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J. Bourgade, A. Costley, R. Reichle, E. Hodgson, W. Hsing, V. Glebov, M. Decreton, R. Leeper, J. Leray, M. Dentan et al., Rev. Sci. Instrum. 79, 10F304 (2008).
T. Kakuta, T. Shikama, T. Nishitani, B. Brichard, A. Krassilinikov, A. Tomashuk, S. Yamamoto, and S. Kasai, J. Nucl. Mater. 307, 1277 (2002).
H. Tojo, T. Hatae, T. Sakuma, T. Hamano, and K. Itami, J. Plasma Fusion Res. SERIES 9, 288 (2010).
H. Tojo, T. Hatae, T. Hamano, T. Sakuma, and K. Itami, Rev. Sci. Instrum. 84, 093506 (2013).
O. Smith, C. Gowers, P. Nielsen, and H. Salzmann, Rev. Sci. Instrum. 68, 725 (1997).
E. Yatsuka, T. Hatae, and Y. Kusama, J. Plasma Fusion Res. SERIES 9, 12 (2010).
L. Giudicotti and R. Pasqualotto, Nucl. Fusion 54, 043005 (2014).
L. Giudicotti, R. Pasqualotto, and A. Fassina, Rev. Sci. Instrum. 85, 11D823 (2014).
I. Yamada, R. Yasuhara, H. Funaba, K. Narihara, H. Hayashi, E. Yatsuka, T. Hatae, H. Tojo, M. Yoshikawa, and T. Minami, in Proceedings of 40th EPS Conference on Plasma Physics (European Physical Society, 2013), Vol. O2, p. 112.
J. Hiratsuka, A. Ejiri, M. Hasegawa, Y. Nagashima, Y. Takase, H. Tojo, T. Yamaguchi, T. Ambo, H. Kakuda, T. Sakamoto et al., Plasma Fusion Res. 6, 1202133 (2011).
T. Hatae, O. Naito, M. Nakatsuka, and H. Yoshida, Rev. Sci. Instrum. 77, 10E508 (2006).
H. Tojo, T. Hatae, and K. Itami, J. Instrum. 7, C05004 (2012).
H. Tojo, A. Ejiri, J. Hiratsuka, T. Yamaguchi, Y. Takase, K. Itami, and T. Hatae, Rev. Sci. Instrum. 83, 023507 (2012).
H. Tojo, A. Ejiri, J. Hiratsuka, T. Yamaguchi, Y. Takase, K. Itami, and T. Hatae, J. Instrum. 07, P04005 (2012).
H. Tojo, I. Yamada, R. Yasuhara, E. Yatsuka, H. Funaba, T. Hatae, H. Hayashi, and K. Itami, Rev. Sci. Instrum. 85, 11D865 (2014).
W. H. Press, Numerical Recipes 3rd Edition: The Art of Scientific Computing (Cambridge University Press, 2007).
P. R. Bevington and D. K. Robinson, Data Reduction and Error Analysis for the Physical Sciences (WCB/ McGraw-Hill, 1992).
Y. Takase, A. Ejiri, H. Kakuda, T. Oosako, T. Shinya, T. Wakatsuki, T. Ambo, H. Furui, T. Hashimoto, J. Hiratsuka et al., Nucl. Fusion 53, 063006 (2013).
T. Yamaguchi, A. Ejiri, J. Hiratsuka, Y. Takase, Y. Nagashima, O. Watanabe, T. Sakamoto, T. Ohsako, B. I. An, H. Kurashina et al., Plasma Fusion Res. 5, S2092 (2010).
J. Hiratsuka, A. Ejiri, M. Hasegawa, Y. Nagashima, Y. Takase, H. Tojo, T. Yamaguchi, T. Ambo, H. Furui, T. Hashimoto, H. Kakuda, K. Koto, T. Oosako, T. Sakamoto et al., Plasma Fusion Res. 7, 2402092 (2012).
A. Ejiri, T. Yamaguchi, J. Hiratsuka, Y. Takase, M. Hasegawa, and K. Narihara, Plasma Fusion Res. 5, S2082 (2010).
H. Yamada et al., Nucl. Fusion 51, 4021 (2011).
A. Komori, H. Yamada, S. Imagawa, O. Kaneko, K. Kawahata, K. Mutoh, N. Ohyabu, Y. Takeiri, K. Ida, T. Mito et al., Fusion Sci. Technol. 58, 1 (2010).
T. Seki, T. Mutoh, K. Saito, H. Kasahara, R. Seki, S. Kamio, G. Nomura, Y. Zhao, S. Wang et al., Plasma Fusion Res. 10, 3405046 (2015).
A. Komori, J. Phys.: Conf. Ser. 257, 012025 (2010).
J. Hiratsuka, A. Ejiri, M. Hasegawa, Y. Nagashima, K. Nakamura, Y. Takase, H. Togashi, H. Tojo, T. Yamaguchi, and TST-2 group, Plasma Fusion Res. 10, 1402007 (2015).

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This paper evaluates the accuracy of electron temperature measurements and relative transmissivities of double-pass Thomson scattering diagnostics. The electron temperature ( ) is obtained from the ratio of signals from a double-pass scattering system, then relative transmissivities are calculated from the measured and intensity of the signals. How accurate the values are depends on the electron temperature ( ) and scattering angle (), and therefore the accuracy of the values was evaluated experimentally using the Large Helical Device (LHD) and the Tokyo spherical tokamak-2 (TST-2). Analyzing the data from the TST-2 indicates that a high and a large scattering angle () yield accurate values. Indeed, the errors for scattering angle = 135° are approximately half of those for = 115°. The method of determining the in a wide range spanning over two orders of magnitude (0.01–1.5 keV) was validated using the experimental results of the LHD and TST-2. A simple method to provide relative transmissivities, which include inputs from collection optics, vacuum window, optical fibers, and polychromators, is also presented. The relative errors were less than approximately 10%. Numerical simulations also indicate that the measurements are valid under harsh radiation conditions. This method to obtain can be considered for the design of Thomson scattering systems where there is high-performance plasma that generates harsh radiation environments.


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