用于托卡马克SST-1和Aditya的42GHz 0.5MW ECRH系统

B. Shukla, R. Goswami, R. Babu, J. Patel, P. Chattopadhyay, R. Srinivasan, H. Patel, P. Dhorajia
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引用次数: 3

摘要

42GHz ECRH系统将用于托卡马克SST-1和Aditya上进行预电离和启动实验。该系统将在1.5T环向磁场下可靠地启动SST-1托卡马克。基本o模将从托卡马克的低场侧发射。同样的系统也将在托卡马克Aditya进行0.75T操作的二次谐波ECRH辅助击穿实验。能够提供500千瓦功率的回旋加速器将被安装,这样它将在不拆卸任何组件的情况下向两个托卡马克提供电力。它将通过在传输线中使用两个波导开关来实现。第一个开关将把电力转移到回旋加速器测试的虚拟负载或托卡马克发射电源。第二个开关将提供向托卡马克Aditya或SST1传输电力的选项。大约50米长的传输线将用于从回旋加速器向每个托卡马克传输电力。传输线由配套的光学单元、直流断路、斜向弯管、偏振片、63.5mm ID的圆波纹波导和波纹管组成。线路总传输损耗小于20%,在这种情况下,我们可以发射~ 400kW功率进行可靠的ECRH辅助击穿实验,在基次和次谐波下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
42GHz 0.5MW ECRH system for Tokamaks SST-1 and Aditya
A 42GHz ECRH system would be used to carry out pre-ionization and start-up experiments on Tokamaks SST-1 and Aditya. The system would give reliable start-up in SST-1 Tokamak at 1.5T operating toroidal magnetic field. Fundamental O-mode would be launched from low field side of tokamak. The same system would also be used in Tokamak Aditya to carry out second harmonic ECRH assisted breakdown experiments at 0.75T operation. The Gyrotron capable to deliver 500kW power would be installed such that it will deliver power to both the tokamaks without dismantling any component. It will be achieved by using two waveguide switches in the transmission line. First switch will divert power either to dummy load for Gyrotron testing or to launch power in the tokamaks. The second switch will give the option to transmit power either to tokamak Aditya or SST1. Approximately 50-meter long transmission line will be used to transmit power from Gyrotron to each tokamak. The transmission line consists of a matching optic unit, DC break, mitre-bends, polarizer, 63.5mm ID circular corrugated waveguide and bellows. The total transmission loss in the line is less than 20%, in this case we can launch ∼ 400kW power to carry out reliable ECRH assisted breakdown experiments at fundamental and second harmonic.
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