High current pulsed electron beam

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August undefined, 2024

WebSuch beam current features pose new and additional challenges both for beam monitoring system (inside the linac) ... Durán MT, Desorgher L, et al. Dosimetric and preparation procedures for irradiating biological models with pulsed electron beam at ultra-high dose-rate. Radiother Oncol. (2024) 139:34–9. doi: 10.1016/j.radonc.2024.05.004. Web15 de nov. de 2024 · Recently, high-current pulsed electron beam (HCPEB) irradiation has been proposed as an innovative non-equilibrium surface modification technology, …

Numerical simulation of the thermal-mechanical process of high …

Web15 de set. de 2009 · @misc{etde_21485935, title = {Irradiation effect of high current pulsed electron beam on surface structure and mechanical properties of NiCoCrAlY} author = {Zhong, Wang, Xianxiu, Mei, Cunxia, Wang, Wenfei, Sun, Shengzhi, Hao, Ying, Qin, Chuang, Dong, and Hongchen, Wu} abstractNote = {DZ4 substrates were coated … Web20 de mai. de 1993 · A novel concept for a high-current-density micro-pulse electron gun has been studied. The concept employs the resonant amplification of an electron current by secondary electron emission in an RF cavity. We have studied this "multipacting" process in detail, including space charge, and have found the parameters necessary to … in cite reference

大连理工大学主页平台管理系统 John Wu--Aimin Wu ...

WebMicrostructures of CuCr25 and CuCr50 alloys treated by high current pulsed electron beam (HCPEB) were investigated in this work. The microstructure and solidification behavior of the Cr-rich phases were characterized by scanning electron microscopy (SEM). Results show that a remelting layer of 3~5 μm is formed on the surface of Cu-Cr alloys. Web5 de ago. de 2024 · The “Flash II” electron beam accelerator is a low-energy, high-current pulsed relativistic electron beam accelerator, which is used to simulate the thermo-mechanical effects caused by the interaction between X-rays and materials in nuclear explosions. Four impulse probes are mounted on the bracket in the drift tube. Webthe high voltage and high current pulse & electron beam in conjunction with field emission type electron beam gun for HPM generation using microwave device like VIRCATOR are described. The main sub-systems of this accelerators are (i) 1.5 MV, 25 kJ Marx generator, (ii) 1 MV, 5 kJ, 100 ns Blumlein type pulse forming line (PFL), 1MV SF incarnate word pharmacy school tuition

Photoacoustic 2D actuator via femtosecond pulsed laser action on …

Web28 de mai. de 2024 · Abstract: High-current pulsed electron beam sources are the core components of high-power microwave systems. In order to meet the requirements of … Web1 de dez. de 2012 · @article{Li2012DevelopmentMO, title={Development mechanism of cathode surface plasmas of high current pulsed electron beam sources for microwave irradiation generation}, author={Limin Li and Lei Lei Chang and L Zhang and Jinliang Liu and G. Chen and Jianchun Wen}, journal={Laser and Particle Beams}, year={2012}, … in cite reference harvardWebNumerical simulation and experimental evidence for surface modification by high current pulsed electron beam. Hits: First Author ... Oxidation resistance of a hot-die steel (H13) … in cite textbook apa

"Web30 de nov. de 2024 · The “HOPE-I” type high-current pulsed electron beam (HCPEB) equipment was used to irradiate the pure aluminum material with Zr coating preset by ball milling to realize the alloying of a Zr–Al coating surface. The microstructure and phase analysis were conducted by XRD, SEM, and TEM. The experimental results show that … " - High current pulsed electron beam

High current pulsed electron beam

Web12 de set. de 2024 · Abstract. In experiments on ion acceleration in the Katran pulsed high-current relativistic electron beam generator with output voltage U ≤ 250 kV and current … Web13 de abr. de 2024 · In O-type devices an electron beam drifts in the same direction as the applied magnetic field. Among them, the O-type slow-wave devices use the axial slow-wave structure to achieve electron beam clustering and beam interaction. Both beam-forming methods are based on the conversion of a circular electron beam from a conventional …

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WebHigh Current Pulsed Electron Beam Generator. Abstract: A review is given of a simple and economical method of generating high current electron beams in the range of a … Web10 de jun. de 2024 · Abstract. X-ray diffraction analysis, optical metallography, and transmission electron microscopy demonstrated that irradiation with high-current pulsed electron beams in the melting mode leads to formation of residual compressive stresses and a finely dispersed globular-lamellar microstructure (the α, α', and α'' plates being …

Web28 de mai. de 2024 · High-current pulsed electron beam sources are the core components of high-power microwave systems. In order to meet the requirements of future applications, one needs to improve the performance of electron beam sources in terms of vacuum insulation, beam transportation, and thermal management. In this paper, we … Web26 de dez. de 2024 · chromium by high current pulsed electron beam treatment Chen Li, Qingfeng Guan, Jie Cai et al.-Compounded Surface Modification of ZK60 Mg Alloy by High Current Pulsed Electron Beam+Micro-plasma Oxidation Gao Bo, Hao Yi, Tu Ganfeng et al.-High-energy density beams and plasmas for micro- and nano-texturing of surfaces …

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Web1 de ago. de 2001 · The electron beam source, the main part of the system, produces an electron beam of low energy (10–40 keV), of high current (10 2 –10 3 A / cm 2), and with …

Web13 de abr. de 2024 · We study the formation of a high-current electron beam with a duration of 1 ns in a magnetically insulated coaxial diode with a cold cathode under varying residual gas pressure. It is demonstrated that before the transition from explosive electron emission in vacuum to the electron runaway regime in a gas, an increase in the beam … incarnate word pt programWebNew developments have made it possible to obtain electron-beam pulses representing currents of as high as 1 MA. The technology of beam generation is discussed along with … in cite text citation mlaWebIn this study, we present the results of the effect of duplex surface modification of 304-L stainless steel substrates by an electron-beam treatment (EBT) and subsequent deposition of diamond-like carbon coatings on the surface roughness and corrosion behavior. During the EBT process, the beam power was varied from 1000 to 1500 W. The successful … incarnate word qb wardWebThe diagnostics is based on the thermal imager registration of the imaging electron beam thermal print in a material with low bulk density and low thermal conductivity. Testing of … in cite reference examplesWeb26 de dez. de 2024 · chromium by high current pulsed electron beam treatment Chen Li, Qingfeng Guan, Jie Cai et al.-Compounded Surface Modification of ZK60 Mg Alloy by … in cite citation bookWeb13 de mar. de 2024 · The paper presents the results of the structure and properties modification of 20Cr23Ni18 (AISI 310) high chrome austenitic stainless steel after the exposure to the low energy high current pulsed electron beam (LEHCPEB) irradiation. The AISI 310 is used to manufacture machine components and mechanisms operating at … incarnate word physical therapy schoolWeb23 de mai. de 2010 · The typical requirement of high brightness electron beams for accelerator applications like short wavelength Free-Electron Lasers (FELs) in the X-UV … incarnate word quarterback