Optimization and Characterization of Modified Cold Grid Cathode Penning Ion Source

Mahmoud, S.M.; Reheem, A. M. Abdel; El‐Sayed, H. M.; El‐Khabeary, H.

doi:10.1007/s11090-021-10187-2

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…Cu nano layer is deposited onto standard size (15 mm by 25 mm) textile (cotton, polyester, and polyester/cotton) samples using penning ion source sputtering technique as illustrated in Fig. 1 (Mahmoud et al, 2021). The conditions used for sputtering deposition of copper nanoparticles in this experiment are 1x10 -3 mbar for the pressure.…”

Section: Methodsmentioning

confidence: 99%

Modification of Unfinished Textiles by Cu Deposition Developed by Cold Cathode Ion Source for Antimicrobial Application

et al. 2022

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T HE MAIN goal of the present work is to investigate the influence of depositing copper film on different unfinished textiles, namely; polyester, cotton and polyester/cotton, on their antimicrobial activity. Ion beam of argon gas is used for sputtering of copper target to deposit a thin film of copper on the textiles surface. The samples were characterized by SEM, FTIR, and XRD. The results show that copper nanoparticles are smoothly deposited onto the surface with no change on the chemical or the physical structure of the textiles. Ac conductivity was measured in the frequency range of 50Hz-5MHz and showed a slight increase with Cu nanoparticles deposition. The antimicrobial activity test showed an enhancement of the textiles ability to inhibit gram-positive S. aureus and gram-negative E. coli after copper deposition and the inhibition is higher for E. coli. Moreover, the results show the highest reduction ability of a modified cotton sample for both types of bacteria.

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Section: Methodsmentioning

confidence: 99%

Modification of Unfinished Textiles by Cu Deposition Developed by Cold Cathode Ion Source for Antimicrobial Application

et al. 2022

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“…A cold grid cathode Penning ion source was used to irradiate the as-prepared samples (0.2 mm thickness) with various fluencies of nitrogen ion beam. Figure 1 shows a schematic of the cold cathode ion source used for the irradiation process, installed at radiation physics department, National Center for Radiation Research and Technology, (NCRRT), Egyptian Atomic Energy Authority, (EAEA), [20]. The ion source is consists of stainless-steel anode of 30 mm inner diameter, 60 mm length, and two stainless-steel disc cathodes of 50 mm outer diameter and 2 mm thickness; The inner diameter of one cathode disc grid of 18 mm diameter.…”

Section: Nitrogen Ions Beam Irradiationmentioning

confidence: 99%

Nitrogen ion beam radiation induced modification on physico-chemical properties of poly (vinyl chloride)/ethylene vinyl acetate blends

Waly,

Shehata,

abdel reheem

et al. 2024

Arab Journal of Nuclear Sciences and Applications

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Poly (vinyl chloride) (PVC), ethylene vinyl acetate (EVA), and PVC/EVA (50/50 wt%) samples were synthesized using casting technique. The as-prepared samples were irradiated with various fluencies of nitrogen ion beam, using a broad beam cold cathode ion source. The structural, optical and thermal properties of pristine and irradiated samples were investigated using FTIR, XRD, UV-VIS, and TGA analytical techniques. FTIR and XRD investigation showed several changes in the crystal structure, intensity and position of the characteristic peaks for the investigated samples. The optical band gap energies for both PVC and EVA samples is being to decrease with increasing ion beam fluence, whereas 50/50 wt% PVC/EA blend sample exhibits an increment behavior as a result of increasing ion beam fluence. The thermal stability of ion beam bombarded samples decreased for PVC and EVA samples than that for pristine samples, whereas a noticeable increase in the stability of the 50/50 wt% PVC/EVA blend samples. It is clear that thermal decomposition is affected by nitrogen ion beam fluencies owing to the extent of crosslinking and degradation processes. The results showed that nitrogen ion beam bombardment significantly affect the physico-chemical properties of PVC, EVA, and PVC/EVA samples.

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“…Copper is used for the pear-shaped anode due to its high ionization coefficient [1]. Simultaneously, the cold plane cathode is constructed of aluminum with a high secondary electron emission coefficient, thereby increasing plasma density and ion beam current [2]. The generated ion beam current can be enhanced and confined by applying negative extraction voltages to varying hole diameters in the extractor electrode.…”

Section: Introductionmentioning

confidence: 99%

Study the Optimal Operative Conditions of New Glow Discharge Ion Source for Polymeric Treatment

Hassan

Soliman

El-Saftawy

et al. 2022

J. Phys.: Conf. Ser.

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The design, manufacturing, and systematic parametric evaluation of a modified glow discharge ion source (with a pear-shaped anode and a plane cathode) are detailed to extract low-power, high plasma density, and high-intensity ion beam current for material processing. The study includes determining the optimal operative conditions for ion source performance and optimizing its properties. The ion beam current was measured at various argon gas pressures and anode-cathode distances as well as its measurements at various ion source - collector plate distances. At the optimum settings, the influence of discharge pressure on the output current was evaluated using various gases (argon, oxygen, nitrogen and hydrogen). In addition, the influence of applied negative voltages on the extractor electrode (different hole diameters) on the generated ion beam current is being explored. Finally, SIMION computer program evaluated and studied ion beam optics. The simulation and experimental results for a highly efficient ion beam derived from the planned ion source agreed well.

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Optimization and Characterization of Modified Cold Grid Cathode Penning Ion Source

Cited by 9 publications

References 21 publications

Modification of Unfinished Textiles by Cu Deposition Developed by Cold Cathode Ion Source for Antimicrobial Application

Modification of Unfinished Textiles by Cu Deposition Developed by Cold Cathode Ion Source for Antimicrobial Application

Nitrogen ion beam radiation induced modification on physico-chemical properties of poly (vinyl chloride)/ethylene vinyl acetate blends

Study the Optimal Operative Conditions of New Glow Discharge Ion Source for Polymeric Treatment

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