Characterization of dusts and impurities from the interaction between the first wall materials and energetic laser beams

Xiao, Qingbo; Liu, Jiahong; Liu, Yang; Wang, Dezhen; Ding, Hongbin

doi:10.1016/j.fusengdes.2010.08.023

Cited by 2 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These factors inherently limit both the lifetime of the PFCs and the performance of the devices in which they are applied [1] . The investigation of cluster upon vaporization of graphite is important for studying and controlling the formation of dusts and impurities from the interaction between edge plasma and first wall materials [2] . High-power nanosecond lasers can be used for laboratory simulation of PFC material degradation by high power heat flux [3] .…”

Section: Introductionmentioning

confidence: 99%

Characterization of Carbon Plasma Evolution Using Laser Ablation TOF Mass Spectrometry

Zhang

Feng

Xiao

et al. 2015

Plasma Sci. Technol.

Self Cite

View full text Add to dashboard Cite

In this work, a time-of-flight (TOF) mass spectrometer has been used to investigate the distribution of intermediate species and formation process of carbon clusters. The graphite sample was ablated by Nd:YAG laser (532 nm and 1064 nm). The results indicate that the maximum size distribution shifted towards small cluster ions as the laser fluence increased, which happened because of the fragmentation of larger clusters in the hot plume. The temporal evolution of ions was measured by varying the delay time of the ion extraction pulse with respect to the laser irradiation, which was used to provide distribution information of the species in the ablated plasma plume. When the laser fluence decreased, the yield of all of the clusters obviously dropped.

show abstract

Section: Introductionmentioning

confidence: 99%