Experimental investigation of L- and H-mode detachment via the divertor Thomson scattering at ASDEX Upgrade
نویسندگان
چکیده
Abstract The capabilities of the newly installed divertor Thomson Scattering (DTS) diagnostic (Kurzan et al 2021 J. Inst. 16 C09012) at ASDEX Upgrade (AUG) have been demonstrated by measuring 2D electron densities n e and temperatures T from attached to fully detached conditions in L- H-mode. collected dataset is a breakthrough for studies AUG which such measurements so far missing. Besides highlighting strengths limits DTS system, this work provides confirmations new insights into detachment physics. transition between partial pronounced correlates with redistribution density inner outer both In detachment, strong parallel pressure gradient could be confirmed throughout complete SOL. Finally, stable X-point radiator revealed local as low 1 eV within confined plasma, whereas shown constant on closed field lines.
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ژورنال
عنوان ژورنال: Nuclear Fusion
سال: 2022
ISSN: ['0029-5515', '1741-4326']
DOI: https://doi.org/10.1088/1741-4326/ac6071