TY - GEN
T1 - Spectroscopic study of hydrogen particle behaviour in island divertor of W7-X
AU - W7-X Team
AU - Wang, E.
AU - Brezinsek, S.
AU - Sereda, S.
AU - Krychowiak, M.
AU - König, R.
AU - Kremeyer, T.
AU - Jakubowski, M.
AU - Janjua, R.
AU - Liang, Y.
AU - Neubauer, O.
AU - Rudischhauser, L.
AU - Wauters, T.
N1 - Publisher Copyright:
© 2021 47th EPS Conference on Plasma Physics, EPS 2021. All right reserved.
PY - 2021
Y1 - 2021
N2 - Hydrogen recycling plays a key role in the steady-state operation on W7-X. In OP1.2, the H2gas injection through He-beam nozzles installed on divertor plates has been applied to calibrate the recycling flux measured by the divertor spectrometers. The results show that the nozzle position close to the O-point of the island has better fuelling efficiency. And at higher heating power, the fuelling efficiency is also better. The recycled H2molecules influx from divertor plate is estimated in W7-X in front of the graphite target plate. Meanwhile, in the Hγintensity, there are about 30% contributed from hydrogen atoms dissociated from H2molecules.
AB - Hydrogen recycling plays a key role in the steady-state operation on W7-X. In OP1.2, the H2gas injection through He-beam nozzles installed on divertor plates has been applied to calibrate the recycling flux measured by the divertor spectrometers. The results show that the nozzle position close to the O-point of the island has better fuelling efficiency. And at higher heating power, the fuelling efficiency is also better. The recycled H2molecules influx from divertor plate is estimated in W7-X in front of the graphite target plate. Meanwhile, in the Hγintensity, there are about 30% contributed from hydrogen atoms dissociated from H2molecules.
UR - http://www.scopus.com/inward/record.url?scp=85119528706&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85119528706
T3 - 47th EPS Conference on Plasma Physics, EPS 2021
SP - 409
EP - 412
BT - 47th EPS Conference on Plasma Physics, EPS 2021
PB - European Physical Society (EPS)
T2 - 47th EPS Conference on Plasma Physics, EPS 2021
Y2 - 21 June 2021 through 25 June 2021
ER -