Improving nonlinear performance of the HEPS baseline design with a genetic algorithm

Yi Jiao

doi:10.1088/1674-1137/40/7/077002

Chinese Physics C> 2016, Vol. 40> Issue(7) : 077002 DOI: 10.1088/1674-1137/40/7/077002

Improving nonlinear performance of the HEPS baseline design with a genetic algorithm

Yi Jiao ^,

1.
Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Abstract
HTML
Reference
Related

PDF

Abstract：
A baseline design for the High Energy Photon Source has been proposed, with a natural emittance of 60 pm·rad within a circumference of about 1.3 kilometers. Nevertheless, the nonlinear performance of the design needs further improvements to increase both the dynamic aperture and the momentum acceptance. In this study, genetic optimization of the linear optics is performed, so as to find all the possible solutions with weaker sextupoles and hence weaker nonlinearities, while keeping the emittance at the same level as the baseline design. The solutions obtained enable us to explore the dependence of nonlinear dynamics on the working point. The result indicates that with the same layout, it is feasible to obtain much better nonlinear performance with a delicate tuning of the magnetic field strengths and a wise choice of the working point.
- High Energy Photon Source ,
- nonlinear performance ,
- working point ,
- genetic optimization

References

[1]	R. Hettel, Journal of Synchrotron Radiation, 21:843-855(2014)
[2]	Y. Jiao, Y. Cai, A.W. Chao, and Phys. Rev. ST Accel. Beams, 14:054002(2011)
[3]	M. Borland, G. Decker, L. Emery et al, Journal of Synchrotron Radiation, 21:912-936(2014)
[4]	Y. Jiao, G. Xu, S. Chen et al, High Power Laser and Particle Beams, 27(4):045108(2015) (in Chinese)
[5]	X.M. Jiang et al, BAPS preliminary design report, internal report. (Beijing:Institute of High Energy Physics, CAS, 2012) (in Chinese)
[6]	G. Xu and Y. Jiao, Chin. Phys. C, 37(5):057003(2013)
[7]	G. Xu, Y. Jiao, and S.K. Tian, Chin. Phys. C, 37(6):067002(2013)
[8]	Y. Jiao and G. Xu, Chin. Phys. C, 37(11):117005(2013)
[9]	G. Xu and Y.M. Peng, Chin. Phys. C, 39(3):037005(2015)
[10]	Y.S. Zhu, F.S. Chen, W. Kang et al, in Proc. of IPAC2013 (Shanghai, 2013), p.3531
[11]	S.K. Tian, J.Q. Wang, G. Xu, and Y. Jiao, Chin. Phys. C, 39(6):067001(2015)
[12]	Y. Jiao and G. Xu, Chin. Phys. C, 39(6):067004(2015)
[13]	L. Wu, X.L. Wang, C.H. Li et al, Chin. Phys. C, 39(8):087002(2015)
[14]	S.K. Tian, Y. Jiao, and J.Q. Wang, Chin. Phys. C, 39(12):127001(2015)
[15]	G. Xu, Y. Jiao, and Y. Peng, Chin. Phys. C, 40(2):027001(2016)
[16]	L. Farvacque, N. Carmignani, J. Chavanne et al, in Proc. of IPAC2013 (Shanghai, 2013), p. 79
[17]	L. Yang, Y. Li, W. Guo et al, Phys. Rev. ST Accel. Beams, 14:054001(2011)
[18]	W. Gao, L. Wang, and W. Li, Phys. Rev. ST Accel. Beams, 14:094001(2011)
[19]	K. Deb, A. Pratap, S. Agarwal et al, IEEE Transactions on Evolutionary Computation, 6(2):182(2002)
[20]	Y. Jiao, S.X. Fang, Q. Qin et al, Nucl. Instrum. Methods Phys. Res., Sect. A, 566:270(2006)
[21]	L. Nadolski and J. Laskar, Phys. Rev. ST Accel. Beams, 6:114801(2003)

