ERROR ANALYSIS OF RIJNHUIZEN TOKAMAK PROJECT THOMSON SCATTERING DATA
ERROR ANALYSIS OF RIJNHUIZEN TOKAMAK PROJECT THOMSON SCATTERING DATA
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RIJNHUIZEN托卡马克项目汤姆逊散射数据的误差分析
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
N. Cardozo
中科院分区：
文献类型：
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作者：
M. Beurskens;C. J. Barth;C. Chu;N. Cardozo
在 Rijnhuizen 托卡马克项目中，双脉冲多位汤姆逊散射诊断仪自 1996 年起开始运行。它已安装用于研究电子温度 (Te) 和密度 (ne) 的小尺度结构。该诊断以高空间分辨率（半高全宽为 3 mm，即短半径的 2%）和高精度（在 50 eV-6 keV 范围内为 Te 的 3%–4% 和 ne 的 2%–3%，ne=5×1019 m−3）测量 Te 和 ne。在本文中，对统计偏差和系统偏差进行了广泛的误差分析。发现检测支路的仪表功能对噪声有平滑作用。这减少了每个空间位置上 Te 和 ne 测量的统计误差，因为仪器的分辨率是过采样的。整个诊断的仪器曲线的长尾对Te和ne测定的系统偏差有显着影响。然而，它并不影响小...的相对大小。
At the Rijnhuizen tokamak project a double pulse multiposition Thomson scattering diagnostic has been operational since 1996. It has been installed for the study of small scale structures in electron temperature (Te) and density (ne). This diagnostic measures Te and ne with high spatial resolution (3 mm full width at half maximum, i.e., 2% of the minor radius) and high accuracy (3%–4% of Te and 2%–3% of ne in the range of 50 eV–6 keV and ne=5×1019 m−3.) In this article an extensive error analysis is performed on both statistical and systematic deviations. It is found that the instrument function of the detection branch has a smoothing effect on the noise. This reduces the statistical error on the Te and ne measurements on each spatial position, because the resolution of the instrument is oversampled. The long tail of the instrument profile of the entire diagnostic has a significant effect on the systematic deviations in the Te and ne determination. However, it does not affect the relative size of the smal...