Plasma simulation and optimization for a miniaturized antenna ECR ion source

Peng, Shixiang; Zhang, Ailin; Wu, Wenbin; Ma, Tenghao; Jiang, Yaoxiang; Li, Kai; Zhang, Jingfeng; Zhang, Tao; Wen, Jiamei; Xu, Yuan; Guo, Zhiyu; Chen, Jiaer

doi:10.1016/j.nima.2021.165586

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…According to the research of ECR ion source workers, using an appropriate axial magnetic field distribution can help improve the extraction beam intensity of the ion source. The effects of three traditional axial magnetic field distributions often utilized in ECR ion sources on the ionization properties inside the discharge chamber are confirmed by modeling the plasma inside the discharge chamber [10,17,[25][26][27]. In Figure 8a, the three types of field distribution are displayed.…”

Section: Effects Of Three Classical Axial Magnetic Field Distribution...mentioning

confidence: 69%

Design of a Miniaturized Electron Cyclotron Resonance Ion Source for High-Voltage Proton Accelerator

Yu,

He,

Zhao

et al. 2023

Applied Sciences

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The Electron Cyclotron Resonance (ECR) ion source fulfills high-current, high-efficiency, and compactness requirements for high-voltage proton accelerators. It is a cathode-free source that uses microwaves to heat a magnetically confined plasma, so there is no cathode loss resulting in a short service life. We finished the design for a miniaturization ECR ion source system, including a microwave system and source body. The traditional microwave system’s scale, which is approximately 1 m, has been reduced to 0.234 m, and the transmission efficiency is greater than 90%. The influence of cavity size and magnetic field distribution on gas ionization is analyzed under the condition that the outer size of the permanent magnet ring is limited, and the optimal scheme of cavity size and saddle-shaped magnetic field distribution is obtained. This design meets the requirement of fitting the ion source system into the restricted space in the high-voltage accelerator’s head.

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Section: Effects Of Three Classical Axial Magnetic Field Distribution...mentioning

confidence: 69%

Design of a Miniaturized Electron Cyclotron Resonance Ion Source for High-Voltage Proton Accelerator

Yu,

He,

Zhao

et al. 2023

Applied Sciences

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“…collisions are the main types of reactions that ionize the background gas to form ions. The processes are shown in table 1[17][18][19], where H * with H 2 * refers to the excited states of H and H 2 .…”

mentioning

confidence: 99%

Magnetic field design of solenoid for cold cathode Penning ion source of miniature neutron tube

Jia

et al. 2023

Plasma Sci. Technol.

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Abstract. A high yield and beam stable neutron tube can be applied in many fields. It is of great significance to the optimal external magnetic field intensity of cold cathode Penning ion source (PIS) and precisely control the movement of deuterium (D), tritium (T) ions and electrons in the source of the neutron tubes. A cold cathode PIS is designed based on the solenoidal magnetic field to obtain better uniformity of the magnetic field and higher yield of the neutron tube. The degree of magnetic field uniformity among the magnetic block, double magnetic rings, and solenoidal ion sources is compared by finite element simulation (FES) methods. By using drift diffusion approximation (DDA) and magnetic field coupling method, the plasma distribution of hydrogen and the relationship between plasma density and magnetic field intensity at 0.06 Pa pressure and solenoid magnetic field are obtained. The results show that the solenoidal ion source has the most uniform magnetic field distribution. The optimum magnetic field strength of about 0.1 T is obtained in the ion source at an excitation voltage of 1 V. The maximum average number density of monatomic hydrogen ions (H+) is 1×108 /m3 and an ion beam current of about 14.51 μA is formed under the -5000 V extraction field. The study of the solenoidal magnetic field contributes to the understanding of the particle dynamics within the PIS and provides a reference for the further improvement of the source performance for the neutron tube in the future. Keywords: Plasma; PIS; DDA; Magnetic field intensityity

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Electric field design of cold cathode Penning ion source for miniaturization neutron tube

Jia,

Cao,

et al. 2024

Nuclear Instruments and Methods in Physics Research Section A:

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Plasma simulation and optimization for a miniaturized antenna ECR ion source

Cited by 9 publications

References 37 publications

Design of a Miniaturized Electron Cyclotron Resonance Ion Source for High-Voltage Proton Accelerator

Design of a Miniaturized Electron Cyclotron Resonance Ion Source for High-Voltage Proton Accelerator

Magnetic field design of solenoid for cold cathode Penning ion source of miniature neutron tube

Electric field design of cold cathode Penning ion source for miniaturization neutron tube

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