Effect of target material on neutron output and sputtering yield of D-D neutron tube

Guo, Wenting; Zhao, Si-Jia; Yu, Zitong; Shi, Guang-Yu; Jing, Shi-Wei

doi:10.1016/j.nimb.2020.04.017

Cited by 6 publications

(3 citation statements)

References 18 publications

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“…Many encouraging advances have been made to solve the above problems [10][11][12][13][14][15]. For example, Shi et al [16] studied the molybdenum-titanium alloy film, which could reduce carbon pollution.…”

Section: + = +mentioning

confidence: 99%

“…Scandium titanium alloy is also a potential alloy target, which has high neutron yield and strong sputtering resistance ability. Guo et al [15] studied scandium titanium alloy target, and the neutron yield (D-D neutron tube) could reach 6.73×10 7 n s −1 . Falabella et al [18] developed a metal palladium coating, that was used to prevent the titanium target film from being oxidized.…”

Section: + = +mentioning

confidence: 99%

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The influence of target film material and coating on neutron yield and sputtering yield

Liu¹,

Lu²,

Xu³

et al. 2022

Mater. Res. Express

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The long-life, high yield deuterium-deuterium (D-D) neutron tube has become one of the research hotspots. Here, deuterated polyethylene target, heavy water target and titanium target were investigated by Stopping and Range of Ions in Matter (SRIM). The calculation showed that the deuterated polyethylene target, which was a potential target material, had the highest yield at an incident energy of 120 keV. Further, considering the unfavorable factors such as impurity ions and high temperature, the coating was used to protect the target material. Diamond, boron carbide, boron nitride, silicon carbide, and aluminum carbide were selected. The simulation results showed that the diamond composite deuterated polyethylene film had the best sputtering resistance, and the aluminum nitride composite heavy water target film had the lowest sputtering yield. The two coating materials shield the target, reduced the energy loss of incident ions, and provided a new method for the research of high yield and long life neutron tube.

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Section: + = +mentioning

confidence: 99%

Section: + = +mentioning

confidence: 99%

The influence of target film material and coating on neutron yield and sputtering yield

Liu¹,

Lu²,

Xu³

et al. 2022

Mater. Res. Express

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“…The deuterium (D) and tritium (T) ions extracted from the ion source are firstly accelerated by high voltage electric field, and then focused and bombarded to the ion target, finally producing high energy neutrons. The ion target is one of the most important components, where the D and T atoms are stored, and the D-D and D-T nuclear reactions occur, and it requires a normal toleration temperature of less than 150 °C [ 9 , 10 ]. The neutron tube is an accelerator vacuum system with all the inside objects sealed in a tube shell made of ceramic or stainless steel [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Dissection for Neutron Tube Shell via Continuous-Wave Laser and Ultra-Short Pulse Laser

et al. 2022

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The sealed neutron tube shell dissection process utilizing the traditional lathe turning method suffers from low efficiency and high cost due to the frequency of replacement of the diamond knife. In this study, a hybrid dissection method is introduced by combining the continuous-wave (CW) laser for efficient tangential groove production with an ultra-short pulse laser for delamination scanning removal. In this method, a high-power CW laser is firstly employed to make a tapered groove on the shell’s surface, and then a femtosecond pulse laser is used to micromachine the groove in order to obtain a cutting kerf. The thermal field was theoretically investigated in a finite element model. The simulation results show that the width of the area of temperature exceeding 100 °C is 1.9 mm and 0.4 mm with rotating speeds of 20 rad/s and 60 rad/s, respectively. In addition, a 2 mm deep slot in the 25 mm diameter tube was successfully produced in 1 min by a kilowatt fiber laser, and a 500-femtosecond pulse laser was employed to cut a plate with a material removal rate of 0.2 mm3/min. By using the hybrid method, the cutting efficiency was improved about 49 times compared to the femtosecond laser cutting. According to the simulation and experimental results, this method provides a high-efficiency and non-thermal cutting technique for reclaimed metallic neutron tube shells with millimeter-level thick walls, which has the advantages of non-contact, minimal thermal diffusion, and no effect of molten slag. It is indicated that the hybrid dissection method not only offers a new solution for thick neutron tube shell cutting but also extends the application of laser cutting techniques.

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Flow-solid-heat coupled analyses of scandium target for deuterium- deuterium neutron generator

Li,

Qian,

Zhu

et al. 2025

Fusion Engineering and Design

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Effect of target material on neutron output and sputtering yield of D-D neutron tube

Cited by 6 publications

References 18 publications

The influence of target film material and coating on neutron yield and sputtering yield

The influence of target film material and coating on neutron yield and sputtering yield

Hybrid Dissection for Neutron Tube Shell via Continuous-Wave Laser and Ultra-Short Pulse Laser

Flow-solid-heat coupled analyses of scandium target for deuterium- deuterium neutron generator

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