PEPX-type lattice design and optimization for the High Energy Photon Source

JIAO Yi; XU Gang

doi:10.1088/1674-1137/39/6/067004

Chinese Physics C> 2015, Vol. 39> Issue(6) : 067004 DOI: 10.1088/1674-1137/39/6/067004

PEPX-type lattice design and optimization for the High Energy Photon Source

JIAO Yi ,
XU Gang

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A new generation of storage ring-based light sources, called diffraction-limited storage rings (DLSR), with emittance approaching the diffraction limit for multi-keV photons by using multi-bend achromat lattice, has attracted worldwide and extensive studies of several laboratories, and been seriously considered as a means of upgrading existing facilities in the imminent future. Among various DLSR proposals, the PEPX design demonstrated that it is feasible to achieve sufficient ring acceptance for off-axis injection in a DLSR, by designing the lattice based on the ‘third-order achromat’ concept and with a special high-beta injection section. For the High Energy Photon Source (HEPS) planned to be built in Beijing, a PEPX-type lattice has been designed and continuously improved. In this paper, we report the evolution of the PEPX-type design for HEPS, and discuss the main issues relevant to the linear optics design and nonlinear optimization.

References

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JIAO Yi and XU Gang. PEPX-type lattice design and optimization for the High Energy Photon Source[J]. Chinese Physics C, 2015, 39(6): 067004. doi: 10.1088/1674-1137/39/6/067004

JIAO Yi and XU Gang. PEPX-type lattice design and optimization for the High Energy Photon Source[J]. Chinese Physics C, 2015, 39(6): 067004. doi: 10.1088/1674-1137/39/6/067004 shu

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Received: 2014-11-24
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

PEPX-type lattice design and optimization for the High Energy Photon Source

Received Date: 2014-11-24

Accepted Date: 1900-01-01

Available Online: 2015-06-05

Abstract: A new generation of storage ring-based light sources, called diffraction-limited storage rings (DLSR), with emittance approaching the diffraction limit for multi-keV photons by using multi-bend achromat lattice, has attracted worldwide and extensive studies of several laboratories, and been seriously considered as a means of upgrading existing facilities in the imminent future. Among various DLSR proposals, the PEPX design demonstrated that it is feasible to achieve sufficient ring acceptance for off-axis injection in a DLSR, by designing the lattice based on the ‘third-order achromat’ concept and with a special high-beta injection section. For the High Energy Photon Source (HEPS) planned to be built in Beijing, a PEPX-type lattice has been designed and continuously improved. In this paper, we report the evolution of the PEPX-type design for HEPS, and discuss the main issues relevant to the linear optics design and nonlinear optimization.

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