Ablation product radiation from cones

1964 ◽  
Author(s):  
G. CHAPMAN ◽  
D. COMPTON
Keyword(s):  
Ablation Product

scholarly journals Characterization of a radiometer window for Mars aftbody heating including ablation product deposition using a miniature arc jet

2018 ◽  
Author(s):  
Ruth A. Miller ◽  
Chun Y. Tang ◽  
Mark S. McGlaughlin ◽  
Todd R. White ◽  
Thanh S. Ho ◽  
...  
Keyword(s):  
Ablation Product

scholarly journals Krypton Gas for High Quality Single Wall Carbon Nanotubes Synthesis by KrF Excimer Laser Ablation

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jasim Al-Zanganawee ◽  
Adrian Katona ◽  
Calin Moise ◽  
Dionezie Bojin ◽  
Marius Enachescu
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Laser Ablation ◽  
Excimer Laser ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Excimer Laser Ablation ◽  
Laser Ablation Method ◽  
Ablation Product ◽  
Krf Excimer Laser

We report for the first time the production of single wall carbon nanotubes (SWCNTs) by KrF excimer laser ablation method under the krypton gas atmosphere. For the ablation experiment 450 mJ energy and 30 Hz repetition rate KrF excimer laser was used, and the target was prepared with the following composition: 0.6% Ni, 0.6% Co, and 98.8% C (atomic percentage). The ablation product was characterized by confocal Raman microspectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The SWCNTs obtained are a mixture of semiconducting and metallic types with narrow diameters distribution of 1.26 to 1.49 nm, are micrometers long, and contain low amount of graphite and amorphous carbon.

scholarly journals Characteristics of metal ablation product by intense pulsed ion beam irradiation

2017 ◽  
Vol 66 (5) ◽  
pp. 055202
Author(s):  
Zhang Jie ◽  
Zhong Hao-Wen ◽  
Shen Jie ◽  
Liang Guo-Ying ◽  
Cui Xiao-Jun ◽  
...  
Keyword(s):  
Ion Beam ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Ablation Product

scholarly journals Characterization of Ablation Product Radiation Signatures of PICA and FiberForm

2016 ◽  
Author(s):  
Michael Winter ◽  
Bradley Butler ◽  
Paul M. Danehy ◽  
Scott Splinter ◽  
Zhaojin Diao ◽  
...  
Keyword(s):  
Ablation Product

Extraction of seasonal surface ablation zone in DALK glacier based on Landsat-8

2020 ◽  
Author(s):  
Yutong Qu ◽  
Yan Liu
Keyword(s):  
Temporal Variation ◽  
Mean Value ◽  
Radiation Budget ◽  
Landsat 8 ◽  
Mechanism Analysis ◽  
Ablation Zone ◽  
Water Index ◽  
Ablation Area ◽  
Ablation Product ◽  
Spatio Temporal

<p>Spatio-temporal variation of snowmelt affects the Earth’s radiation budget hence serves as a proxy of climate change and global warming. Ablation zone including blue ice and wetsnow has a low surface albedo and melt water ponding ice shelf surface during summer that enhances crevasse propagation then poses a threat the stability of ice shelves. The lack of high spatial and temporal ablation product limits the in-depth exploration of the mechanism and spatio-temporal characteristics of ablation in Antarctica. Here an ablation area detection method based on the modified normalized difference water index adapted for ice (MNDWI<sub>ice</sub> ) is developed to determine and characterize ablation variationsbased on Landsat-8 images of the Dalk glacier, East Antarctica, between September 2016 and March 2017.. The results showed that the Landsat-8 reflectance data can be used to extract seasonal ablation using a uniform MNDWI<sub>ice</sub> threshold (0.136), and the average extraction accuracy is 81.5%, and varies between 67.7% and 94.2% in case of the thin cloud and fractional topographic shadow.The ablation area and the mean value of MNDWI<sub>ice</sub> in the ablation zone show obvious seasonal spatio-temporal variation characteristics. The ablation area in the Dalk glacier appears no later than the earliest time (early September) of the observation. The earliest appearance of ablation is mainly distributed at the eastern grounding line where the terrain changes drastically. Brightness temperature and air temperature of Zhongshan Station show a strong correlation, which can be used as a mechanism analysis of the ablation zone distribution.</p><p><strong>Key words </strong>Antarctica, Dalk glacier, ablation, MNDWI<sub>ice</sub></p>

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