Lattice optimization for the HLS-Ⅱ storage ring

BAI Zheng-He; WANG Lin; JIA Qi-Ka; LI Wei-Min

doi:10.1088/1674-1137/37/1/017001

Chinese Physics C> 2013, Vol. 37> Issue(1) : 017001 DOI: 10.1088/1674-1137/37/1/017001

Lattice optimization for the HLS-Ⅱ storage ring

Abstract
HTML
Reference
Related

PDF

Abstract：
The upgrade project of the Hefei Light Source (HLS), named HLS-Ⅱ, is under way, whose storage ring will be reconstructed. The HLS-Ⅱ storage ring has lower emittance and more straight sections available for insertion devices compared with the present HLS storage ring. The scan method is applied to the linear lattice optimization for the HLS-Ⅱ storage ring to get thorough information about the lattice. To reduce the computation amount, several scans with different grid spacing values are conducted. And, the calculation of the chromatic sextupole strength for the achromatic mode is included in the scan, which is useful for nonlinear lattice optimization. To better analyze the obtained solutions in the scan, the lattice properties and the variables of quadrupole strengths are statistically analyzed. And, the process of selecting solutions is described in detail, including the choice of the working point, the settings for the emittance and optical functions, and the restriction of maximum magnet strength. Two obtained lattices, one for the achromatic mode and the other for the non-achromatic mode, are presented, including their optical functions and optimized dynamic apertures.

References

[1]

David S Robin, WAN Wei-Shi, Fernando Sannibale. Phys. Rev. ST Accel. Beams, 2008, 11(2): 024002[2] Hardt W, Jager J, Mohl D. A General Analytical Expression for the Chromaticity of Accelerator Rings. CERN PS/LEA/Note 82-5, 1982[3] ZHANG Hao, LI Wei-Min, FENG Guang-Yao et al. Chin. Phys. C (HEP NP), 2012, 36(1): 91[4] Robin D, Safranek J, Decking W. Phys. Rev. ST Accel. Beams, 1999, 2(4): 044001[5] James Kennedy, Russell Eberhart. Particle Swarm Optimization. In: Proc. IEEE Int'l. Conf. on Neural Networks. Piscataway, NJ: IEEE Service Center, 1995. 1942[6] BAI Zheng-He, WANG Lin, LI Wei-Min. Enlarging Dynamic and Momentum Aperture by Particle Swarm Optimization. In: Proc. of IPAC 2011. Spain: San Sebastian, 2011. 948[7] Tan Y R E, Boland M J, LeBlanc G. Applying Frequency Map Analysis to the Australian Synchrotron Storage Ring. In: Proc. of 2005 PAC. USA: Knoxville, 2005. 407[8] Borland M. Elegant: A Flexible SDDS-Compliant Code for Accelerator Simulation. APS LS-287, 2000

