IPAC2017 - List of Authors (Chen, J.X.)

Paper	Title	Page
WEPVA070	Alignment and Calibration for Collimation System in CSNS/RCS	3432
	J.B. Yu, L. Dong, L. Kang, B. Li, X.J. Nie, A.X. Wang, G.Y. Wang, X.L. Wang, J.S. Zhang IHEP, Beijing, People's Republic of China J.X. Chen, T. Luo, C.J. Ning CSNS, Guangdong Province, People's Republic of China
	Funding: National Natural Science Foundation of China (Grant Nos.11375217) In order to reduce the uncontrolled losses in the localized station, the beam collimation system has been performed for the 1.6GeV synchrotron of CSNS. The CSNS/RCS transverse collimation system is designed to be a two-stage system which consists of one primary collimator and four secondary collimators. All collimators had completed processing and now been installed in the tunnel. To meet the requirements of physical system, alignment for collimation system have to be done before circulating beams. This paper will show the alignment technique of collimation system. Then some problems during the alignment process will be mentioned. For the primary collimator will be replaced in second-stage of CSNS, and the alignment for the replaced collimator will be introduced finally.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEPVA070
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THPVA049	Introduction About Key Techniques of Critical Equipment in CSNS	4548
	L. Kang, H.Y. He, L. Liu, X.J. Nie, A.X. Wang, G.Y. Wang, J.B. Yu, J.S. Zhang, D.H. Zhu IHEP, Beijing, People's Republic of China J.X. Chen, C.J. Ning, Y.J. Yu CSNS, Guangdong Province, People's Republic of China
	Funding: National Natural Science Foundation of China (Grant Nos.11375217) The China Spallation Neutron Source (CSNS) is the complex consists of a negative hydrogen linear accelerator, a rapid cycling proton synchrotron (RCS) accelerating the beam to 1.6 GeV energy, a solid target station, and instruments for spallation neutron applications. Some equipment which work in high radiation zone, such as beam dumps, collimators, proton beam window and so on, should contain the performance of long lifetime, high vacuum, and remote maintenance easily. This paper mainly introduce some key techniques in these equipment, firstly quick-release remote clamp and remote maintenance tool in collimators and proton beam window will be introduced, then some key brazing techniques in processing of these equipment will also be mentioned. Vibration online monitoring system and other key techniques will be showed finally.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA049
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THPVA054	Research of the Chinese Spallation Neutron Source Stripper Foil	4562
	J.X. Chen CSNS, Guangdong Province, People's Republic of China L. Kang, J.B. Yu IHEP, Beijing, People's Republic of China
	Funding: This research was financially supported by the National Natural Science Foundation of China No.11375217. In the injection process of spallation neutron source, the effect of the stripper foil is extremely critical, which is the key equipment to realize the conversion of negative hydrogen ions into proton injection. This paper mainly introduces the research of Chinese Spallation Neutron Source (CSNS) stripper foil. The CSNS stripper foil is a diamond-like carbon (DLC) foil with a thickness of 100 micrograms per square centimetre. This paper introduces the study of the thickness of the CSNS stripper foil, the installation method and the installation process in the tunnel site. Simultaneously, the influence of the gas flow rate of the vacuum chamber on the vibration of the foils is simulated. In the end of this paper, the research plan and follow-up of the experimental equipment of the stripper foil are introduced.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA054
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Paper

Title

Page

Alignment and Calibration for Collimation System in CSNS/RCS

3432

J.B. Yu, L. Dong, L. Kang, B. Li, X.J. Nie, A.X. Wang, G.Y. Wang, X.L. Wang, J.S. Zhang
IHEP, Beijing, People's Republic of China
J.X. Chen, T. Luo, C.J. Ning
CSNS, Guangdong Province, People's Republic of China

Funding: National Natural Science Foundation of China (Grant Nos.11375217)
In order to reduce the uncontrolled losses in the localized station, the beam collimation system has been performed for the 1.6GeV synchrotron of CSNS. The CSNS/RCS transverse collimation system is designed to be a two-stage system which consists of one primary collimator and four secondary collimators. All collimators had completed processing and now been installed in the tunnel. To meet the requirements of physical system, alignment for collimation system have to be done before circulating beams. This paper will show the alignment technique of collimation system. Then some problems during the alignment process will be mentioned. For the primary collimator will be replaced in second-stage of CSNS, and the alignment for the replaced collimator will be introduced finally.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEPVA070

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPVA049

Introduction About Key Techniques of Critical Equipment in CSNS

4548

L. Kang, H.Y. He, L. Liu, X.J. Nie, A.X. Wang, G.Y. Wang, J.B. Yu, J.S. Zhang, D.H. Zhu
IHEP, Beijing, People's Republic of China
J.X. Chen, C.J. Ning, Y.J. Yu
CSNS, Guangdong Province, People's Republic of China

Funding: National Natural Science Foundation of China (Grant Nos.11375217)
The China Spallation Neutron Source (CSNS) is the complex consists of a negative hydrogen linear accelerator, a rapid cycling proton synchrotron (RCS) accelerating the beam to 1.6 GeV energy, a solid target station, and instruments for spallation neutron applications. Some equipment which work in high radiation zone, such as beam dumps, collimators, proton beam window and so on, should contain the performance of long lifetime, high vacuum, and remote maintenance easily. This paper mainly introduce some key techniques in these equipment, firstly quick-release remote clamp and remote maintenance tool in collimators and proton beam window will be introduced, then some key brazing techniques in processing of these equipment will also be mentioned. Vibration online monitoring system and other key techniques will be showed finally.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA049

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPVA054

Research of the Chinese Spallation Neutron Source Stripper Foil

4562

J.X. Chen
CSNS, Guangdong Province, People's Republic of China
L. Kang, J.B. Yu
IHEP, Beijing, People's Republic of China

Funding: This research was financially supported by the National Natural Science Foundation of China No.11375217.
In the injection process of spallation neutron source, the effect of the stripper foil is extremely critical, which is the key equipment to realize the conversion of negative hydrogen ions into proton injection. This paper mainly introduces the research of Chinese Spallation Neutron Source (CSNS) stripper foil. The CSNS stripper foil is a diamond-like carbon (DLC) foil with a thickness of 100 micrograms per square centimetre. This paper introduces the study of the thickness of the CSNS stripper foil, the installation method and the installation process in the tunnel site. Simultaneously, the influence of the gas flow rate of the vacuum chamber on the vibration of the foils is simulated. In the end of this paper, the research plan and follow-up of the experimental equipment of the stripper foil are introduced.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA054

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)