Development of an H<sup>0</sup>CT measurement system at the CSNS injection region

Qiu Ruiyang; Huang Weiling; Zeng Lei; Xu Zhihong; Li Fang; Meng Ming; Yang Tao; Wang Anxin; Liu Mengyu; Sun Jilei; Xu Taoguang

doi:10.11884/HPLPB202335.220142

Volume 35 Issue 2

Jan. 2023

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Article Navigation > High Power Laser and Particle Beams > 2023 > 35(2): 024004

Qiu Ruiyang, Huang Weiling, Zeng Lei, et al. Development of an H0CT measurement system at the CSNS injection region[J]. High Power Laser and Particle Beams, 2023, 35: 024004. doi: 10.11884/HPLPB202335.220142

Citation:

Qiu Ruiyang, Huang Weiling, Zeng Lei, et al. Development of an H⁰CT measurement system at the CSNS injection region[J]. High Power Laser and Particle Beams, 2023, 35: 024004. doi: 10.11884/HPLPB202335.220142

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Development of an H⁰CT measurement system at the CSNS injection region

doi: 10.11884/HPLPB202335.220142

Qiu Ruiyang^{1, 2
,},
Huang Weiling^{1, 2
,
,},
Zeng Lei^{1, 2},
Xu Zhihong^{1, 2},
Li Fang^{1, 2},
Meng Ming^{1, 2},
Yang Tao^{1, 2},
Wang Anxin^{1, 2},
Liu Mengyu³,
Sun Jilei^{1, 2},
Xu Taoguang²

1.
Spallation Neutron Source Science Center, Dongguan 523803, China
2.
Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2022-05-06
Accepted Date: 2022-10-11
Rev Recd Date: 2022-09-13

Available Online: 2022-10-17

Publish Date: 2023-01-14

Abstract

Abstract

The high intensity proton accelerator of China Spallation Neutron Source adopts the method of charge exchange injection. A carbon foil strips two electrons of H⁻ into H⁺, and proton beams are multiturn-painted in the phase space of the rapid cycling synchrontron for acceleration to 1.6 GeV. A new-developed beam current transformer (H⁰CT) was installed at the I-Dump beamline to measure the incompletely stripped H⁻ and H⁰ particles, for the sake of an accurate measurement of the stripping efficiency, together with a study of the service life of the foil stripper with different thicknesses. To measure such extremely weak microampere beam current, in the development of the H⁰CT measurement system, we took into account the external interference and the noises from probes, cables and electronics. The new design has minimized the impact of environmental noise, improved the signal-to-noise ratio, and successfully measured the microampere pulsed current.
- CSNS,
- H⁰CT,
- pulsed current measurement,
- microampere

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References(16)

References

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