Stripper foil installation and aerodynamics analysis

Chen Jiaxin; Yu Jiebing; Kang Ling; Zheng Jiaxu; Wang Anxin; Wang Guangyuan; Nie Xiaojun

doi:10.11884/HPLPB201830.170114

Volume 30 Issue 2

Feb. 2018

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Article Navigation > High Power Laser and Particle Beams > 2018 > 30(2): 025101

Chen Jiaxin, Yu Jiebing, Kang Ling, et al. Stripper foil installation and aerodynamics analysis[J]. High Power Laser and Particle Beams, 2018, 30: 025101. doi: 10.11884/HPLPB201830.170114

Citation:

Chen Jiaxin, Yu Jiebing, Kang Ling, et al. Stripper foil installation and aerodynamics analysis[J]. High Power Laser and Particle Beams, 2018, 30: 025101. doi: 10.11884/HPLPB201830.170114

Chen Jiaxin, Yu Jiebing, Kang Ling, et al. Stripper foil installation and aerodynamics analysis[J]. High Power Laser and Particle Beams, 2018, 30: 025101. doi: 10.11884/HPLPB201830.170114

Citation:

Chen Jiaxin, Yu Jiebing, Kang Ling, et al. Stripper foil installation and aerodynamics analysis[J]. High Power Laser and Particle Beams, 2018, 30: 025101. doi: 10.11884/HPLPB201830.170114

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Stripper foil installation and aerodynamics analysis

doi: 10.11884/HPLPB201830.170114

Chen Jiaxin^{1, 2
,
,},
Yu Jiebing^{1, 2},
Kang Ling^{1, 2},
Zheng Jiaxu^{1, 2},
Wang Anxin^{1, 2},
Wang Guangyuan^{1, 2},
Nie Xiaojun^{1, 2}

1.
Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
2.
Dongguan Neutron Science Center, Dongguan 523000, China

Received Date: 2017-04-10
Rev Recd Date: 2017-08-26
Publish Date: 2018-02-15

Abstract

Abstract

In the operation process of spallation neutron source injection system, the stripper foil is the key equipment to realize the conversion of negative hydrogen ions into proton injection. The nanometer to micrometer thick stripper foil is ultra-thin and fragile, and its installation and system vacuum attainment are much difficult, which is the focus of spallation neutron source research. This paper compares the present situation of the foils fixation with that of the foreign foils. The pressure distribution of the foil, as well as the pressure distribution of the diaphragm under different pressure difference between inlet and outlet, air disturbance around the foil and the system air flow, has been simulated by Fluent simulation. Finally, this paper gives a vacuum solution without sacrificing the stripper foil, which has obtained an ultrahigh vacuum environment for the system.
- stripper foil,
- ultra-thin foil mounting,
- dynamic analysis,
- vacuum attainment,
- foil protection

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References(6)

References

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