IPAC2016 - List of Authors (Wang, S.)

Paper	Title	Page
MOZB01	Construction and Beam Commissioning of CSNS Accelerators	47
	S. Wang, S. Fu, J. Zhang IHEP, Beijing, People's Republic of China
	CSNS (China Spallation Neutron Source) is a proton accelerator based facility for delivering spallation neu-trons to users. The main components are 80-MeV linac, 1.6-GeV RCS and neutron production target. The con-struction began in 2011, and now construction of the building and accelerator components is well in progress. Most of the components have been tested and installed into the tunnel. The ion source and RFQ have been suc-cessfully commissioned. The first DTL tank has success-fully completed the beam commissioning, and the beam commissioning for the other three DTL tank will be per-formed before the end of 2016. The RCS commissioning will start in the beginning of 2017. This presentation provides a complete overview of the status of construc-tion and beam commissioning.
	Slides MOZB01 [11.853 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOZB01
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MOPOY028	Low Power RF Tuning of the CSNS DTL	913
	H.C. Liu, Q. Chen, M.X. Fan, S. Fu, K.Y. Gong, A.H. Li, J. Peng, S. Wang, X. Wu, F.X. Zhao IHEP, Beijing, People's Republic of China B. Li, P.H. Qu, Y. Wang CSNS, Guangdong Province, People's Republic of China
	The China Spallation Neutron Source (CSNS) is an accelerator-based neutron source being built at dongguan, Guangdong province in China. A conventional 324MHz Alvarez-type Drift tube linac (DTL) is utilized to accelerate an H⁻ ion beam from 3MeV to 80MeV. The RF field tuning of DTL is necessary for compensating the unexpected error caused by manufacturing and assembling. For reasons of RF power saving it is convenient to build a long DTL tank, but this choice involves risks of accelerating field instability. This problem can be fixed by using the resonant coupling stabilization method and equipping DTL cavities with a series of post-couplers. A practical tuning method was proposed, an acceptable field distribution with a good stability was achieved for CSNS DTL-1.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY028
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MOPOY029	Transverse Emittance Measurements in CSNS Linac	916
	Z.P. Li, Y. Li, J. Peng, S. Wang IHEP, Beijing, People's Republic of China
	Commissioning of the front-end of the linac at CSNS has been accomplished. Double scanning slit system and wire-scanners were employed to carry out the transverse emittance measurements in both low energy beam transport (LEBT) and medium energy beam transport (MEBT). Different results of different measurement methods are presented and compared. Corresponding codes were developed for each of the emittance measurement methods.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY029
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TUPMB007	Research and Development of the Pulse Bump Magnet for the Injection System in CSNS/RCS	1118
	L. Huo, M.Y. Huang, W. Kang, Y.Q. Liu, J. Qiu, L. Wang, S. Wang IHEP, Beijing, People's Republic of China
	The H⁻ stripping painting injection is adopted in the Rapid Cycling Synchrotron (RCS) of China Spallation Neutron Source (CSNS). Painting injection is realized by eight pulse bump magnets. The pulse bump magnet is the key of the performance of painting, as well as the beam loss control. The manufacture and the field measurement of the eight pulse bump magnets have been completed. In the development of the magnets, some key technical problems on fabrication of coil were solved, and the field measurement results show that the magnets fulfil the design specification.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB007
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TUPMB008	Beam-Based Alignment for the Transport Line of CSNS	1121
	Y. Li, Y.W. An, Z.P. Li, W.B. Liu, S. Wang IHEP, Beijing, People's Republic of China
	Beam-based alignment (BBA) techniques are important tools for beam orbit steering in linear accelerators or transfer lines. In this paper this technique and the control system application programs developed based on XAL platform were applied to the beam commissioning for Medium Energy Beam Transport (MEBT) of CSNS to get the transverse misalignments of beam position monitor (BPM) and quad. The results shows that the absolute values of BPMs offsets are less than 0.6 mm and quads offsets are less than 0.05 mm，that is much smaller than the tolerance of the misalignment.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB008
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Paper

