X-ray crystal spectrometer upgrade for ITER-like wall experiments at JET

Autor: Adrian Byszuk, Leslaw Karpinski, N. J. Conway, Katarzyna Jakubowska, Wojciech M. Zabołotny, Marek Scholz, T. Nakano, Jacek Rzadkiewicz, A.E. Shumack, K.-D. Zastrow, W. Dominik, S. G. J. Tyrrell, Jet-Efda Contributors, Radosław Cieszewski, Krzysztof T. Pozniak, Tomasz Czarski, Vasile Zoita, Grzegorz Kasprowicz, Andrzej Wojeński, Maryna Chernyshova, S. Dalley, João Figueiredo
Rok vydání: 2014
Předmět:
Zdroj: Review of Scientific Instruments, 85, 11E425
Review of Scientific Instruments
ISSN: 1089-7623
0034-6748
DOI: 10.1063/1.4891182
Popis: The high resolution X-Ray crystal spectrometer at the JET tokamak has been upgraded with the main goal of measuring the tungsten impurity concentration. This is important for understanding impurity accumulation in the plasma after installation of the JET ITER-like wall (main chamber: Be, divertor: W). This contribution provides details of the upgraded spectrometer with a focus on the aspects important for spectral analysis and plasma parameter calculation. In particular, we describe the determination of the spectrometer sensitivity: important for impurity concentration determination.
Databáze: OpenAIRE