Estimation of 2D distributions of electron density and temperature in the JET divertor from tomographic reconstructions of deuterium Balmer line emission

J. Karhunen,B. Lomanowski,V. Solokha,S. Aleiferis,P. Carvalho,M. Groth, H. Kumpulainen,K.D. Lawson,A.G. Meigs,A. Shaw,Jet Contributors

Nuclear Materials and Energy（2020）

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摘要

•2D ne and Te estimates obtained from deuterium Balmer line ratios in JET divertor.•High ne observed to shift from strike point to above X-point in L-mode detachment.•Divertor Te observed to fall from 3—4 eV to 0.5—1.0 eV in L-mode detachment.•2D estimates within 25% agreement with other spectroscopic ne and Te measurements.

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关键词

Fusion,Detachment,Divertor physics,Divertor spectroscopy,Camera tomography

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