Title

Page

Construction and Beam Commissioning of CSNS Accelerators

47

S. Wang, S. Fu, J. Zhang
IHEP, Beijing, People's Republic of China

CSNS (China Spallation Neutron Source) is a proton accelerator based facility for delivering spallation neu-trons to users. The main components are 80-MeV linac, 1.6-GeV RCS and neutron production target. The con-struction began in 2011, and now construction of the building and accelerator components is well in progress. Most of the components have been tested and installed into the tunnel. The ion source and RFQ have been suc-cessfully commissioned. The first DTL tank has success-fully completed the beam commissioning, and the beam commissioning for the other three DTL tank will be per-formed before the end of 2016. The RCS commissioning will start in the beginning of 2017. This presentation provides a complete overview of the status of construc-tion and beam commissioning.

Slides MOZB01 [11.853 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOZB01

Export •

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

MOPOY028

Low Power RF Tuning of the CSNS DTL

913

H.C. Liu, Q. Chen, M.X. Fan, S. Fu, K.Y. Gong, A.H. Li, J. Peng, S. Wang, X. Wu, F.X. Zhao
IHEP, Beijing, People's Republic of China
B. Li, P.H. Qu, Y. Wang
CSNS, Guangdong Province, People's Republic of China

The China Spallation Neutron Source (CSNS) is an accelerator-based neutron source being built at dongguan, Guangdong province in China. A conventional 324MHz Alvarez-type Drift tube linac (DTL) is utilized to accelerate an H⁻ ion beam from 3MeV to 80MeV. The RF field tuning of DTL is necessary for compensating the unexpected error caused by manufacturing and assembling. For reasons of RF power saving it is convenient to build a long DTL tank, but this choice involves risks of accelerating field instability. This problem can be fixed by using the resonant coupling stabilization method and equipping DTL cavities with a series of post-couplers. A practical tuning method was proposed, an acceptable field distribution with a good stability was achieved for CSNS DTL-1.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY028

Export •

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

MOPOY029

Transverse Emittance Measurements in CSNS Linac

916

Z.P. Li, Y. Li, J. Peng, S. Wang
IHEP, Beijing, People's Republic of China

Commissioning of the front-end of the linac at CSNS has been accomplished. Double scanning slit system and wire-scanners were employed to carry out the transverse emittance measurements in both low energy beam transport (LEBT) and medium energy beam transport (MEBT). Different results of different measurement methods are presented and compared. Corresponding codes were developed for each of the emittance measurement methods.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY029

Export •

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

TUPMB007

Research and Development of the Pulse Bump Magnet for the Injection System in CSNS/RCS

1118

L. Huo, M.Y. Huang, W. Kang, Y.Q. Liu, J. Qiu, L. Wang, S. Wang
IHEP, Beijing, People's Republic of China

The H⁻ stripping painting injection is adopted in the Rapid Cycling Synchrotron (RCS) of China Spallation Neutron Source (CSNS). Painting injection is realized by eight pulse bump magnets. The pulse bump magnet is the key of the performance of painting, as well as the beam loss control. The manufacture and the field measurement of the eight pulse bump magnets have been completed. In the development of the magnets, some key technical problems on fabrication of coil were solved, and the field measurement results show that the magnets fulfil the design specification.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB007

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

TUPMB008

Beam-Based Alignment for the Transport Line of CSNS

1121

Y. Li, Y.W. An, Z.P. Li, W.B. Liu, S. Wang
IHEP, Beijing, People's Republic of China

Beam-based alignment (BBA) techniques are important tools for beam orbit steering in linear accelerators or transfer lines. In this paper this technique and the control system application programs developed based on XAL platform were applied to the beam commissioning for Medium Energy Beam Transport (MEBT) of CSNS to get the transverse misalignments of beam position monitor (BPM) and quad. The results shows that the absolute values of BPMs offsets are less than 0.6 mm and quads offsets are less than 0.05 mm，that is much smaller than the tolerance of the misalignment.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB008

Export •

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