scholarly journals Method to eliminate the impact of magnetic fields on the position of the electron beam during EBW

2016 ◽  
Vol 122 ◽  
pp. 012021 ◽  
Author(s):  
V D Laptenok ◽  
A A Druzhinina ◽  
A V Murygin ◽  
Yu N Seregin
Keyword(s):  
Electron Beam ◽  
Magnetic Fields ◽  
The Impact

scholarly journals The impact of magnetic fields on momentum transport and saturation of shear-flow instability by stable modes

2021 ◽  
Vol 28 (2) ◽  
pp. 022309
Author(s):  
A. E. Fraser ◽  
P. W. Terry ◽  
E. G. Zweibel ◽  
M. J. Pueschel ◽  
J. M. Schroeder
Keyword(s):  
Magnetic Fields ◽  
Shear Flow ◽  
Flow Instability ◽  
Momentum Transport ◽  
Shear Flow Instability ◽  
The Impact

Effect of powder oxidation on the impact toughness of electron beam melting Ti-6Al-4V

2017 ◽  
Vol 17 ◽  
pp. 123-134 ◽  
Author(s):  
W.A. Grell ◽  
E. Solis-Ramos ◽  
E. Clark ◽  
E. Lucon ◽  
E.J. Garboczi ◽  
...  
Keyword(s):  
Electron Beam ◽  
Impact Toughness ◽  
Electron Beam Melting ◽  
The Impact

scholarly journals The impact of transformation plasticity on the electron beam welding of thick-section ferritic steel components

2017 ◽  
Vol 323 ◽  
pp. 309-316 ◽  
Author(s):  
Anastasia N. Vasileiou ◽  
Michael C. Smith ◽  
Jeyaganesh Balakrishnan ◽  
John A. Francis ◽  
Cory J. Hamelin
Keyword(s):  
Electron Beam ◽  
Ferritic Steel ◽  
Electron Beam Welding ◽  
Thick Section ◽  
Transformation Plasticity ◽  
The Impact

scholarly journals Control of the Longitudinal Compression and Transverse Focus of Ultrafast Electron Beam for Detecting the Transient Evolution of Materials

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 571
Author(s):  
Xintian Cai ◽  
Zhen Wang ◽  
Chaoyue Ji ◽  
Xuan Wang ◽  
Zhiyin Gan ◽  
...  
Keyword(s):  
Electron Beam ◽  
Temporal Resolution ◽  
Fast Electron ◽  
Single Pulse ◽  
Coulomb Force ◽  
Single Shot ◽  
Longitudinal Compression ◽  
Rf Cavity ◽  
Tracking Model ◽  
The Impact

Ultrafast detection is an effective method to reveal the transient evolution mechanism of materials. Compared with ultra-fast X-ray diffraction (XRD), the ultra-fast electron beam is increasingly adopted because the larger scattering cross-section is less harmful to the sample. The keV single-shot ultra-fast electron imaging system has been widely used with its compact structure and easy integration. To achieve both the single pulse imaging and the ultra-high temporal resolution, magnetic lenses are typically used for transverse focus to increase signal strength, while radio frequency (RF) cavities are generally utilized for longitudinal compression to improve temporal resolution. However, the detection signal is relatively weak due to the Coulomb force between electrons. Moreover, the effect of RF compression on the transverse focus is usually ignored. We established a particle tracking model to simulate the electron pulse propagation based on the 1-D fluid equation and the 2-D mean-field equation. Under considering the relativity effect and Coulomb force, the impact of RF compression on the transverse focus was studied by solving the fifth-order Rung–Kutta equation. The results show that the RF cavity is not only a key component of longitudinal compression but also affects the transverse focusing. While the effect of transverse focus on longitudinal duration is negligible. By adjusting the position and compression strength of the RF cavity, the beam spot radius can be reduced from 100 μm to 30 μm under the simulation conditions in this paper. When the number of single pulse electrons remains constant, the electrons density incident on the sample could be increased from 3.18×1012 m−2 to 3.54×1013 m−2, which is 11 times the original. The larger the electron density incident on the sample, the greater the signal intensity, which is more conducive to detecting the transient evolution of the material.