[1]	Yi Jiao , Gang Xu . Optimizing the lattice design of a diffraction-limited storage ring with a rational combination of particle swarm and genetic algorithms. Chinese Physics C, 2017, 41(2): 027001. doi: 10.1088/1674-1137/41/2/027001
[2]	Wei-Wei Gao , He-Ting Li , Lin Wang . Preliminary study of EEHG-based superradiant undulator radiation at the HLS-II storage ring. Chinese Physics C, 2017, 41(7): 078101. doi: 10.1088/1674-1137/41/7/078101
[3]	Jia-Jun Zheng , Yong-Liang Yang , Bao-Gen Sun , Fang-Fang Wu , Chao-Cai Cheng , Kai Tang , Jun-Hao Wei . Central RF frequency measurement of the HLS-Ⅱ storage ring. Chinese Physics C, 2016, 40(4): 047005. doi: 10.1088/1674-1137/40/4/047005
[4]	A. Aksoy . Low emittance lattice for the storage ring of the Turkish Light Source Facility TURKAY. Chinese Physics C, 2015, 39(6): 067002. doi: 10.1088/1674-1137/39/6/067002
[5]	ZHANG Qing-Kun , WANG Lin , LI Wei-Min , GAO Wei-Wei . Broadband impedance calculations and single bunch instabilities estimations of of the HLS-II storage ring. Chinese Physics C, 2015, 39(12): 127004. doi: 10.1088/1674-1137/39/12/127004
[6]	XU Gang , JIAO Yi . Towards the ultimate storage ring: The lattice design forBeijing Advanced Photon Source. Chinese Physics C, 2013, 37(5): 057003. doi: 10.1088/1674-1137/37/5/057003
[7]	CHEN Jia , WANG Lin , LI Wei-Min , GAO Wei-Wei . Optimization of magnet sorting in a storage ring using genetic algorithms. Chinese Physics C, 2013, 37(12): 127004. doi: 10.1088/1674-1137/37/12/127004
[8]	LI Jing-Yi , LIU Gong-Fa , XU Wei , LI Wei-Min , LI Yong-Jun . A possible approach to reduce the emittance of HLS-Ⅱ storage ring using a Robinson wiggler. Chinese Physics C, 2013, 37(10): 107006. doi: 10.1088/1674-1137/37/10/107006
[9]	XU Wei , HE Duo-Hui . Design and optimization of a longitudinal feedback kicker cavity for the HLS-Ⅱ storage ring. Chinese Physics C, 2013, 37(3): 037003. doi: 10.1088/1674-1137/37/3/037003
[10]	BAI Zheng-He , WANG Lin , JIA Qi-Ka , LI Wei-Min . Lattice study for the HLS-Ⅱ storage ring. Chinese Physics C, 2013, 37(4): 047004. doi: 10.1088/1674-1137/37/4/047004
[11]	FAN Hao , WU Cong-Feng , LIU Guang-Chao . Calculations of operating schemes for a passive harmonic cavity in HLS-Ⅱ. Chinese Physics C, 2012, 36(9): 895-899. doi: 10.1088/1674-1137/36/9/018
[12]	ZHANG Hao , LI Wei-Min , FENG Guang-Yao , WANG Lin , ZHANG Shan-Cai , LI Wei , LIANG Jun-Jun . The magnet design for the HLS storage ring upgrade project. Chinese Physics C, 2012, 36(1): 91-95. doi: 10.1088/1674-1137/36/1/016
[13]	YANG Dan-Dan , HUANG Wen-Hui . Design for the lattice with 4-DBA structure of the compact laser-electron storage ring. Chinese Physics C, 2011, 35(8): 784-790. doi: 10.1088/1674-1137/35/8/016
[14]	TIAN Shun-Qiang . A design strategy of achievable linear optics for a complex storage ring lattice. Chinese Physics C, 2010, 34(7): 1009-1015. doi: 10.1088/1674-1137/34/7/015
[15]	CHEN Jian-Hui , ZHANG Man-Zhou , ZHAO Zhen-Tang . Orbit response matrix analysis and lattice periodicity restoration of the SSRF storage ring. Chinese Physics C, 2009, 33(9): 785-788. doi: 10.1088/1674-1137/33/9/015
[16]	YU Pei-Cheng , WANG Yu , SHEN Xiao-Zhe , HUANG Wen-Hui , YAN Li-Xin , DU Ying-Chao , LI Ren-Kai , TANG Chuan-Xiang . Optics for the lattice of the compact storage ring for a Compton X-ray source. Chinese Physics C, 2009, 33(S2): 151-153. doi: 10.1088/1674-1137/33/S2/039
[17]	TIAN Shun-Qiang , LIU Gui-Min , LI Hao-Hu , HOU Jie , CHEN Guang-Ling , WAN Cheng-Lan . Nonlinear optimization of the modern synchrotron radiation storage ring based on frequency map analysis. Chinese Physics C, 2009, 33(2): 127-134. doi: 10.1088/1674-1137/33/2/011
[18]	TIAN Shun-Qiang , ZHANG Wen-Zhi , LI Hao-Hu , ZHANG Man-Zhou , HOU Jie , ZHOU Xue-Mei , LIU Gui-Min . Linear optics calibration and nonlinear optimization during the commissioning of the SSRF storage ring. Chinese Physics C, 2009, 33(S2): 83-85. doi: 10.1088/1674-1137/33/S2/021
[19]	TIAN Shun-Qiang , LIU Gui-Min , HOU Jie , CHEN Guang-Ling , CHEN Sen-Yu . Improved nonlinear optimization in the storage ring of the modernsynchrotron radiation light source. Chinese Physics C, 2009, 33(1): 65-73. doi: 10.1088/1674-1137/33/1/014
[20]	TIAN Shun-Qiang , LIU Gui-Min , LI Hao-Hu , HOU Jie , ZHANG Wen-Zhi . Tune optimization of the third generation light source storage ring based onFrequency Map Analysis. Chinese Physics C, 2009, 33(3): 224-231. doi: 10.1088/1674-1137/33/3/012

Access

Get Citation

BAI Zheng-He, WANG Lin, JIA Qi-Ka and LI Wei-Min. Lattice optimization for the HLS-Ⅱ storage ring[J]. Chinese Physics C, 2013, 37(1): 017001. doi: 10.1088/1674-1137/37/1/017001

BAI Zheng-He, WANG Lin, JIA Qi-Ka and LI Wei-Min. Lattice optimization for the HLS-Ⅱ storage ring[J]. Chinese Physics C, 2013, 37(1): 017001. doi: 10.1088/1674-1137/37/1/017001 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2012-02-20
Revised: 1900-01-01

Article Metric

Article Views(2095)
PDF Downloads(314)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Lattice optimization for the HLS-Ⅱ storage ring

Corresponding author: BAI Zheng-He,

Corresponding author: WANG Lin,

Received Date: 2012-02-20

Accepted Date: 1900-01-01

Available Online: 2013-01-05

Abstract: The upgrade project of the Hefei Light Source (HLS), named HLS-Ⅱ, is under way, whose storage ring will be reconstructed. The HLS-Ⅱ storage ring has lower emittance and more straight sections available for insertion devices compared with the present HLS storage ring. The scan method is applied to the linear lattice optimization for the HLS-Ⅱ storage ring to get thorough information about the lattice. To reduce the computation amount, several scans with different grid spacing values are conducted. And, the calculation of the chromatic sextupole strength for the achromatic mode is included in the scan, which is useful for nonlinear lattice optimization. To better analyze the obtained solutions in the scan, the lattice properties and the variables of quadrupole strengths are statistically analyzed. And, the process of selecting solutions is described in detail, including the choice of the working point, the settings for the emittance and optical functions, and the restriction of maximum magnet strength. Two obtained lattices, one for the achromatic mode and the other for the non-achromatic mode, are presented, including their optical functions and optimized dynamic apertures.

HTML

Reference (1)

Lattice optimization for the HLS-Ⅱ storage ring

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article