Time resolved absolute extreme ultraviolet radiation measurement on the ENN XuanLong-50 spherical tokamak.
Rev Sci Instrum
; 92(8): 083507, 2021 Aug 01.
Article
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| MEDLINE
| ID: mdl-34470401
ABSTRACT
A plasma radiation measurement system for a wide spectral range, based on compact Absolute eXtreme UltraViolet (AXUV) silicon photodiodes, has been implemented on the newly constructed ENN XuanLong-50 (EXL-50) spherical tokamak. The system consists of two 16-channel AXUV16ELG arrays and one AXUV63HS1 single-cell detector mounted on ceramic sockets. The two arrays, facing toward the EXL-50 slim central post from two locations inside a top and a side ConFlat 400 port, have 32 view chords covering the interested plasma region in a poloidal cross section at toroidal 330°. The single-cell detector, seated on a retractable feedthrough, could be arranged flexibly with the help of an ultra-high vacuum compatible gate valve. The design details together with considerations on the EXL-50 specific engineering realities and physics requirements are described. Preliminary results from the EXL-50 2020 experimental campaign are presented.
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MEDLINE
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En
Revista:
Rev Sci Instrum
Año:
2021
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Article
País de afiliación:
China