General Materials Science Atomic physics business Radiant intensity Ultraviolet Civil and Structural Engineering |
| Zdroj: | Fusion Science and Technology. 51:253-255 |
| ISSN: | 1943-7641 1536-1055 |
| DOI: | 10.13182/fst07-a1366 |
| Popis: | Impurity spectra have been measured to evaluate impurity behavior and plasma parameter in the tandem mirror GAMMA 10. An ultraviolet and visible (UV/visible) spectroscopic system has been designed to measure the impurity emission intensity in detail. It consists of two spectrometers to obtain an entire wavelength range of UV/visible impurity spectra in one plasma shot. The time-varying emission intensity of radiation spectra have been measured successfully with electron cyclotron resonance heating (ECRH) or pellet injection plasmas. We evaluate radiation loss with ECRH from the GAMMA 10 plasma in the UV/visible range; further we estimate the electron density and temperature after applying the spectral intensity data measured from the pellet injection experiment to a collisional-radiative model. |
| Databáze: | OpenAIRE |
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