Bespamyatnov I O, Rowan W L, Liao K T, Granetz R S
Fusion Research Center, The University of Texas at Austin, Austin, Texas 78712, USA.
Rev Sci Instrum. 2010 Oct;81(10):10D709. doi: 10.1063/1.3475707.
A novel integrated charge exchange recombination spectroscopy (CXRS)/beam emission spectroscopy (BES) system is proposed for C-Mod, in which both measurements are taken from a shared viewing geometry. The supplementary BES system serves to quantify local beam densities and supplants the common calculation of beam attenuation. The new system employs two optical viewing arrays, 20 poloidal and 22 toroidal channels. A dichroic filter splits the light between two spectrometers operating at different wavelengths for impurity ion and beam neutrals emission. In this arrangement, the impurity density is inferred from the electron density, measured BES and CXRS spectral radiances, and atomic emission rates.
为C-Mod提出了一种新型的集成电荷交换复合光谱（CXRS）/束发射光谱（BES）系统，其中两种测量均采用共享的观测几何结构。辅助BES系统用于量化局部束流密度，并取代了束流衰减的常规计算。新系统采用两个光学观测阵列，20个极向通道和22个环向通道。一个二向色滤光片将光在两个工作于不同波长的光谱仪之间分开，用于杂质离子和束流中性粒子发射。在这种配置下，杂质密度由电子密度、测量得到的BES和CXRS光谱辐射亮度以及原子发射率推断得出。
