Upgrade of absolute extreme ultraviolet diagnostic on J-TEXT

descriptionPublicationkeyboard_double_arrow_right Article 07 Aug 2014 English Publisher:AIP PublishingJournal:Review of Scientific Instruments, volume 85 (issn: 0034-6748, eissn: 1089-7623,

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Authors: X L, Zhang; Z F, Cheng; S Y, Hou; G, Zhuang; J, Luo;

doi: 10.1063/1.4891159

pmid: 25430327

Upgrade of absolute extreme ultraviolet diagnostic on J-TEXT

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Abstract

The absolute extreme ultraviolet (AXUV) diagnostic system is used for radiation observation on J-TEXT tokamak [J. Zhang, G. Zhuang, Z. J. Wang, Y. H. Ding, X. Q. Zhang, and Y. J. Tang, Rev. Sci. Instrum. 81, 073509 (2010)]. The upgrade of the AXUV system is aimed to improve the spatial resolution and provide a three-dimensional image on J-TEXT. The new system consists of 12 AXUV arrays (4 AXUV16ELG arrays, 8 AXUV20ELG arrays). The spatial resolution in the cross-section is 21 mm for the AXUV16ELG arrays and 17 mm for the AXUV20ELG arrays. The pre-amplifier is also upgraded for a higher signal to noise ratio. By upgrading the AXUV imaging system, a more accurate observation on the radiation information is obtained.

Related Organizations

Huazhong University of Science and Technology
China (People's Republic of)
State Key Laboratory of Advanced Electromagnetic Engineering and Technology
China (People's Republic of)

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