Simulation of ion beam extraction and focusing system

Soliman, B.A.; Abdelrahman, M. M.; Helal, A.G.; Abdelsalam, F. W.

doi:10.1088/1674-1137/35/1/017

Cited by 14 publications

(4 citation statements)

References 8 publications

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“…11, where the electric field is optimal for focusing the beam at this hole diameter Fig. 13 depicts the relationship between the extractor holes and beam diameter, in which the beam diameter is proportional to the extraction voltages and the hole diameter as well, [8] as a consequence of reducing ion losses at the electrodes' edges, on the other hand, the beam diameter is inversely proportional to extraction voltage. The simulation and experimental measurements of an efficient ion beam extracted from the newly source agreed well.…”

Section: Experimental Investigations and Resultsmentioning

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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Section: Experimental Investigations and Resultsmentioning

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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show abstract

“…are given. In addition, it can simulate time of flight, mass spectrometry, quadrupole, ion source, optical detector and other more complex physical models [13,15].…”

Section: The Simion Simulation Softwarementioning

confidence: 99%

SIMION simulation of a slow pulsed positron beam

Hong-Xia¹,

Liu²,

Chuan-Bo³

et al. 2012

Chinese Phys. C

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A new slow pulsed positron beam, including a positron source, a moderator, a chopper, a prebuncher, a main-buncher and a sample chamber, etc, has been installed and tested. It is necessary to simulate the acceleration, transportation and space focusing of positrons to meet the needs of beam debugging and further positron annihilation experiments. The result from SIMION simulations shows that the radius of the focused positron beam is less than 5 mm, which is further confirmed in our practical debugging process.

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“…Additionally, they described the possible plasma boundary curvatures during ion extraction. [7] Dorf et al investigated the relationship between the extracted beam current and plasma density, and suggested that beam formation in the plateau regime could suppress noise and stabilize the extracted current. [8] Keller observed the process of ion beam formation and the extraction system for high-current beams extracted from plasma ion sources.…”

Section: Introductionmentioning

confidence: 99%

Influence of extraction voltage on electron and ion behavior characteristics

Xu 徐,

Gan 甘,

Shi 石

et al. 2024

Chinese Phys. B

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The characteristics of the extracted ion current have a significant impact on the design and testing of ion source performance. In this paper, 2D3V particle in cell (2D3V PIC) method is utilized to simulate plasma motion and ion extraction characteristics under various initial plasma velocity distributions and extraction voltages in a Cartesian coordinate system. The plasma density is in the order of 1015 m-3~1016 m-3 and the extraction voltage is in the order of 100 V~1000V. The study investigates the impact of various extraction voltages on the velocity and density distributions of electrons and positive ions, and analyzes the influence of different initial plasma velocity distributions on the extraction current. The simulation results revealed that the main reason for the variation of extraction current is the space charge force formed by the relative aggregation of positive and negative net charges. This lays the foundation for a deeper understanding of extraction beam characteristics.

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Simulation of ion beam extraction and focusing system

Cited by 14 publications

References 8 publications

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

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

SIMION simulation of a slow pulsed positron beam

Influence of extraction voltage on electron and ion behavior characteristics

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