Simulation of the thermal effect on high power Bi target for the large-scale <sup>211</sup>At production

Xiong Jie; Dou Guoliang; Sun Liangting; Wang Yang; Qin Zhi; Ren Jieru; Zhao Yongtao; Zhao Hongwei

doi:10.11884/HPLPB202436.230403

Volume 36 Issue 9

Aug. 2024

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Article Navigation > High Power Laser and Particle Beams > 2024 > 36(9): 094005

Xiong Jie, Dou Guoliang, Sun Liangting, et al. Simulation of the thermal effect on high power Bi target for the large-scale 211At production[J]. High Power Laser and Particle Beams, 2024, 36: 094005. doi: 10.11884/HPLPB202436.230403

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Xiong Jie, Dou Guoliang, Sun Liangting, et al. Simulation of the thermal effect on high power Bi target for the large-scale ²¹¹At production[J]. High Power Laser and Particle Beams, 2024, 36: 094005. doi: 10.11884/HPLPB202436.230403

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Simulation of the thermal effect on high power Bi target for the large-scale ²¹¹At production

doi: 10.11884/HPLPB202436.230403

Xiong Jie^1
,,
Dou Guoliang^{2, 3},
Sun Liangting^{2, 3},
Wang Yang²,
Qin Zhi^{2, 3},
Ren Jieru¹,
Zhao Yongtao^{1
,
,},
Zhao Hongwei^{2, 3}

1.
Department of Future Technology, Xi’an Jiaotong University, Xi’an 710000, China
2.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3.
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2024-02-15
Accepted Date: 2024-06-30
Rev Recd Date: 2024-06-30

Available Online: 2024-07-18

Publish Date: 2024-08-16

Abstract

Abstract

To improve the reliability and operation life of metallic Bi targets for the production of medical isotope ²¹¹At using high current α beam, several beam uniformization methods were simulated and compared. The thermal effect of 500 eμA α beam bombarding a Bi target with wobbler magnet was modeled and analyzed by computational fluid dynamics (CFD) method, which provided key technical support for the design of target system and the improvement of target life time. The results showed that the peak beam thermal effect on the target was obviously reduced by applying beam scanning. In front of the target, a wobbler magnet was used to periodically scan the beam, which could effectively reduce the temperature on Bi target surface. With a scanning frequency of 50 Hz, the highest temperature on Bi target was 189.8 ℃, lower than the melting point of Bi metal (271.3 ℃), which could meet the temperature requirement of Bi target under such a high beam power condition.
- Bi target,
- α beam,
- At-211,
- isotope production,
- computational fluid dynamics

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References(20)

References

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