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May, 2023, Vol.32 No 3
The figure above illustrates a module of a Free Electron Laser (FEL) with two electron beams. The FEL module consists of an electron emitter (tip), a lens for controlling the electron beam (comprising three electrodes), and a wiggler. The electron beam is emitted from a multi-electron emission tip that simulates Carbon Nano Tube (CNT) paste. It is then divided into two strands of electron beams, which pass near the wiggler. This division is achieved using a limiting aperture (LA) designed to generate optimal FEL radiation.
The figure below provides a magnified view of multiple electron emission tips and the trajectories of the electron beams. As the electron beam passes through the wiggler section, radiation is generated due to periodic changes in trajectory.
Articles
< PreviousApplied Science and Convergence Technology 2023; 32(3): 58~81Next >
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Ultra-Compact Free-Electron Laser Advanced Model for Carbon Nano-Tube Tip
Young Bok Lee
, Seungjoon Ahn , Dae-Wook Kim , Yoon-Ho Song , and Young Chul Kim
aDepartment of Display and Semiconductor Engineering, Sun Moon University, Asan 31460, Republic of Korea
bNano Electron-source Creative Research Center, Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea
cDepartment of Optometry, Eulji University, Seongnam 13135, Republic of Korea ASCT 2023; 32(3): 58-62 Keywords : Free-electron laser, Wiggler, Carbon nano-tube tip, W-tip -
Improving Hybrid Nanocomposite Performances Using Genetic Approach
Omar Alami , Mohammed Belkheir , Mehdi Rouissat , Allel Mokaddem , Bendouma Doumi , and Ahmed Boutaous
aInstitute of Sciences, Nour Bachir University Center of El-Bayadh, El-Bayadh 32000, Algeria
bLaboratory of Instrumentation and Advanced Materials, Nour Bachir University Center of El-Bayadh, El-Bayadh 32000, Algeria
cSTIC Laboratory, University of Tlemcen, Tlemcen 13000, Algeria
dFaculty of Sciences, Department of Physics, University of Saïda, Saïda 20000, Algeria
eDepartment of Materials Technology, Faculty of Physics, University of Science and Technology of Oran Mohamed Boudiaf (USTO-MB), Oran 31000, Algeria ASCT 2023; 32(3): 63-68 Keywords : Carbon fiber, Glass fiber, Epoxy, Carbon nanotube, Shear damage -
Numerical Method for Poisson-Boltzmann Equation Using the Lambert W Function
Nam-Sik Yoon
School of Electrical Engineering, Chungbuk National University, Chungbuk 28644, Republic of Korea
ASCT 2023; 32(3): 69-72
Keywords : Poisson-Boltzmann equation, Plasma, Numerical analysis, Lambert function
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Thickness Dependence of MoO3 Hole Injection Layer on Energy-Level Alignment with NPB Hole Transport Layers in OLEDs
Hyunbok Lee
Department of Physics and Institute of Quantum Convergence Technology, Kangwon National University, Chuncheon 24341, Republic of Korea
ASCT 2023; 32(3): 73-76
Keywords : Photoelectron spectroscopy, Energy-level alignment, MoO3, NPB, Hole injection layer
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Bifunctional Photocatalytic and Magnetic Properties Inducing Effect of Cs Ions on WO3 Structure
Sung Min Heo , Dae Geon Won , Dae Hee Son , Tai Kyung Hwang , and Chang Woo Kim
aDepartment of Smart Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea
bHPO MATERIALS Co., Pukyong National University, Busan 48547, Republic of Korea
cInsolchemtech R&D center, Pukyong National University, Busan 48547, Republic of Korea
dDepartment of Nanotechnology Engineering, Pukyong National University, Busan 48513, Republic of Korea ASCT 2023; 32(3): 77-81 Keywords : WO3, Cesium tungsten oxide, Dopants, Photocatalytic degradation, Magnetic moment
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