Establishment of Cross-Polarization Scattering Method for Measurement of Internal Magnetic-Field Fluctuations in Plasmas
Establishment of Cross-Polarization Scattering Method for Measurement of Internal Magnetic-Field Fluctuations in Plasmas
批准号:
09680453
负责人:
MASE Atsushi
金额:
$2.37万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
1997
资助国家:
日本
项目状态:
已结题
起止时间:
1997 至 1998
中文摘要
点击翻译按钮获取中文摘要
英文摘要
1)During the period of this research project, a cross-polarization scattering diagnostic system with frequency of 8-18 GHz has been fabricated and applied to the central-cell plasma of the GAMMA 10 tandem mirror in order to measure internal magnetic-field fluctuations. The system utilized dual-polarized horns as a transmitter and a receiver that enabled the simultaneous measurement of the CPS and reflectometry, The density and magnetic fluctuations of the waves were evaluated from both the CPS and reflectometry.2)The CPS diagnostic system and reflectometer were applied to the measurement of electromagnetic plasma waves in the ion cyclotron range of frequencies (ICRF) and low-frequency drift-wave mode.i)The fluctuations associated with ICRF waves were observed to investigate the physics of the wave absorption of RF heating power and the excitation of an Alfven ion cyclotron (AIC) instability. The fluctuation-induced transport due to the AIC mode was evaluated from the end-loss flux and … More temperature of electrons during the excitation of the AIC mode.ii)As the plasma beta and temperature anisotropy increased. the amplitude of the AIC mode became large . and the discrete modes appeared. The adjacent MG modes coupled to excite another low-frequency wave that caused the saturation of the plasma beta.iii)The wavelet transform was applied to the analyses of the CPS and reflectometry signals. The wavelet time-frequency spectrum and cross-correlation function allowed us to estimate the rotation speed of the low-frequency waves (-3 km./s) in the ExB direction, and the propagation speed (-1000 km/s) of the AIC modes from the center towards the magnetic plugs.iv)The k -omega) spectra of the low-frequency wave (< 40 kHz) were obtained from the angular distribution of the scattered waves. From the ridge of the k -omega spectra the.dispersion relation of the electromagnetic drift wave was confirmed for the first time.4)Computational study on the CPS of electromagnetic waves produced by magnetic fluctuations was performed. It was shown that the peak frequencies in the spectral signals of the mode-converted waves were determined from the Bragg resonance condition in the wave number between the incident wave, scattered wave, and magnetic fluctuations for relatively short-wavelength localized magnetic fluctuations. Less
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
登录
查看更多内容
A.Mase, M.Kobayashi, N.Oyama, T.Tokuzawa, H.Inutake, M.Yokoi, A.Itakura, H.Hojo, L.G.Bruskin, M.Ichimura, and T.Tamano: ""Reflectometric Measurement of Density and Magnetic Fluctuations in ICRF-Driven Waves"" Fusion Eng.Design. Vol.34-35. 371-374 (1997)
A.Mase、M.Kobayashi、N.Oyama、T.Tokuzawa、H.Inutake、M.Yokoi、A.Itakura、H.Hojo、L.G.Bruskin、M.Ichimura 和 T.Tamano:“密度的反射测量”
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
L.G.Bruskin, A.Mase, and T.Tamano: ""Resolution of Microwave Correlation Reflectometry"" Fusion Eng.Design. Vol.34-35. 441-445 (1997)
L.G.Bruskin、A.Mase 和 T.Tamano:“微波相关反射测量的分辨率”Fusion Eng.Design。
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
Y., Kogi・A., Mase・et al.: "Cross-Polarization Scattering from Low-Frequency Waves in a Tandem Mirror Plasma" Japanese Journal of applied Physics. 36・5A. L587-L589 (1997)
Y.、Kogi・A.、Mase・等人:“串联镜等离子体中低频波的交叉偏振散射”日本应用物理学杂志 36・5A(1997 年)。
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
S.Kubota, T.Onuma, M.Kato, A.Mase, T.Tokuzawa, N.Oyama, A.Itakura, H.Hojo, L.G.Bruskin, T.Tamano, K.Yatsu, C.W.Domier, and N.C.Luhmann, Jr.: ""Initial Measurements from an Ultrashort-Pulse Reflectometer on GAMMA 10"" Jpn.J.Appl.Phys. Vol.38, No.2B. L202-L
S.Kubota、T.Onuma、M.Kato、A.Mase、T.Tokuzawa、N.Oyama、A.Itakura、H.Hojo、L.G.Bruskin、T.Tamano、K.Yatsu、C.W.Domier 和 N.C.Luhmann,
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
Y.Nakashima,M.Shoji,et al.: "Charge-Exchange Neutral Particle Analysis on the ICRF-Heated Plasmas in the GAMMA 10 Tandem Mirror" Fusion Engineering and Design. 34-35. 555-559 (1997)
Y.Nakashima、M.Shoji 等人:“GAMMA 10 串联镜中 ICRF 加热等离子体的电荷交换中性粒子分析”聚变工程与设计。
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
共 106 条
Development of advanced microwave biological detection systems
-
批准号:20360186
-
项目类别:Grant-in-Aid for Scientific Research (B)
-
资助金额:$11.73万
-
财政年份:2008
-
负责人:MASE Atsushi
-
依托单位:
Study of Plasma Fluctuation Visualization Using Imaging Reflectometry
-
批准号:11680495
-
项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$2.43万
-
财政年份:1999
-
负责人:MASE Atsushi
-
依托单位:
Development of Advanced Millimeter - Wave Plasma Diagnostics
-
批准号:10044125
-
项目类别:Grant-in-Aid for Scientific Research (B).
-
资助金额:$2.43万
-
财政年份:1998
-
负责人:MASE Atsushi
-
依托单位:
Study of Ultrashort-Pulse Microwave-Plasma Interaction and its Application to Plasma Diagnostics
-
批准号:08558044
-
项目类别:Grant-in-Aid for Scientific Research (A)
-
资助金额:$5.12万
-
财政年份:1996
-
负责人:MASE Atsushi
-
依托单位:
Plasma Diagnostics Using Millimeter-and Submillimeter-Wave Two-Dimensional Imaging Array
-
批准号:05558056
-
项目类别:Grant-in-Aid for Developmental Scientific Research (B)
-
资助金额:$2.62万
-
财政年份:1993
-
负责人:MASE Atsushi
-
依托单位:
CONTROL OF TURBULENT WAVES BY END PLATE BIASING
-
批准号:04452307
-
项目类别:Grant-in-Aid for General Scientific Research (B)
-
资助金额:$2.56万
-
财政年份:1992
-
负责人:MASE Atsushi
-
依托单位:
海外基金