A new edge tangential multi-energy soft x-ray（ME-SXR） diagnostic with high temporal（≤ 0.1 ms） and spatial（~1 cm） resolution has been developed for a variety of physics topics studies in the EAST tokamak plasma....A new edge tangential multi-energy soft x-ray（ME-SXR） diagnostic with high temporal（≤ 0.1 ms） and spatial（~1 cm） resolution has been developed for a variety of physics topics studies in the EAST tokamak plasma. The fast edge electron temperature profile（approximately from r a~ 0.6 to the scrape-off layer） is investigated using ME-SXR diagnostic system. The data process was performed by the ideal ‘multi-foil＇ technique, with no priori assumptions of plasma profiles. Reconstructed ME-SXR emissivity profiles for a variety of EAST experimental scenarios are presented here for the first time. The applications of the ME-SXR for study of the effects of resonant magnetic perturbation on edge localized modes and the first time neon radiating divertor experiment in EAST are also presented in this work. It has been found that neon impurity can suppress the 2/1 tearing mode and trigger a 3/1 MHD mode.展开更多
柔性多层带材(FMLF)集成技术是近年来提高开关电源功率密度的一种热门解决方案。然而,其寄生电容或电感不仅会造成严重的电磁干扰(EMI),还影响高频滤波特性。首先提出了一种集成一个感性元件和两个容性元件的新型FMLF;接着,利用电磁分...柔性多层带材(FMLF)集成技术是近年来提高开关电源功率密度的一种热门解决方案。然而,其寄生电容或电感不仅会造成严重的电磁干扰(EMI),还影响高频滤波特性。首先提出了一种集成一个感性元件和两个容性元件的新型FMLF;接着,利用电磁分布参数(DEMC)模型分步推理了由绝缘薄膜形成的寄生电容被电介质薄膜吸收的过程;然后,展示了这种新型FMLF的一个实际应用;最后在一台350 W Boost串联谐振变流器实验平台上证明了所提新型FMLF的正确性和实用性。展开更多
基金supported by National Magnetic Confinement Fusion Science Program of China under Contracts Nos.2015GB101000,2013GB106000,and 2013GB107000National Natural Science Foundation of China under Contracts Nos.11575235,11422546 and 11505222Youth Foundation of ASIPP under Grant No.Y45ETY2306
文摘A new edge tangential multi-energy soft x-ray（ME-SXR） diagnostic with high temporal（≤ 0.1 ms） and spatial（~1 cm） resolution has been developed for a variety of physics topics studies in the EAST tokamak plasma. The fast edge electron temperature profile（approximately from r a~ 0.6 to the scrape-off layer） is investigated using ME-SXR diagnostic system. The data process was performed by the ideal ‘multi-foil＇ technique, with no priori assumptions of plasma profiles. Reconstructed ME-SXR emissivity profiles for a variety of EAST experimental scenarios are presented here for the first time. The applications of the ME-SXR for study of the effects of resonant magnetic perturbation on edge localized modes and the first time neon radiating divertor experiment in EAST are also presented in this work. It has been found that neon impurity can suppress the 2/1 tearing mode and trigger a 3/1 MHD mode.
文摘柔性多层带材(FMLF)集成技术是近年来提高开关电源功率密度的一种热门解决方案。然而,其寄生电容或电感不仅会造成严重的电磁干扰(EMI),还影响高频滤波特性。首先提出了一种集成一个感性元件和两个容性元件的新型FMLF;接着,利用电磁分布参数(DEMC)模型分步推理了由绝缘薄膜形成的寄生电容被电介质薄膜吸收的过程;然后,展示了这种新型FMLF的一个实际应用;最后在一台350 W Boost串联谐振变流器实验平台上证明了所提新型FMLF的正确性和实用性。
