Study of high energy ion behavior using multi-channel neutral particle analyzer and advanced pellet injection

飞行时间（TOF）型中性粒子分析仪已开发，校准和测试从1997财政年度的大螺旋装置（LHD）。等离子体在LHD上的实验从1998年年初就开始了。同时安装了分析仪。初步数据来自1998财政年度下半年。常规数据采集可由FYI999完成。利用分析仪的水平扫描可以清楚地了解NBI和ICH高能粒子的行为。高能粒子的谱与模拟结果一致。TOF分析仪的调谐得到了弗拉斯卡蒂人的大力帮助。由于他们有使用分析仪校准的经验，所以就数据分析的问题与他们进行了讨论。先进的多层颗粒注射装置是由日本和俄罗斯科学家在1997 - 1998财年的共同努力下研制成功的。在紧凑螺旋系统（CHS）中进行了颗粒注入实验。通过测量颗粒发射强度的空间分布，可以得到离子输运系数。计算结果与理论结果吻合较好。该装置也已安装在LHD从1999财年。在第三次实验结束时，成功进行了几次颗粒注入，并获得了一些杂质输运的数据。在LHD中，由于数据量的不足，无法对实验结果和理论结果进行充分的比较。我们期待下一次竞选的结果，因为初步审判成功了

The time-of-flight (TOF) type neutral particle analyzer has been developed, calibrated and tested for the Large Helical Device (LHD) from FY1997. The plasma experiments on LHD has aggressively stared from FY1998. The analyzer has been installed at the same time. The preliminary data have been obtained from the latter half of FY1998. The routine data acquiring could be done from FYI999. The behaviors of high energy particles from NBI and ICH could be clear by using horizontal scan of the analyzer. The spectrum of the high energy particles agreed with those from the simulation. The tuning of TOF analyzer has been helped a lot by the Frascati people. Concerning about the analyzing the data has been discussed with them because they have experience of the calibration with the analyzer.The advanced multi-layer pellet injection device has been developed by the corroboration between Japanese and Russian scientists from FY1997 to FY1998. The pellet injection experiments have been performed in the Compact Helical System (CHS). The ion transport - coefficient could be obtained by measuring the spatial distribution of the emission intensity from the pellet. The result was in quite good agreement with the theoretical result. The device has also been installed in LHD from FY1999. At the end of the third experimental campaign, a few pellet injections could be succeeded and some data about the impurity transport could be obtained. In LHD, the sufficient comparison between the experimental and theoretical results could not be performed due to the lack of the data amounts. We expect the result in the next campaign because the preliminary trial was succeeded