SAP2017 - List of Authors (Zhang, Y.)

Paper	Title	Page
MOBH3	CEPC Parameter Choice	10
	D. Wang, T.J. Bian, X. Cui, J. Gao, H. Geng, B. Sha, N. Wang, Y. Wang, C.H. Yu, J.Y. Zhai, Y. Zhang IHEP, Beijing, People's Republic of China
	The 100km Double Ring configuration with shared super conducting RF systems has been defined as baseline by CEPC steering committee. CEPC is compatible with W and Z experiment. Requirement for energy acceptance of Higgs has been reduced to 1.1% by enlarging the ring to 100 km. For CDR, W and Z will use the same lattice as Higgs, and the luminosity for Z is at the level of 10³⁴cm^-2s^-1.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOBH3
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MOPH07	Study of the Stability of Longitudinal Beam Dynamic of CEPC for Uneven Filling	40
	Y.S. Sun, D.J. Gong, N. Wang, J.Y. Zhai, Y. Zhang IHEP, Beijing, People's Republic of China
	PDR is a choice of CEPC design scheme, at any given time will contain a train of 50-70 bunches populate adjacent buckets and the remaining buckets unfilled. A consequence of an uneven filling scheme in the storage ring is that within train the synchronous phase will vary from bunch to bunch. This paper is to describe the tracking of the stability of longitudinal beam dynamic for CEPC, with the aim of including the main effects affecting the beam dynamics (i.e. the bunch-by-bunch feedback, the effect of the HOMs, the synchrotron radiation).
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH07
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MOPH08	Multiobjective Optimization of Dynamic Aperture at Off-axis Injection Lattice of HEPS	43
	J. Wu, Y.M. Peng, Y. Zhang IHEP, Beijing, People's Republic of China
	The off-axis injection scheme is also considered at HEPS. A large beta insertion section is need in the case, which breaks the symmetry of the machine. We introduce two designs of the injection section. There exist clear difference for the dynamic aperture between the two designs. The low-order nonlinear resonance driving terms is calculated and compared. The results show a correlation between momentum acceptance and the off-momentum driving terms. We enlarge the dynamic aperture by tuning the on-momentum and off-momentum non-linear driving terms with a multi-objective optimization code.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH08
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Paper

Title

Page

CEPC Parameter Choice

10

D. Wang, T.J. Bian, X. Cui, J. Gao, H. Geng, B. Sha, N. Wang, Y. Wang, C.H. Yu, J.Y. Zhai, Y. Zhang
IHEP, Beijing, People's Republic of China

The 100km Double Ring configuration with shared super conducting RF systems has been defined as baseline by CEPC steering committee. CEPC is compatible with W and Z experiment. Requirement for energy acceptance of Higgs has been reduced to 1.1% by enlarging the ring to 100 km. For CDR, W and Z will use the same lattice as Higgs, and the luminosity for Z is at the level of 10³⁴cm^-2s^-1.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOBH3

Export •

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

MOPH07

Study of the Stability of Longitudinal Beam Dynamic of CEPC for Uneven Filling

40

Y.S. Sun, D.J. Gong, N. Wang, J.Y. Zhai, Y. Zhang
IHEP, Beijing, People's Republic of China

PDR is a choice of CEPC design scheme, at any given time will contain a train of 50-70 bunches populate adjacent buckets and the remaining buckets unfilled. A consequence of an uneven filling scheme in the storage ring is that within train the synchronous phase will vary from bunch to bunch. This paper is to describe the tracking of the stability of longitudinal beam dynamic for CEPC, with the aim of including the main effects affecting the beam dynamics (i.e. the bunch-by-bunch feedback, the effect of the HOMs, the synchrotron radiation).

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH07

Export •

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

MOPH08

Multiobjective Optimization of Dynamic Aperture at Off-axis Injection Lattice of HEPS

43

J. Wu, Y.M. Peng, Y. Zhang
IHEP, Beijing, People's Republic of China

The off-axis injection scheme is also considered at HEPS. A large beta insertion section is need in the case, which breaks the symmetry of the machine. We introduce two designs of the injection section. There exist clear difference for the dynamic aperture between the two designs. The low-order nonlinear resonance driving terms is calculated and compared. The results show a correlation between momentum acceptance and the off-momentum driving terms. We enlarge the dynamic aperture by tuning the on-momentum and off-momentum non-linear driving terms with a multi-objective optimization code.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH08

Export •

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