scholarly journals ANALISIS HUBUNGAN SALURAN TEGANGAN TINGGI LISTRIK TERHADAP JARINGAN SELULAR DI DAERAH GRAHA INDAH TAMBAKBOYO LAMONGAN

JOUTICA ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 255
Author(s):  
Kemal Farouq Mauladi ◽  
Nurul Fuad
Keyword(s):  
Public Health ◽  
Magnetic Fields ◽  
Electric Field ◽  
Cellular Networks ◽  
Electromagnetic Fields ◽  
Electricity Generation ◽  
Negative Impact ◽  
Electrical Energy ◽  
Electric And Magnetic Fields ◽  
The Impact

Telecommunications technology is developing very rapidly, ranging from users or engineers. The development of smartphone smartphones is also increasingly in demand, so that the use of electricity needs is also increasing. The need for electricity usage has resulted in more standing voltage in some settlements. The establishment of sutet will have a negative impact on public health. In addition, the influence of electrical energy on humans occurs because the electrical energy generated by electricity generation or electricity that is channeled gives rise to electromagnetic fields. The higher the voltage required by an equipment, the greater the electric field that is distributed. Besides that, it can also find ways to reduce the negative impact of the electric and magnetic fields produced by SUTET which impacts the process of the occurrence of electric and magnetic fields on SUTET. From the problems above, the author intends to determine the effect or correlation between the impact of SUTET on cellphone network transmissions or channels. This research can later determine the negative impact caused by SUTET for the surrounding community, and the impact of SUTET radiation on cellular networks.

scholarly journals Effect of self-generated magnetic fields on fast-electron beam divergence in solid targets

2010 ◽  
Vol 12 (6) ◽  
pp. 063018 ◽  
Author(s):  
X H Yuan ◽  
A P L Robinson ◽  
M N Quinn ◽  
D C Carroll ◽  
M Borghesi ◽  
...  
Keyword(s):  
Electron Beam ◽  
Magnetic Fields ◽  
Fast Electron ◽  
Beam Divergence ◽  
Fast Electron Beam

The Impact of Rotation Velocity on Measuring Magnetic Fields of K and M Stars

2020 ◽  
Vol 4 (12) ◽  
pp. 241
Author(s):  
Maryam Hussaini ◽  
Gregory N. Mace ◽  
Ricardo López-Valdivia ◽  
Easton J. Honaker ◽  
Eunkyu Han
Keyword(s):  
Magnetic Fields ◽  
Rotation Velocity ◽  
M Stars ◽  
The Impact

scholarly journals Dipolar stability in spherical simulations: The impact of an inner stable zone

2019 ◽  
Vol 15 (S354) ◽  
pp. 185-188
Author(s):  
Bonnie Zaire ◽  
Laurène Jouve
Keyword(s):  
Magnetic Fields ◽  
Rossby Number ◽  
Constant Ratio ◽  
Stellar Rotation ◽  
Convective Motions ◽  
The Stability ◽  
The One ◽  
The Impact ◽  
The Magnetic Field ◽  
Stable Zone

AbstractMagnetic fields vary in complexity for different stars. The stability of dipolar magnetic fields is known to depend on different quantities, e.g., the stellar rotation, the stratification, and the intensity of convective motions. Here, we study the dipolar stability in a system with an inner stable zone. We present preliminary results of dynamo simulations using the Rayleigh number as a control parameter. The stiffness of the stable zone is accordingly varied to keep a constant ratio of the Brunt-Väisälä frequency to the angular velocity. Similarly to the completely convective spherical shell, we find that a transition exists between a regime where the magnetic field is dipolar to a multipolar regime when the Rossby number is increased. The value of the Rossby number at the transition is very close to the one of the fully convective case.

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