2024-03-29T07:22:27Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00028666
2023-01-16T04:21:12Z
673:674:675
Performance of JT-60SA divertor Thomson scattering diagnostics
Kajita, Shin
94094
Hatae, Takaki
94095
Tojo, Hiroshi
94096
Enokuchi, Akito
94097
Hamano, Takashi
94098
Shimizu, Katsuhiro
94099
Kawashima, Hisato
94100
For the satellite tokamak JT-60 Super Advanced (JT-60SA), a divertor Thomson scattering measurement system is planning to be installed. In this study, we improved the design of the collection optics based on the previous one, in which it was found that the solid angle of the collection optics became very small, mainly because of poor accessibility to the measurement region. By improvement, the solid angle was increased by up to approximately five times. To accurately assess the measurement performance, background noise was assessed using the plasma parameters in two typical discharges in JT-60SA calculated from the SONIC code. Moreover, the influence of the reflection of bremsstrahlung radiation by the wall is simulated by using a ray tracing simulation. The errors in the temperature and the density are assessed based on the simulation results for three typical field of views.
journal article
AIP Publishing
2015-08
application/pdf
Review of Scientific Instruments
8
86
083511
0034-6748
https://nagoya.repo.nii.ac.jp/record/28666/files/1_4929514.pdf
eng
https://doi.org/10.1063/1.4929514
Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in (Review of Scientific Instruments. v.86, n.8, 2015, p.083511) and may be found at (http://dx.doi.org/10.1063/1.4929514).