ION TEMPERATURE-MEASUREMENTS IN A TOKAMAK BY COLLECTIVE THOMSON SCATTERING

被引：4

作者：

SIEGRIST, MR ^{[1
]}

BEHN, R ^{[1
]}

DICKEN, D ^{[1
]}

DUVAL, BP ^{[1
]}

HACKMANN, J ^{[1
]}

JOYE, B ^{[1
]}

LISTER, J ^{[1
]}

NIESWAND, C ^{[1
]}

POCHELON, A ^{[1
]}

SOUMAGNE, G ^{[1
]}

YUAN, DC ^{[1
]}

机构：

[1] UNIV DUSSELDORF,INST LASER & PLASMAPHYS,W-4000 DUSSELDORF 1,GERMANY

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 69卷 / 04期

关键词：

D O I：

10.1063/1.348772

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Collective Thomson scattering, using a high-power pulsed D2O laser at 385-mu-m and a heterodyne receiver system, has provided local ion temperature (T(i)) measurements of the plasma in the tokamak chauffage Alfven (TCA) tokamak. Recent improvements in the noise-equivalent power of the Schottky barrier diode mixers permitted us to achieve a typical precision of +/- 12% for a single shot measurement at densities above 10(20) m-3. Even at densities of standard TCA discharges (5 x 10(19) m-3) the uncertainty is better than +/- 25%. For the interpretation of the measured spectra and the evaluation of T(i) the local value of the electron temperature (T(e)) is an important parameter. Therefore, T(e) was measured simultaneously by incoherent Thomson scattering at 0.694-mu-m during a series of shots. The density was obtained from a far-infrared interferometer. An independent measurement of T(i) on TCA can be obtained from a neutral particle analyzer. Comparison of the results from the two methods showed good agreement. The precision of a T(i) measurement depends strongly on the plasma density. Since an uncertainty of +/- 25% at standard densities may still not be regarded as satisfactory, further investigations using a numerical simulation code have been carried out to find ways of improvement.

引用

页码：1993 / 1998

页数：6

共 50 条

[1] LOCAL ION TEMPERATURE-MEASUREMENTS IN THE TOKAMAK UNITOR BY COLLECTIVE THOMSON SCATTERING
BORN, M
DICKEN, HD
HACKMANN, J
UHLENBUSCH, J
PLASMA PHYSICS AND CONTROLLED FUSION, 1993, 35 (03) : 391 - 396
[2] PRECISION OF ION TEMPERATURE-MEASUREMENTS IN A TOKAMAK PLASMA USING COLLECTIVE THOMSON SCATTERING - A NUMERICAL STUDY
KRUG, PA
BEHN, R
SALITO, SA
SIEGRIST, MR
PLASMA PHYSICS AND CONTROLLED FUSION, 1990, 32 (09) : 713 - 727
[3] ION TEMPERATURE-MEASUREMENTS IN TOKAMAK PLASMAS BY RUTHERFORD SCATTERING
VANBLOKLAND, AAE
BARBIAN, EP
DONNE, AJH
VANDERGRIFT, AF
GRIMBERGEN, TWM
OYEVAAR, T
SCHULLER, FC
TAMMEN, HF
VANDERVEN, HW
VIJVERBERG, TF
DEWINTER, FDA
BERTSCHINGER, G
COSLER, A
KORTEN, M
REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (06): : 3359 - 3368
[4] Implementation of collective Thomson scattering on the TEXTOR tokamak for energetic ion measurements
Porte, L
Bindslev, H
Hoekzema, F
Machuzak, J
Woskov, P
Van Eester, D
REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (01): : 1148 - 1150
[5] Measurements of Intrinsic Ion Bernstein Waves in a Tokamak by Collective Thomson Scattering
Korsholm, S. B.
Stejner, M.
Bindslev, H.
Furtula, V.
Leipold, F.
Meo, F.
Michelsen, P. K.
Moseev, D.
Nielsen, S. K.
Salewski, M.
de Baar, M.
Delabie, E.
Kantor, M.
Buerger, A.
PHYSICAL REVIEW LETTERS, 2011, 106 (16)
[6] Measurements of plasma composition in the TEXTOR tokamak by collective Thomson scattering
Stejner, M.
Korsholm, S. B.
Nielsen, S. K.
Salewski, M.
Bindslev, H.
Brezinsek, S.
Furtula, V.
Leipold, F.
Michelsen, P. K.
Meo, F.
Moseev, D.
Buerger, A.
Kantor, M.
de Baar, M.
PLASMA PHYSICS AND CONTROLLED FUSION, 2012, 54 (01)
[7] Plasma rotation and ion temperature measurements by collective Thomson scattering at ASDEX Upgrade
Stejner, M.
Nielsen, S. K.
Jacobsen, A. S.
Korsholm, S. B.
Leipold, F.
McDermott, R. M.
Michelsen, P. K.
Rasmussen, J.
Salewski, M.
Schubert, M.
Stober, J.
Wagner, D. H.
PLASMA PHYSICS AND CONTROLLED FUSION, 2015, 57 (06)
[8] Fast-ion dynamics in the TEXTOR tokamak measured by collective Thomson scattering
Bindslev, H.
Nielsen, S. K.
Porte, L.
Hoekzema, J. A.
Korsholm, S. B.
Meo, F.
Michelsen, P. K.
Michelsen, S.
Oosterbeek, J. W.
Tsakadze, E. L.
Westerhof, E.
Woskov, P.
PLASMA PHYSICS AND CONTROLLED FUSION, 2007, 49 (12B) : B551 - B562
[9] Fast-ion dynamics in the TEXTOR tokamak measured by collective Thomson scattering
Bindslev, H.
Nielsen, S. K.
Porte, L.
Hoekzema, J. A.
Korsholm, S. B.
Meo, F.
Michelsen, P. K.
Michelsen, S.
Oosterbeek, J. W.
Tsakadze, E. L.
Westerhof, E.
Woskov, P.
PHYSICAL REVIEW LETTERS, 2006, 97 (20)
[10] FEASIBILITY STUDY OF BULK ION TEMPERATURE-MEASUREMENTS ON JET BY MEANS OF COLLECTIVE SCATTERING OF GYROTRON RADIATION
ORSITTO, F
REVIEW OF SCIENTIFIC INSTRUMENTS, 1990, 61 (10): : 3093 - 3094

← 1 2 3 4 5 →