EAST上软X射线能谱诊断系统的研制  被引量:1

Development of the soft X-ray energy spectrum diagnostic system on EAST

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作  者:张继宗[1,2] 潘国强[1] 胡立群[2] 王相綦[1] 林士耀[2] 徐立清[2] 

机构地区:[1]中国科学技术大学国家同步辐射实验室,合肥230029 [2]中国科学院等离子体物理研究所,合肥230031

出  处:《核技术》2014年第7期37-42,共6页Nuclear Techniques

基  金:国家自然科学基金项目(No.11305207;No.11175208;No.11261140328);国家磁约束核聚变能研究专项(No.2011GB101004)资助

摘  要:采用多元硅漂移探测器(Silicon Drift Detector,SDD)阵列和快速处理电子学系统在EAST托卡马克上构建了一套性能优异的软X射线能谱诊断系统,用于测量等离子体内在软X射线能段(1-30 keV)的辐射能谱。本系统观测范围覆盖了EAST等离子体的下半空间,可在EAST上各种放电条件下获得电子温度分布。本系统具有较高的能量分辨率,可用于监测等离子体内的中高Z杂质。系统安装在EAST上并投入使用,验证了系统的可靠性和有效性并取得良好的实验结果。Background: Electron temperature is one of most important parameters in the controlled magnetic confinement fusion experiments. Purpose: We attempt to develop a set of soft X-ray energy spectrum diagnostic system for measuring the plasma soft X-ray (1-30 keV) spectra on Experimental Advanced Superconducting Tokamak (EAST). Methods: The diagnostic system is based on a 10-element Silicon Drift Detector (SDD) array and fast electronics, and basically views lower half-space of the plasma. Results: The diagnostic system can measure electron temperature under various plasma configuration conditions and the electron temperature obtained from the system is consistent with electron circle emission (ECE) and X-ray crystal spectrometer (XCS) diagnostic systems. And the system can monitor the middle and high Z impurities in the plasma as the good energy resolution of the system. Conclusion: The diagnostic system had been installed on EAST and verified its reliability and effectiveness and gained the good experimental results.

关 键 词:关键词东方超环(Experimental Advanced SUPERCONDUCTING TOKAMAK EAST) 软X射线能谱 硅漂移探测器(Silicon DRIFT Detector SDD) 电子温度 

分 类 号:TL65[核科学技术—核技术及应用]

 

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