[1]	Guan-Ying Wang , Ran Han , Xiao-Ping Ouyang , Jin-Cheng He , Jun-Yao Yan . Potential reduction interior point algorithm unfolding of neutron energy spectrum measured by recoil proton method. Chinese Physics C, 2017, 41(5): 056201. doi: 10.1088/1674-1137/41/5/056201
[2]	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
[3]	Gang Xu , Yi Jiao , Yue-Mei Peng . ESRF-type lattice design and optimization for the High Energy Photon Source. Chinese Physics C, 2016, 40(2): 027001. doi: 10.1088/1674-1137/40/2/027001
[4]	HE Xiang , ZHAO Feng-Li , WANG Xiang-Jian . Development of a high-power and ultra-high-vacuum waveguide coupler working at C/X band. Chinese Physics C, 2015, 39(5): 057007. doi: 10.1088/1674-1137/39/5/057007
[5]	ZHANG Fei-Hong , YU Bo-Xiang , HU Wei , YANG Ma-Sheng , CAO Guo-Fu , CAO Jun , ZHOU Li . Measurement of the liquid scintillator nonlinear energy response to electron. Chinese Physics C, 2015, 39(1): 016003. doi: 10.1088/1674-1137/39/1/016003
[6]	LI He-Ting , JIA Qi-Ka . Optimization of single-step tapering amplitude and energy detuning for high-gain FELs. Chinese Physics C, 2015, 39(1): 018101. doi: 10.1088/1674-1137/39/1/018101
[7]	JIAO Yi , XU Gang . PEPX-type lattice design and optimization for the High Energy Photon Source. Chinese Physics C, 2015, 39(6): 067004. doi: 10.1088/1674-1137/39/6/067004
[8]	M. Hosseinzadeh , H. Afarideh . Optimization and numerical simulation for the extraction system of the H^- multicusp ion source. Chinese Physics C, 2014, 38(5): 057003. doi: 10.1088/1674-1137/38/5/057003
[9]	JIAO Yi . Evolutionary genetic optimization of the injector beamdynamics for the ERL test facility at IHEP. Chinese Physics C, 2014, 38(8): 088102. doi: 10.1088/1674-1137/38/8/088102
[10]	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
[11]	WANG Fang-Fang , ZHU Jing-Tao , ZHONG Qi , WANG Zhan-Shan , Philippe Jonnard , Karine Le , Michel Andr , Michel Fialin . Influence of working gas pressure on the performance of W/Si multilayers. Chinese Physics C, 2012, 36(9): 909-914. doi: 10.1088/1674-1137/36/9/021
[12]	SHAN Lian-Qiang , WU Feng-Juan , GUAN Hui-Jun , ZHANG Jing-Bo , TANG Gui-Xin , HUO Lei . Size of the freeze-out source in high energy heavy ion collisions. Chinese Physics C, 2009, 33(5): 359-363. doi: 10.1088/1674-1137/33/5/008
[13]	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
[14]	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
[15]	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
[16]	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
[17]	MO Xiao-Hu , FU Cheng-Dong , ZHANG Jian-Yong , QIN Qing , QU Hua-Min , WANG Yi-Fang , XU Jin-Qiang , ZHANG Tian-Bao . Working principles of the energy measurement system at BEPCⅡ. Chinese Physics C, 2008, 32(12): 995-1002. doi: 10.1088/1674-1137/32/12/011
[18]	Liu Zhanwen , Zhang Wen , Zhao Hongwei , Yuan Ping , Zhang Xuezhen , Guo Xiaohong , Li Xixia , Zhou Sixin , Wang Yifang , Wei Baowen . A New Working Model for ECR Source. Chinese Physics C, 1996, 20(S4): 399-402.
[19]	Pei Guoxi , Xie Jialin , Zhou Shu , Sun Songlan . Optimization of the BEPC Positron Source. Chinese Physics C, 1990, 14(S2): 125-134.
[20]	Zhuang Pengfei , Liu Lianshou . Nonlinear Effects and Target Mass Dependence in High Energy Nucleus-Nucleus Collisions. Chinese Physics C, 1990, 14(S2): 179-187.

Access

Get Citation

Yi Jiao. Improving nonlinear performance of the HEPS baseline design with a genetic algorithm[J]. Chinese Physics C, 2016, 40(7): 077002. doi: 10.1088/1674-1137/40/7/077002

Yi Jiao. Improving nonlinear performance of the HEPS baseline design with a genetic algorithm[J]. Chinese Physics C, 2016, 40(7): 077002. doi: 10.1088/1674-1137/40/7/077002 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2015-10-08
Revised: 2016-02-19

Fund

Supported by NSFC (11475202, 11405187) and Youth Innovation Promotion Association CAS (2015009)

Article Metric

Article Views(1673)
PDF Downloads(130)
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

Improving nonlinear performance of the HEPS baseline design with a genetic algorithm

Corresponding author: Yi Jiao,

1. Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2015-10-08

Accepted Date: 2016-02-19

Available Online: 2016-07-05

Fund Project: Supported by NSFC (11475202, 11405187) and Youth Innovation Promotion Association CAS (2015009)

Abstract: A baseline design for the High Energy Photon Source has been proposed, with a natural emittance of 60 pm·rad within a circumference of about 1.3 kilometers. Nevertheless, the nonlinear performance of the design needs further improvements to increase both the dynamic aperture and the momentum acceptance. In this study, genetic optimization of the linear optics is performed, so as to find all the possible solutions with weaker sextupoles and hence weaker nonlinearities, while keeping the emittance at the same level as the baseline design. The solutions obtained enable us to explore the dependence of nonlinear dynamics on the working point. The result indicates that with the same layout, it is feasible to obtain much better nonlinear performance with a delicate tuning of the magnetic field strengths and a wise choice of the working point.

HTML

Reference (21)

Improving nonlinear performance of the HEPS baseline design with a genetic algorithm

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article