@article{oai:repo.qst.go.jp:00048596,
 author = {東條, 寛 and 山田一博 and 安原亮 and 江尻晶 and 平塚, 淳一 and 富樫央 and 谷塚, 英一 and 波多江, 仰紀 and 舟場久芳 and 林, 浩 and 高瀬雄一 and 伊丹, 潔 and 東條 寛 and 平塚 淳一 and 谷塚 英一 and 波多江 仰紀 and 伊丹 潔},
 issue = {9},
 journal = {Review of scientific instruments},
 month = {Sep},
 note = {This paper evaluates the accuracy of electron temperature measurements and relative transmissivities of double-pass Thomson scattering diagnostics. The electron temperature (Te) is obtained from the ratio of signals from a double-pass scattering system, then relative transmissivities are calculated from the measured Te and intensity of the signals. How accurate the values are depends on the electron temperature (Te) 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 Te and a large scattering angle yield accurate values. Indeed, the errors for scattering angle 135deg.  are approximately half of those for 115deg . The method of determining the Te in a wide Te 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 Te measurements are valid under harsh radiation conditions. This method to obtain Te can be considered for the design of Thomson scattering systems where there is high-performance plasma that generates harsh radiation environments.},
 pages = {093502-1--093502-11},
 title = {Validations of calibration-free measurements of electron temperature using double-pass Thomson scattering diagnostics from theoretical and experimental aspects},
 volume = {87},
 year = {2016}
}