论文标题
汤姆森散射在大的等离子体设备上
Thomson scattering on the Large Plasma Device
论文作者
论文摘要
我们已经开发了一种非汤姆森散射诊断，用于测量大型等离子体设备上的电子密度和温度。带有可调槽滤波器的三重光栅光谱仪用于区分流浪光的微弱散射信号。在本文中，我们描述了通过拉曼散射的诊断及其校准，并介绍了使用完全委托系统执行的第一个测量值。根据排放条件的不同，测得的密度和温度从4.0 $ \ times $ 10 $^{12} $ cm $ $^{ - 3} $到2.8 $ \ times $ 10 $^{13} $ cm $ $^{ - 3} $，分别从1.2 ev到6.8 ev。还讨论了与血浆参数和排放平均的测量误差的变化。
We have developed a non-collective Thomson scattering diagnostic for measurements of electron density and temperature on the Large Plasma Device. A triple grating spectrometer with a tunable notch filter is used to discriminate the faint scattering signal from the stray light. In this paper we describe the diagnostic and its calibration via Raman scattering, and present the first measurements performed with the fully commissioned system. Depending on the discharge conditions, the measured densities and temperatures range from 4.0$\times$10$^{12}$ cm$^{-3}$ to 2.8$\times$10$^{13}$ cm$^{-3}$, and from 1.2 eV to 6.8 eV, respectively. The variation of the measurement error with plasma parameters and discharges averaged is also discussed.
