TY  - JOUR
AU  - Oelmann, J.
AU  - Wüst, E.
AU  - Sergienko, G.
AU  - Brezinsek, S.
TI  - Double pulse laser-induced breakdown spectroscopy for the analysis of plasma-facing components
JO  - Physica scripta
VL  - 96
IS  - 12
SN  - 0031-8949
CY  - Stockholm
PB  - The Royal Swedish Academy of Sciences
M1  - FZJ-2021-04400
SP  - 124064 -
PY  - 2021
AB  - Laser-induced breakdown spectroscopy is applied successfully for plasma-wall interaction studies in several fusion devices and post-mortem analyses of plasma-facing materials. However, the quantitative as well as qualitative analysis of low hydrogen isotope contents in tungsten plasma-facing components is still challenging. A promising approach to increase the optical signal in laser-induced breakdown spectroscopy is to apply a second laser pulse to the laser-produced plasma. We present two setups for post mortem plasma-facing component analyses using different laser pulse properties and different excitation geometries. The enhancement factors and changes in spectral line shapes for double pulse compared to single pulse laser-induced breakdown spectroscopy are presented.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000720535000001
DO  - DOI:10.1088/1402-4896/ac379c
UR  - https://juser.fz-juelich.de/record/902605
ER  -