Pulsed plasma chemical synthesis of TiO2@TixCyOz nanocomposite

Sazonov, Roman; Kholodnaya, Galina; Ponomarev, Denis; Lapteva, Olga; Конусов, Ф. В.; Gadirov, R. M.; Zhirkov, Igor

doi:10.1080/1536383x.2020.1871331

Cited by 5 publications

(1 citation statement)

References 22 publications

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“…In recent years, trials with intense pulsed electron beams (IPEBs) for electron and X-ray radiation have been extensively developed. These IPEB accelerators with compact designs, producing pulsed electron beams with energy of 6-200 J per pulse, electron energy in the range from 100 to 500 keV, beam current in kA scale, sub-microsecond (75-250 ns) pulse duration, and repetition up to 50 pulses per second (pps) [16,17], have been widely studied in material synthesis and processing [18], wastewater [19] and gas [20] purification, agricultural irradiation [21], and medical material preparation [22]. When used for X-rays, these IPEB sources also exhibit virtues such as compact design, high mobility, and flexibility in deployment [17].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Transmission X-ray Target for Intense Pulsed Electron Beam Accelerators

Zhang

Egorov

et al. 2022

Applied Sciences

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X-ray sources based on pulsed electron accelerators stimulate the development of bremsstrahlung converter designs. The numerical optimization of transmission-type X-ray targets for maximum X-ray output by pulsed electron beams was carried out in the present work. The targets featured a combination of a heavy element (tungsten or molybdenum) X-ray conversion layer and a titanium membrane that served as the vacuum window, thermal shielding for converter heat, and an electron dump. The energy spectrum of the electron beam generated via explosive emission was analyzed via the space-charge effect, and was utilized for the source sampling algorithm for electron transportation simulation with a Monte Carlo method for X-ray emission analysis. It was revealed that the transmission photon intensity of a mono-material target is primarily affected by the thickness of the target, and there exists an optimal target thickness within which the photon fluence is restricted by insufficient electron stopping; when exceeded, the extra thickness of the X-ray converter target imposes absorption and attenuates the generated X-ray. Analysis on dual-layer targets proved that this optimized converter target thickness, combined with a proper titanium window, produces the highest X-ray photon emissions.

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