For understanding the physics of energetic particles, the deuterium experimental campaigns started in Large Helical Device (LHD) from March 2017. To investigate the behavior of energetic particles, a Fast-ion D Alpha (FIDA) diagnostic was installed on the LHD. In the FIDA diagnostic, the Doppler-shifted D alpha light from fast-neutrals are utilized as signals of energetic particles, where these fast-neutrals are produced by the charge exchange process between fast-ions in the plasma and actively injected neutrals by neutral beam (NB). The advantages of the FIDA diagnostic are the velocity and the spatially resolved measurement of fast-ions at the crossing point between its line of sight (LOS) and the incident line of NB. The most recent FIDASIM is enhanced to simulate signals produced in three-dimensional magnetic configurations. The new version of FIDASIM uses the fast-ion distribution function produced by GNET as input to simulate FIDA signals at LHD. In order to validate the ...

中文翻译：

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大型螺旋设备中具有支持3D的FIDASIM的Fast-ion D alpha诊断

为了了解高能粒子的物理性质，从2017年3月开始在大型螺旋装置（LHD）中进行氘的实验活动。为了研究高能粒子的行为，LHD上安装了Fast-ion D Alpha（FIDA）诊断程序。在FIDA诊断中，快中性产生的多普勒频移Dα光被用作高能粒子的信号，这些快中性是通过等离子体中快离子与中性束主动注入的中性之间的电荷交换过程产生的（NB）。FIDA诊断程序的优点是在其视线（LOS）与NB入射线之间的交点处快速离子的速度和空间分辨测量。最新的FIDASIM已得到增强，可以模拟在三维磁性配置中产生的信号。新版本的FIDASIM使用GNET产生的快速离子分配功能作为输入，以LHD模拟FIDA信号。为了验证...