TY  - JOUR
AU  - Hu, Z.
AU  - Gierse, Niels
AU  - Li, Changjun
AU  - Liu, P.
AU  - Zhao, Dongye
AU  - Sun, L.
AU  - Oelmann, J.
AU  - Nicolai, D.
AU  - Wu, D.
AU  - Wu, J.
AU  - Mao, H.
AU  - Ding, F.
AU  - Brezinsek, S.
AU  - Liang, Yunfeng
AU  - Ding, H.
AU  - Luo, G.
AU  - Linsmeier, C.
TI  - Development of laser-based technology for the routine first wall diagnostic on the tokamak EAST: LIBS and LIAS
JO  - Physica scripta
VL  - T170
SN  - 1402-4896
CY  - Stockholm
PB  - The Royal Swedish Academy of Sciences
M1  - FZJ-2021-01520
SP  - 014046 -
PY  - 2017
AB  - A laser based method combined with spectroscopy, such as laser-induced breakdown spectroscopy (LIBS) and laser-induced ablation spectroscopy (LIAS), is a promising technology for plasma-wall interaction studies. In this work, we report the development of in situ laser-based diagnostics (LIBS and LIAS) for the assessment of static and dynamic fuel retention on the first wall without removing the tiles between and during plasma discharges in the Experimental Advanced Superconducting Tokamak (EAST). The fuel retention on the first wall was measured after different wall conditioning methods and daily plasma discharges by in situ LIBS. The result indicates that the LIBS can be a useful tool to predict the wall condition in EAST. With the successful commissioning of a refined timing system for LIAS, an in situ approach to investigate fuel retention is proposed.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000414120500046
DO  - DOI:10.1088/1402-4896/aa8650
UR  - https://juser.fz-juelich.de/record/891435
ER  -