High current pulsed electron beam

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Web14 de abr. de 2024 · Optical drive. A VSe 2 nanosheet was attached on a horizontal polished sapphire substrate via mechanical exfoliation (ME) method, and it was … Web27 de abr. de 2004 · Physical models and numerical simulations are used to describe the thermal-mechanical process induced by high current pulsed electron beam (energy E=10–40 keV, energy density in a pulse S=1–6 J/cm 2, pulse duration τ=0.5–5 μs) irradiation. The temperature simulation reveals ultrahigh heating and cooling rates on the …

Temperature profile and crater formation induced in high-current …

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 jan. de 2024 · As Figures 1 and 2 show, PA6’s surface water contact angle without bombardment treatment by HCPEB is 75°, indicating that the original PA6 surface is hydrophilic. After bombarding the PA6 surface with 26 kV of high-current pulsed electron beam, the contact angle became 55°, showing increased hydrophilicity. fitted gold wedding dresses

Determination of the Pulsed Electron Beam Spectrum by Current …

Web7 de abr. de 2024 · A high output power and a high pulse energy can significantly enhance the scope of applications of the intense electron beam accelerator (IEBA) in physical … WebKeywords: high-current pulsed electron beam; heat-a ected zone; shock wave; thermal stress wave; grain reﬁnement 1. Introduction As an advanced surface modiﬁcation technique, high-current pulsed electron beam (HCPEB) technology has attracted scholarly attention in the ﬁeld of material surface modiﬁcation owing to the WebAfter high current pulsed electron beam treatment, many cracks are found on surface. The main reason is possibly due to the quasi-static thermal stresses accumulated along … fitted golf hats

Surface Alloys of 0.45 C Carbon Steel Produced by High Current Pulsed ...

Developments of Pulsed Electron Beam Sources for High-Power …

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 … 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 … fitted golf hats 7 5/8Web3 de nov. de 2024 · The high-current pulsed electron beam (HCPEB) is a new type of energy-carrying beam surface modification technology that has been developed in recent years [22,23,24]. An electron beam with high energy density can achieve a target heating rate as high as 10 9 K/s in a short pulse of microseconds. can i eat anything the day before colonoscopy

"Web12 de dez. de 2024 · Although the SC effect occurs under high charge conditions, a component of the interference fringe remained. Consequently, despite the high current … " - High current pulsed electron beam

High current pulsed electron beam

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 … WebThe thermal imaging diagnostics of measuring pulsed electron beam energy density is presented. ... Thermal imaging diagnostics of high-current electron beams Rev Sci Instrum. 2012 Oct;83(10):103301. doi: 10.1063/1.4756689. Authors A Pushkarev 1 , G Kholodnaya, R Sazonov, D Ponomarev. Affiliation 1 Tomsk ...

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Web13 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 … Web1 de ago. de 2016 · In order to realize a uniform high current pulsed electron beam irradiation for a circular component, we designed an annular cathode for HCPEB …

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. 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.

Web1 de jul. de 2024 · High-current pulsed electron-beam (PEB) treatment was applied as a surface finishing procedure for Ti–35Nb–7Zr–5Ta (TNZT) alloy produced by electron … 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 · 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 …

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 … can i eat apple in coughWeb1 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}, … fitted golf hats 7 7 8WebThe characterization of a high current, relativistic electron beam, designated the Super Pinch electron beam, has been performed using compact pulsed-power accelerators of … can i eat a potato with rootsWeb28 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 … can i eat a potato with sproutsWeb1 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 … can i eat apple in empty stomachWeb13 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 … fitted gorgeous wedding dressesWebAfter high current pulsed electron beam treatment, many cracks are found on surface. The main reason is possibly due to the quasi-static thermal stresses accumulated along the surface of the specimens during the electron beam treatment. The surface grain grow from Cr particles because of heating by electron beam, and their size is less than 200nm. fitted golf shirts