Artículo
High-resolution tungsten spectroscopy relevant to the diagnostic of high-temperature tokamak plasmas
Autor/es | Rzadkiewicz, J.
Yang, Y. Kozioł, K. O’Mullane, M.G. Patel, A. Jet Contributors García Muñoz, Manuel ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2018-05 |
Fecha de depósito | 2020-07-15 |
Publicado en |
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Resumen | The x-ray transitions in Cu- and Ni-like tungsten ions in the 5.19–5.26 A wavelength range that are relevant ˚ as a high-temperature tokamak diagnostic, in particular for JET in the ITER-like wall configuration, have been ... The x-ray transitions in Cu- and Ni-like tungsten ions in the 5.19–5.26 A wavelength range that are relevant ˚ as a high-temperature tokamak diagnostic, in particular for JET in the ITER-like wall configuration, have been studied. Tungsten spectra were measured at the upgraded Shanghai- Electron Beam Ion Trap operated with electron-beam energies from 3.16 to 4.55 keV. High-resolution measurements were performed by means of a flat Si 111 crystal spectrometer equipped by a CCD camera. The experimental wavelengths were determined with an accuracy of 0.3–0.4 mA. The wavelength of the ground-state transition in Cu-like tungsten from the ˚ 3p53d104s4d [(3/2,(1/2,5/2)2]1/2 level was measured. All measured wavelengths were compared with those measured from JET ITER-like wall plasmas and with other experiments and various theoretical predictions including COWAN, RELAC, multiconfigurational Dirac-Fock (MCDF), and FAC calculations. To obtain a higher accuracy from theoretical predictions, the MCDF calculations were extended by taking into account correlation effects (configuration-interaction approach). It was found that such an extension brings the calculations closer to the experimental values in comparison with other calculations. |
Identificador del proyecto | 2015GB117000
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Cita | Rzadkiewicz, J., Yang, Y., Kozioł, K., O’Mullane, M.G., Patel, A., Jet Contributors, y García Muñoz, M. (2018). High-resolution tungsten spectroscopy relevant to the diagnostic of high-temperature tokamak plasmas. Physical Review A, 97 (5), 1-9. |
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PhysRevA.97.052501.pdf | 884.6Kb | ![]() | Ver/ | |