2013
DOI: 10.1063/1.4798602
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Conceptual design of the tangentially viewing combined interferometer-polarimeter for ITER density measurements

Abstract: One of the systems planned for the measurement of electron density in ITER is a multi-channel tangentially viewing combined interferometer-polarimeter (TIP). This work discusses the current status of the design, including a preliminary optical table layout, calibration options, error sources, and performance projections based on a CO2/CO laser system. In the current design, two-color interferometry is carried out at 10.59 μm and 5.42 μm and a separate polarimetry measurement of the plasma induced Faraday effec… Show more

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Cited by 42 publications
(43 citation statements)
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“…Therefore, the resultant density be underestimated. 14 The relativistic effect can be corrected if we know the electron temperature, as in the other interferometric methodologies.…”
Section: Basic Conceptmentioning
confidence: 99%
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“…Therefore, the resultant density be underestimated. 14 The relativistic effect can be corrected if we know the electron temperature, as in the other interferometric methodologies.…”
Section: Basic Conceptmentioning
confidence: 99%
“…12 These characteristics enable high density plasma measurements without the fringe jump errors. The basic concepts is a) Present address: Teikyo University, [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] Misaki-machi, Omuta-shi, Fukuoka 836-8505, Japan. Electronic mail: arakawa@fmt.teikyo-u.ac.jp.…”
Section: Introductionmentioning
confidence: 99%
“…Since 1970, several different techniques have been proposed for polarimetric measurement and one of those techniques, the three-wave technique, a variation of which was first proposed by Dodel and Kunz in 1976, 3 has been largely developed in recent years. This technique has intrinsic high time response and phase resolution.…”
Section: Introductionmentioning
confidence: 99%
“…Figure 3 shows the raw data of the CO 2 and the HeNe arm measured in the above setup. Assuming all errors to be normally distributed one can find the error for the integral electron density by quadratic error propagation [10].…”
Section: Phase Noisementioning
confidence: 99%