Nonlinear δ Fsimulation studies of high-intensity ion beam propagation in a periodic focusing field

Thermal barrier coatings (TBCs) fabricated by electron-beam physical-vapor deposition (EB-PVD) were irradiated by high-intensity pulsed ion beam (HIPIB) at an ion current density of 100 A/cm2 with a shot number of 1-10. Microstructural features of the irradiated EB-PVD TBCs were characterized by using X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM), respectively. All the HIPIB-irradiated EB-PVD TBC surfaces present smooth and densified features. The originated intercolumnar channels growing out to the top-coat surface and nanometer-scale gaps inside each single column were sealed after the remelting of TBC surface induced by HIPIB, resulting in formation of a continuous remelted layer about 1-2 μm in thickness. The dense remelted layer can work as a barrier against the heat-flow and corrosive gases, and gives the possibility of improving thermal conductivity and oxidation resistance of the HIPIB irradiated EB-PVD TBC.

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Reduction of isotopically enriched 50Ti-dioxide for the production of high-intensity heavy-ion beam

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-013-2615-7 ◽

2013 ◽

Vol 299 (2) ◽

pp. 977-980 ◽

Cited By ~ 3

Author(s):

Bettina Lommel ◽

Andreas Beusch ◽

Willi Hartmann ◽

Annett Hübner ◽

Birgit Kindler ◽

...

Keyword(s):

High Intensity ◽

Ion Beam ◽

Heavy Ion ◽

Heavy Ion Beam

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Features of focusing of a high-intensity pulsed ion beam formed by a diode with a passive anode

Instruments and Experimental Techniques ◽

10.1134/s0020441217030277 ◽

2017 ◽

Vol 60 (4) ◽

pp. 562-569 ◽

Cited By ~ 2

Author(s):

X. P. Zhu ◽

L. Ding ◽

Q. Zhang ◽

A. I. Pushkarev ◽

M. K. Lei

Keyword(s):

High Intensity ◽

Ion Beam

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Numerical simulation of high-intensity metal ion beam generation

Journal of Physics Conference Series ◽

10.1088/1742-6596/1115/3/032007 ◽

2018 ◽

Vol 1115 ◽

pp. 032007 ◽

Cited By ~ 1

Author(s):

T V Koval ◽

A I Ryabchikov ◽

Tran My Kim An ◽

A R Shevelev ◽

D O Sivin ◽

...

Keyword(s):

Numerical Simulation ◽

High Intensity ◽

Metal Ion ◽

Ion Beam ◽

Beam Generation

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The effect of irradiation parameters of high-intensity pulsed ion beam on tribology performance of YWN8 cemented carbides

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2012.07.041 ◽

2012 ◽

Vol 209 ◽

pp. 143-150 ◽

Cited By ~ 9

Author(s):

Q.F. Wen ◽

Y. Liu ◽

Y.M. Wang ◽

F.G. Zhang ◽

X.P. Zhu ◽

...

Keyword(s):

High Intensity ◽

Ion Beam ◽

Cemented Carbides ◽

Tribology Performance

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High-intensity pulsed ion beam focusing by its own space charge

Laser and Particle Beams ◽

10.1017/s0263034618000514 ◽

2018 ◽

Vol 36 (4) ◽

pp. 470-476 ◽

Cited By ~ 4

Author(s):

X.P. Zhu ◽

Q. Zhang ◽

L. Ding ◽

C.C. Zhang ◽

Yu. Isakova ◽

...

Keyword(s):

Energy Density ◽

Space Charge ◽

High Intensity ◽

Ion Beam ◽

Beam Focusing ◽

Ion Focusing ◽

Metal Grid ◽

Low Energy Electrons ◽

Transport Region ◽

Total Divergence

AbstractThe paper presents the results of a study on propagation and focusing of high-intensity pulsed ion beams, produced by a self-magnetically insulated diode of semi-cylindrical geometry at the TEMP-6 accelerator (120 ns, 200–250 kV). We examined the space-charge neutralization of the beam, the energy density in the focus, the divergence of the beam, and its shot-to-shot displacement in the focal plane. It is found that the concentration of low-energy electrons in the beam is 1.3–1.5 times higher than the concentration of ions. We observed additional ion focusing by its own space charge. With an increase in the density of the net negative (electrons and ions) charge of the beam from 3.6 to 9 µC/cm2, the total divergence (the sum of the beam divergence in the vertical and horizontal planes) decreases from 11.4 to 4.5°. It leads to an increase in the energy density in the focus from 4 up to 10–12 J/cm2. To increase the electrons concentration in the beam, a metal grid installed in the ion beam transport region was used.

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