Design and Test of Wendelstein 7-X Water-Cooled Divertor Scraper

被引：1
作者：
Boscary, J. [1 ]
Greuner, H. [1 ]
Ehrke, G. [2 ]
Boeswirth, B. [1 ]
Wang, Z. [1 ]
Clark, E. [3 ]
Lumsdaine, A. [4 ]
Tretter, J. [1 ]
Junghanns, P. [1 ]
Stadler, R. [1 ]
McGinnis, D. [4 ]
Lore, J. [4 ]
机构：
[1] Max Planck Inst Plasma Phys, D-85748 Garching, Germany
[2] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany
[3] Univ Tennessee, Bredesen Ctr Interdisciplinary Res, Knoxville, TN 37831 USA
[4] Oak Ridge Natl Lab, Fus & Mat Nucl Syst Div, Oak Ridge, TN USA
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 2018年 / 46卷 / 05期
关键词：
Divertor; plasma facing component (PFC); scraper; stellarator; Wendelstein; 7-X; TARGET ELEMENTS;
D O I：
10.1109/TPS.2018.2804660
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Heat load calculations have indicated the possible overloading of the ends of the water-cooled divertor facing the pumping gap beyond their technological limit. The intention of the scraper is the interception of some of the plasma fluxes both upstream and downstream before they reach the divertor surface. The scraper is divided into six modules of four plasma facing components (PFCs); each module has four PFCs hydraulically connected in series by two water boxes (inlet and outlet). A full-scale prototype of one module has been manufactured. Development activities have been carried out to connect the water boxes to the cooling pipes of the PFCs by tungsten inert gas internal orbital welding. This prototype was successfully tested in the GLADIS facility with 17 MW/m(2) for 500 cycles. The results of these activities have confirmed the possible technological basis for a fabrication of the water-cooled scraper.
引用
收藏
页码：1398 / 1401
页数：4
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