High current pulsed electron beam

Author: kcmn

August undefined, 2024

Web29 de set. de 2024 · The algorithm and results of calculating the integral and differential energy spectra of a pulsed electron beam (350–500 keV, … 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 …

Coatings Free Full-Text Studies on the Thermodynamic …

Web1 de jan. de 2024 · The electron beam is generated by “pseudo-spark” discharge device and characterized by high current (hundreds of amperes to thousands of amperes), … 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. cipherwaste polymers

Formation of Residual Stresses in the Surface Layers of ... - Springer

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 … WebHigh-current pulsed electron-beam (PEB) treatment was applied as a surface finishing procedure for Ti–35Nb–7Zr–5Ta (TNZT) alloy produced by electron beam melting … 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 … cipher vit

High Chrome Steel Modified by High-Current Pulsed Electron Beam …

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

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 … 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 … dialysis facility compare.govWebHigh current pulsed electron beam (HCPEB) is a new type of surface modification technology [19, 20, 21]. During the instantaneous process of HCPEB bombardment, the higher energy (10 7 –10 9 W/cm 2 ) acts on the surface of the material in a very short time (several microseconds), resulting in extremely rapid heating, cooling, melting, and even … dialysis facility administrator resume

"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 … " - High current pulsed electron beam

High current pulsed electron beam

Temporal resolution in transmission electron microscopy using a ...

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 … 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 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.

Did you know?

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 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 …

Web15 de nov. de 2024 · Recently, high-current pulsed electron beam (HCPEB) irradiation has been proposed as an innovative non-equilibrium surface modification technology, … Web13 de mar. de 2024 · It is shown that the exposure of the AISI 310 to high-current pulsed electron beam results in a high-speed melting of the surface layer, creates the …

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 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 …

Web1 de mar. de 2016 · A high-current electron beam is extracted from the plasma layer and is accelerated by the strong diode electric field. Further, an increase of the time interval …

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 … cipherwave bee certificateWeb1 de out. de 2004 · Physical models and numerical simulations are applied to describe the thermal–dynamical processes of the high current pulsed electron beam (HCPEB) … dialysis facility compare analysisWebthe 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 dialysis facility compare gpsWeb15 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 … dialysis facility compare dataWeb1 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. cipherwave hard drive 3tb priceWeb13 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 … dialysis facility compare medicareWeb14 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 … dialysis facility compare reports