Single-side-band heterodyne differential-phase reflectometry in QUEST

H. Idei; K. Dono; Y. Wataya; K. Nagata; S. Kawasaki; H. Zushi; K. Hanada; K. N. Sato; K. Nakamura; M. Sakamoto; M. Hasegawa; Y. Higashizono; Y. Takase; T. Maekawa; O. Mitarai; Y. Kishimoto; H. Nakashima; A. Higashijima

doi:10.1109/ICIMW.2009.5324785

Single-side-band heterodyne differential-phase reflectometry in QUEST

H. Idei, K. Dono, Y. Wataya, K. Nagata, S. Kawasaki, H. Zushi, K. Hanada, K. N. Sato, K. Nakamura, M. Sakamoto, M. Hasegawa, Y. Higashizono, Y. Takase, T. Maekawa, O. Mitarai, Y. Kishimoto, H. Nakashima, A. Higashijima

Division of Nuclear Fusion Dynamics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.

Original language	English
Title of host publication	34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
DOIs	https://doi.org/10.1109/ICIMW.2009.5324785
Publication status	Published - 2009
Event	34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 - Busan, Korea, Republic of Duration: Sept 21 2009 → Sept 25 2009

Publication series

Name	34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009

Other

Other	34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009
Country/Territory	Korea, Republic of
City	Busan
Period	9/21/09 → 9/25/09

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Communication

Access to Document

10.1109/ICIMW.2009.5324785

Cite this

Idei, H., Dono, K., Wataya, Y., Nagata, K., Kawasaki, S., Zushi, H., Hanada, K., Sato, K. N., Nakamura, K., Sakamoto, M., Hasegawa, M., Higashizono, Y., Takase, Y., Maekawa, T., Mitarai, O., Kishimoto, Y., Nakashima, H., & Higashijima, A. (2009). Single-side-band heterodyne differential-phase reflectometry in QUEST. In 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 [5324785] (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009). https://doi.org/10.1109/ICIMW.2009.5324785

Single-side-band heterodyne differential-phase reflectometry in QUEST. / Idei, H.; Dono, K.; Wataya, Y. et al.

34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009. 2009. 5324785 (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Idei, H, Dono, K, Wataya, Y, Nagata, K, Kawasaki, S, Zushi, H, Hanada, K, Sato, KN, Nakamura, K, Sakamoto, M, Hasegawa, M, Higashizono, Y, Takase, Y, Maekawa, T, Mitarai, O, Kishimoto, Y, Nakashima, H & Higashijima, A 2009, Single-side-band heterodyne differential-phase reflectometry in QUEST. in 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009., 5324785, 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009, 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009, Busan, Korea, Republic of, 9/21/09. https://doi.org/10.1109/ICIMW.2009.5324785

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abstract = "In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.",

author = "H. Idei and K. Dono and Y. Wataya and K. Nagata and S. Kawasaki and H. Zushi and K. Hanada and Sato, {K. N.} and K. Nakamura and M. Sakamoto and M. Hasegawa and Y. Higashizono and Y. Takase and T. Maekawa and O. Mitarai and Y. Kishimoto and H. Nakashima and A. Higashijima",

note = "Copyright: Copyright 2010 Elsevier B.V., All rights reserved.; 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009 ; Conference date: 21-09-2009 Through 25-09-2009",

year = "2009",

doi = "10.1109/ICIMW.2009.5324785",

language = "English",

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T1 - Single-side-band heterodyne differential-phase reflectometry in QUEST

AU - Idei, H.

AU - Dono, K.

AU - Wataya, Y.

AU - Nagata, K.

AU - Kawasaki, S.

AU - Zushi, H.

AU - Hanada, K.

AU - Sato, K. N.

AU - Nakamura, K.

AU - Sakamoto, M.

AU - Hasegawa, M.

AU - Higashizono, Y.

AU - Takase, Y.

AU - Maekawa, T.

AU - Mitarai, O.

AU - Kishimoto, Y.

AU - Nakashima, H.

AU - Higashijima, A.

PY - 2009

Y1 - 2009

N2 - In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.

AB - In a spherical tokamak (ST), an operating frequency of the reflectometry is low due to the low magnetic field of the device. In the large ST, the reflected wave signal level is weak in the large propagating length, and a direct coupling between the launching and receiving antennae may become comparable level to the reflected signal due to the diffraction effect in the low operating frequency at the ST. New single-side-band heterodyne differential-phase reflectometry is proposed on a large ST device of the QUEST, to remove the direct coupling effect in an amplitude modulation reflectometry.

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BT - 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009

T2 - 34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009

Y2 - 21 September 2009 through 25 September 2009

ER -

Single-side-band heterodyne differential-phase reflectometry in QUEST

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