2024-03-29T02:33:02Z
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
Hatae, Takaki
Tojo, Hiroshi
Enokuchi, Akito
Hamano, Takashi
Shimizu, Katsuhiro
Kawashima, Hisato
open access
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).
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.
AIP Publishing
2015-08
eng
journal article
VoR
http://hdl.handle.net/2237/00030855
https://nagoya.repo.nii.ac.jp/records/28666
https://doi.org/10.1063/1.4929514
0034-6748
Review of Scientific Instruments
86
8
083511
https://nagoya.repo.nii.ac.jp/record/28666/files/1_4929514.pdf
application/pdf
2.6 MB
2019-11-07