scholarly journals Comparative numerical study of efficiency of energy deposition in femtosecond microfabrication with fundamental and second harmonics of Yb-doped fiber laser

2011 ◽  
Author(s):  
Alexandr Dostovalov ◽  
Sergey Babin ◽  
Mandana Baregheh ◽  
Mykhaylo Dubov ◽  
Vladimir Mezentsev
Keyword(s):  
Fiber Laser ◽  
Energy Deposition ◽  
Numerical Study

Numerical study on increasing mass flow ratio by energy deposition of high frequency pulsed laser

2013 ◽  
Vol 25 (7) ◽  
pp. 1715-1718 ◽  
Author(s):  
王殿恺 Wang Diankai ◽  
洪延姬 Hong Yanji ◽  
李倩 Li Qian
Keyword(s):  
Mass Flow ◽  
High Frequency ◽  
Energy Deposition ◽  
Numerical Study ◽  
Pulsed Laser ◽  
Flow Ratio ◽  
Mass Flow Ratio

scholarly journals Directed Energy Deposition of PA12 carbon nanotube composite powder using a fiber laser

Procedia CIRP ◽  
2020 ◽  
Vol 94 ◽  
pp. 128-133
Author(s):  
Yunus Kutlu ◽  
Yannick L. Wencke ◽  
Gerrit A. Luinstra ◽  
Cemal Esen ◽  
Andreas Ostendorf
Keyword(s):  
Carbon Nanotube ◽  
Fiber Laser ◽  
Composite Powder ◽  
Energy Deposition ◽  
Directed Energy Deposition ◽  
Carbon Nanotube Composite ◽  
Directed Energy

Numerical study of spatter formation during fiber laser welding of aluminum alloy

2018 ◽  
Vol 31 ◽  
pp. 72-79 ◽  
Author(s):  
Dabin Zhang ◽  
Canli Li ◽  
Xixia Liu ◽  
Yang Cao ◽  
Dongsheng Wu
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
Numerical Study ◽  
Fiber Laser Welding

scholarly journals Calorimetric Non-Destructive Assay of Large Volume and Heterogeneous Radioactive Waste Drums

2020 ◽  
Vol 225 ◽  
pp. 06003
Author(s):  
W. R. Kubinski ◽  
C. Carasco ◽  
D. Kikola ◽  
C. Mathonat ◽  
D. Ricard ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
Large Volume ◽  
Energy Deposition ◽  
Particle Flux ◽  
Background Radiation ◽  
Numerical Study ◽  
High Energy ◽  
Beta Emitters ◽  
Non Destructive ◽  
Waste Drums

The EU-CHANCE project aims at the issue of the characterization of conditioned radioactive waste (CRW) and one objective of CHANCE is to focus on: Calorimetry as a comprising non-destructive technique to reduce uncertainties on the inventory of radwaste containing shielded and hidden material difficult to be measured by other means. A MCNP6-based numerical study comprising the particle flux out of a 200L mock-up drum in a Large Volume Calorimeter (LVC) currently manufactured by KEP Nuclear (France) will be presented and discussed. For the analyses, the particle flux and energy deposition in each layer of the calorimeter were determined. The results yield that a significant fraction of the radiation would leave the system and not contribute to the measurable heat deposition. The expected energy deposition is obtained and cumulated for each layer over the whole energy range revealing the fraction of particles actually escaping the LVC calorimeter. While this escape fraction needs and can be determined, the LVC is a very suitable apparatus for the anticipated experiments on large and heterogeneous waste drums that possibly contain deeply buried beta-emitters (e.g. Sr/Y-90) or shielded alpha-sources hidden inside the drum with a significant level of gamma and neutron radiation background radiation. The high-energy part of this gamma and neutron flux may even reach the reference chamber of the calorimeter and deposit some energy there, compromising the calibration and may cause a double-bias.

Experimental and numerical study of spatter formation and composition change in fiber laser welding of aluminum alloy

2018 ◽  
Vol 51 (18) ◽  
pp. 185604 ◽  
Author(s):  
Dongsheng Wu ◽  
Xueming Hua ◽  
Youxiong Ye ◽  
Lijin Huang ◽  
Fang Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
Numerical Study ◽  
Composition Change ◽  
Fiber Laser Welding
Sign in / Sign up

Export Citation Format

Share Document