FLS2018 - List of Authors (Wang, N.)

Paper	Title	Page
MOP2WB01	Accelerator Physics Studies for the High Energy Photon Source (HEPS) in Beijing	22
	Y. Jiao, X. Cui, Z. Duan, Y.Y. Guo, D. Ji, J.Y. Li, X.Y. Li, Y.M. Peng, Q. Qin, S.K. Tian, J.Q. Wang, N. Wang, Y. Wei, G. Xu, H.S. Xu, F. Yan, C.H. Yu, Y.L. Zhao IHEP, Beijing, People's Republic of China
	The High Energy Photon Source (HEPS) is the next ring-based light source with an emittance of tens of picometers, and a circumference of about 1.3 km to be built in China soon in a few years. After 10 years' evolution, the design for the High Energy Photon Source is recently bascially determined. We will report the lattice design and physics studies on HEPS, covering issues of storage lattice design and optimization, booster design, injection design, collective effects, error study, insertion device effects, longitudinal dynamics, etc.
	Slides MOP2WB01 [7.280 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-MOP2WB01
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TUA2WB04	Ion Instability in the HEPS Storage Ring	34
	S.K. Tian, N. Wang IHEP, Beijing, People's Republic of China
	The High Energy Photon Source (HEPS), a kilometre scale storage ring light source, with a beam energy of 6 GeV and transverse emittances of a few tens of pm.rad, is to be built in Beijing and now is under design. We investigate the ion instability in the storage ring with high beam intensity and low-emittance. We performe a weak-strong simulation to show characteristic phenomena of the instability in the storage ring.
	Slides TUA2WB04 [3.446 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-TUA2WB04
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WEP2PT021	The Design and Test of a Stripline Kicker for HEPS	117
	H. Shi, J. Chen, L. Huo, P. Liu, X.L. Shi, G. Wang, L. Wang, N. Wang IHEP, Beijing, People's Republic of China
	A fast stripline kicker is adopted for High Energy Photon Source (HEPS) on-axis injection. The optimization of a prototype 750 mm long kicker has been finished. The 3D simulation results show the final design of wide vane with end cover lowers the beam loss about 31% than the original design does. We develop a feedthrough model with machinable glass ceramic and achieve a VSWR under 1.3 in 0~2 GHz. The assembly of kicker and commercial feedthroughs has been tested with Keysight E5071C. The testing results of S parameters and TDR value show a good agreement with simulation ones.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-WEP2PT021
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WEP2PT024	Influences of Harmonic Cavities on the Single-Bunch Instabilities in Electron Storage Rings	128
	H.S. Xu, N. Wang IHEP, Beijing, People's Republic of China
	Single-bunch instabilities usually determine the bunch performance at high charges as well as the highest single- bunch currents in storage rings. It has been demonstrated that the passive harmonic cavities, which have been widely used in electron storage rings of the third-generation synchrotron light sources, can generally make the beam more stable. However, the influences of the harmonic cavities on the single-bunch instabilities are still not fully understood. We hereby present our study of both longitudinal and transverse single-bunch instabilities when using different settings of the harmonic cavities.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-WEP2PT024
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Accelerator Physics Studies for the High Energy Photon Source (HEPS) in Beijing

22

Y. Jiao, X. Cui, Z. Duan, Y.Y. Guo, D. Ji, J.Y. Li, X.Y. Li, Y.M. Peng, Q. Qin, S.K. Tian, J.Q. Wang, N. Wang, Y. Wei, G. Xu, H.S. Xu, F. Yan, C.H. Yu, Y.L. Zhao
IHEP, Beijing, People's Republic of China

The High Energy Photon Source (HEPS) is the next ring-based light source with an emittance of tens of picometers, and a circumference of about 1.3 km to be built in China soon in a few years. After 10 years' evolution, the design for the High Energy Photon Source is recently bascially determined. We will report the lattice design and physics studies on HEPS, covering issues of storage lattice design and optimization, booster design, injection design, collective effects, error study, insertion device effects, longitudinal dynamics, etc.

Slides MOP2WB01 [7.280 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-MOP2WB01

Export •

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

TUA2WB04

Ion Instability in the HEPS Storage Ring

34

S.K. Tian, N. Wang
IHEP, Beijing, People's Republic of China

The High Energy Photon Source (HEPS), a kilometre scale storage ring light source, with a beam energy of 6 GeV and transverse emittances of a few tens of pm.rad, is to be built in Beijing and now is under design. We investigate the ion instability in the storage ring with high beam intensity and low-emittance. We performe a weak-strong simulation to show characteristic phenomena of the instability in the storage ring.

Slides TUA2WB04 [3.446 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-TUA2WB04

Export •

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

WEP2PT021

The Design and Test of a Stripline Kicker for HEPS

117

H. Shi, J. Chen, L. Huo, P. Liu, X.L. Shi, G. Wang, L. Wang, N. Wang
IHEP, Beijing, People's Republic of China

A fast stripline kicker is adopted for High Energy Photon Source (HEPS) on-axis injection. The optimization of a prototype 750 mm long kicker has been finished. The 3D simulation results show the final design of wide vane with end cover lowers the beam loss about 31% than the original design does. We develop a feedthrough model with machinable glass ceramic and achieve a VSWR under 1.3 in 0~2 GHz. The assembly of kicker and commercial feedthroughs has been tested with Keysight E5071C. The testing results of S parameters and TDR value show a good agreement with simulation ones.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-WEP2PT021

Export •

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

WEP2PT024

Influences of Harmonic Cavities on the Single-Bunch Instabilities in Electron Storage Rings

128

H.S. Xu, N. Wang
IHEP, Beijing, People's Republic of China

Single-bunch instabilities usually determine the bunch performance at high charges as well as the highest single- bunch currents in storage rings. It has been demonstrated that the passive harmonic cavities, which have been widely used in electron storage rings of the third-generation synchrotron light sources, can generally make the beam more stable. However, the influences of the harmonic cavities on the single-bunch instabilities are still not fully understood. We hereby present our study of both longitudinal and transverse single-bunch instabilities when using different settings of the harmonic cavities.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-WEP2PT024

Export •

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