SAP2017 - List of Authors (Wang, L.)

Paper	Title	Page
MOPH13	Multi-bend Achromat Lattice with Interleaved Dispersion Bumps for a Diffraction-limited Storage Ring	52
	Z.H. Bai, L. Wang, D.R. Xu, P.H. Yang USTC/NSRL, Hefei, Anhui, People's Republic of China
	In this paper, we propose a new lattice concept of multi-bend achromat (MBA) for designing a diffraction-limited storage ring, which is inspired by the hybrid MBA concept proposed by ESRF EBS and the locally symmetric MBA concept recently proposed by ourselves. In this new MBA concept, two pairs of dispersion bumps are created in each cell, which accommodate sextupoles to correct chromaticities. For each pair of dispersion bumps, from the point of view of two different representations of a cell, many nonlinear effects caused by itself are cancelled out within one cell. For the two pairs of dispersion bumps, from the nonlinear cancellation point of view, they are interleaved. Compared to the hybrid MBA where only one pair of dispersion bumps is created in each cell, this new MBA can provide more knobs so as to better control tune shift terms, which is especially beneficial for enlarging dynamic momentum aperture.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH13
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MOPH14	Optimization of Closed Orbit Correction using Ant Colony Algorithm in HALS	55
	D.R. Xu, Z.H. Bai, G. Liu, L. Wang, H. Xu USTC/NSRL, Hefei, Anhui, People's Republic of China
	In this paper, we present a method using correctors as few as possible while controlling the residual closed orbit within an acceptable level based on ant colony optimization algorithm instead of the ideal optical properties. We prove that this method works well with HALS.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH14
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Paper

Title

Page

Multi-bend Achromat Lattice with Interleaved Dispersion Bumps for a Diffraction-limited Storage Ring

52

Z.H. Bai, L. Wang, D.R. Xu, P.H. Yang
USTC/NSRL, Hefei, Anhui, People's Republic of China

In this paper, we propose a new lattice concept of multi-bend achromat (MBA) for designing a diffraction-limited storage ring, which is inspired by the hybrid MBA concept proposed by ESRF EBS and the locally symmetric MBA concept recently proposed by ourselves. In this new MBA concept, two pairs of dispersion bumps are created in each cell, which accommodate sextupoles to correct chromaticities. For each pair of dispersion bumps, from the point of view of two different representations of a cell, many nonlinear effects caused by itself are cancelled out within one cell. For the two pairs of dispersion bumps, from the nonlinear cancellation point of view, they are interleaved. Compared to the hybrid MBA where only one pair of dispersion bumps is created in each cell, this new MBA can provide more knobs so as to better control tune shift terms, which is especially beneficial for enlarging dynamic momentum aperture.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH13

Export •

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

MOPH14

Optimization of Closed Orbit Correction using Ant Colony Algorithm in HALS

55

D.R. Xu, Z.H. Bai, G. Liu, L. Wang, H. Xu
USTC/NSRL, Hefei, Anhui, People's Republic of China

In this paper, we present a method using correctors as few as possible while controlling the residual closed orbit within an acceptable level based on ant colony optimization algorithm instead of the ideal optical properties. We prove that this method works well with HALS.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-SAP2017-MOPH14

Export •

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