Characterization of Beam Quality by the “Power-in-the-Bucket”

2011 ◽  
Author(s):  
Sergiy Kaim ◽  
Sergiy Mokhov ◽  
Derrek Drachenberg ◽  
Leonid Glebov ◽  
Boris Zeldovich
Keyword(s):  
Beam Quality

Characterization of beam quality of 10-kW class laser

2019 ◽  
Author(s):  
Przemyslaw Gontar ◽  
Lukasz Gorajek ◽  
Krzysztof Kopczynski ◽  
Jan K. Jabczynski
Keyword(s):  
Beam Quality

Characterization of beam quality of high-energy laser

2003 ◽  
Author(s):  
Wei Gao ◽  
Huiming Huang
Keyword(s):  
Beam Quality ◽  
High Energy ◽  
Energy Laser ◽  
High Energy Laser

scholarly journals Monte Carlo characterization of the gold nanoparticles dose enhancement and estimation of the physical interactions weight in dose enhancement mechanism

2020 ◽  
Vol 26 (4) ◽  
pp. 217-223
Author(s):  
Mohammad Mohammadzadeh ◽  
Hosein Ghiasi
Keyword(s):  
Gold Nanoparticles ◽  
Monte Carlo ◽  
Beam Quality ◽  
Simulation Method ◽  
Photoelectric Effect ◽  
Dose Enhancement ◽  
Heavy Atoms ◽  
Physical Interactions ◽  
The Subject

AbstractRadiosensitization of the cancer cells by the heavy atoms of nanoparticles was the subject of some studies. But, the physical characterization to determine the weight of all interactions hasn’t been made numerically. The aim of this study was to calculate and compare the dose enhancement (DE) for different energies. The Monte Carlo simulation method was used in the current study. The influence of gold nanoparticles (GNP) size, beam quality, the GNP concentration, and dose inhomogeneity on the radiosensitization by DE was studied. A 35% increase in the photoelectric effect was observed while energy decreased from 18 MV to 300 kV. In the microscopic study which DE calculated in 30 µm from a single GNP, a 79% decreasing in DE within the first 1µm was seen and it declined to 2% in 30 µm from the GNP center. The effect was observed at small distances only. Our study revealed that the dose inhomogeneity around a nanoparticle is the main and very strong effect of DE on a macroscopic scale. In the location which 35% DE occurs most malignant cells survival will be effectively reduced. Our research indicates the need for further research.

Beam quality characterization of nanosecond optical parametric oscillators

1998 ◽  
Author(s):  
S.C. Lyons ◽  
G.-L. Oppo ◽  
W.J. Firth ◽  
J.R.M. Barr ◽  
C. Cois
Keyword(s):  
Beam Quality ◽  
Optical Parametric Oscillators ◽  
Parametric Oscillators ◽  
Optical Parametric

Beam quality characterization of 10-kW CW fiber laser effector

2019 ◽  
Author(s):  
Przemyslaw Gontar ◽  
Lukasz Gorajek ◽  
Jan K. Jabczynski ◽  
Krzysztof Kopczynski
Keyword(s):  
Fiber Laser ◽  
Beam Quality

scholarly journals Characterization of beam quality of unstable laser beams with the multiple hyperbolas method

2019 ◽  
Vol 12 ◽  
pp. 38-45 ◽  
Author(s):  
Lingqiang Meng ◽  
Qingqing Kong ◽  
Kunhao Ji ◽  
Zhigang Han ◽  
Hua Shen ◽  
...  
Keyword(s):  
Beam Quality ◽  
Laser Beams
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