Physics design and optimization of the fourth-generation synchrotron light sources

Yi Jiao; Zhenghe Bai

doi:10.11884/HPLPB202234.220136

Journals >High Power Laser and Particle Beams >Volume 34 >Issue 10 >Page 104004 > Article

High Power Laser and Particle Beams
Vol. 34, Issue 10, 104004 (2022)

Physics design and optimization of the fourth-generation synchrotron light sources

Yi Jiao^1、2 and Zhenghe Bai^3、*

Author Affiliations

¹Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

²University of Chinese Academy of Sciences, Beijing 100049, China

³National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

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DOI: 10.11884/HPLPB202234.220136 Cite this Article

Yi Jiao, Zhenghe Bai. Physics design and optimization of the fourth-generation synchrotron light sources[J]. High Power Laser and Particle Beams, 2022, 34(10): 104004 Copy Citation Text

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Fig. 1. MAX IV conventional 7BA lattice^[6] and the ESRF-EBS H7BA lattice^[9]

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Fig. 2. SLS-2 LGB/RB unit cell lattice^[19]

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Fig. 3. Final solutions of optimization of the HEPS brightness and dynamic aperture (different colors denote different dynamic aperture areas)

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Fig. 4. Field profile of the pulsed nonlinear kicker of HALF

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Fig. 5. Comparison of vacuum chambers for SLS, a third-generation synchrotron light source,and for its fourth-generation upgrade SLS-2 (unit: mm)^[45]

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light source	energy/ GeV	circumference/m	natural emittance/ (pm·rad)	momentum compaction/10⁻⁵	energy loss per turn/MeV	number of straight sections	H/V β @ long straight/m
ESRF-EBS	6.0	844	133	8.7	2.56	32	6.9/2.7
APS-U	6.0	1103.6	41.7	4.0	2.74	40	5.19/2.4
HEPS	6.0	1360.4	34.8	1.8	2.64	48	8.18/5.0(2.56/2.31)

Table 1. Main parameters of high-energy fourth-generation synchrotron light sources being in operation or under construction

light source	energy/GeV	circumference/m	lattice	natural emittance/ (pm·rad)	number of straight sections	momentum compaction/10⁻⁵	natural damping time (H/V/L)/ms
ALS-U	2.0	196.5	9BA	109	12	20	7.7/14.4/12.7
HALF	2.2	479.86	6BA	86	20+20	9	27.2/37.7/23.4
Elettra 2.0	2.4	259.2	6BA	214	12+12	12	5.5/9.1/6.8
SLS-2	2.7	288	7BA	158	12	10.5	4.1/7.5/6.4
SOLEIL-U	2.75	353.74	7BA-4BA	81	20	9.1	7.1/13.2/11.7
MAX IV	3.0	528	7BA	328	20	30.6	15.8/29.4/25.8
Sirius	3.0	518.4	5BA	250	20	16.4	16.9/22.0/12.9
SKIF	3.0	476.14	7BA	72	16	7.6	9.2/17.9/17.0
ILSF	3.0	528	5BA	270	20	18.2	18.9/26.0/16.0
Diamond-II	3.5	560.56	6BA	159	24+24	11	9.5/18.1/16.4

Table 2. Main parameters of medium- and low-energy fourth-generation synchrotron light source designs (Elettra 2.0, Diamond-II and HALF have long and short straight sections in each lattice period)

Yi Jiao, Zhenghe Bai. Physics design and optimization of the fourth-generation synchrotron light sources[J]. High Power Laser and Particle Beams, 2022, 34(10): 104004

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