Minimum emittance in TBA and MBA lattices

XU Gang; PENG Yue-Mei

doi:10.1088/1674-1137/39/3/037005

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2015, Vol. 39> Issue(3) : 037005 DOI: 10.1088/1674-1137/39/3/037005

Minimum emittance in TBA and MBA lattices

XU Gang ,
PENG Yue-Mei

Abstract
HTML
Reference
Related

PDF

Abstract：
For reaching a small emittance in a modern light source, triple bend achromats (TBA), theoretical minimum emittance (TME) and even multiple bend achromats (MBA) have been considered. This paper derived the necessary condition for achieving minimum emittance in TBA and MBA theoretically, where the bending angle of inner dipoles has a factor of 3^1/3 bigger than that of the outer dipoles. Here, we also calculated the conditions attaining the minimum emittance of TBA related to phase advance in some special cases with a pure mathematics method. These results may give some directions on lattice design.

[1]	Wei Sun , Long-Cheng Gui , Ying Chen , Ming Gong , Chuan Liu , Yu-Bin Liu , Zhaofeng Liu , Jian-Ping Ma , Jian-Bo Zhang . Glueball spectrum from N_f=2 lattice QCD study on anisotropic lattices. Chinese Physics C, 2018, 42(9): 093103. doi: 10.1088/1674-1137/42/9/093103
[2]	Rui-Xuan Huang , Chad Mitchell , Qi-Ka Jia , Christos Papadopoulos , Fernando Sannibale . Simulation study on the emittance compensation of off-axis emitted beam in RF photoinjector. Chinese Physics C, 2016, 40(11): 117004. doi: 10.1088/1674-1137/40/11/117004
[3]	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
[4]	TIAN Sai-Ke , WANG Jiu-Qing , XU Gang , JIAO Yi . Intra-beam scattering studies for low emittance at BAPS. Chinese Physics C, 2015, 39(6): 067001. doi: 10.1088/1674-1137/39/6/067001
[5]	CUI Xiao-Hao , JIAO Yi , XU Gang , HUANG Xi-Yang . Suppression of the emittance growth induced by CSR in a DBA cell. Chinese Physics C, 2014, 38(11): 117001. doi: 10.1088/1674-1137/38/11/117001
[6]	JIAO Yi , XU Gang . Pulsed sextupole injection for Beijing Advanced Photon Source with ultralow emittance. Chinese Physics C, 2013, 37(11): 117005. doi: 10.1088/1674-1137/37/11/117005
[7]	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
[8]	WANG Wen-Jing , HUANG Sen-Lin , QUAN Sheng-Wen , LIN Lin , LIU Ke-Xin . An emittance measurement device for a space-charge dominated electron beam. Chinese Physics C, 2012, 36(9): 867-870. doi: 10.1088/1674-1137/36/9/013
[9]	GAO Wei-Wei , WANG Lin , LI Wei-Min , HE Duo-Hui . Low emittance lattice optimization using a multi-objective evolutionary algorithm. Chinese Physics C, 2011, 35(9): 859-864. doi: 10.1088/1674-1137/35/9/014
[10]	WANG Dou , GAO Jie . Single-bunch emittance dilution in the perfect ILC main linac. Chinese Physics C, 2011, 35(3): 296-300. doi: 10.1088/1674-1137/35/3/016
[11]	SUN Ji-Lei , TANG Jing-Yu , JING Han-Tao . Courant-Snyder invariant density screening method for emittance analysis. Chinese Physics C, 2011, 35(11): 1059-1065. doi: 10.1088/1674-1137/35/11/015
[12]	YAN Hua-Hua , MA Qing-Shan , ZHANG Jun . Mott-Hubbard transition of bosons in optical lattices with two-body interactions. Chinese Physics C, 2011, 35(6): 530-534. doi: 10.1088/1674-1137/35/6/003
[13]	WANG Dou , QIN Qing , GAO Jie . Study of lower emittance dedicated synchrotron radiation mode for the BEPCⅡ. Chinese Physics C, 2010, 34(11): 1762-1767. doi: 10.1088/1674-1137/34/11/019
[14]	LIU Sheng-Guang , Masafumi Fukuda , Sakae Araki , Nobuhiro Terunuma , Junji Urakawa . Emittance measurement & optimization for the photocathode RF gun with laser profile shaping. Chinese Physics C, 2010, 34(5): 584-588. doi: 10.1088/1674-1137/34/5/014
[15]	ZHONG Jun-Qing , AN Shi-Zhong , YAO Hong-Juan , ZHANG Tian-Jue , BI Yuan-Jie . Influence of radial magnetic field on emittance in the median plane at CYCIAE-100. Chinese Physics C, 2009, 33(S2): 53-55. doi: 10.1088/1674-1137/33/S2/014
[16]	ZHANG Wen-Zhi , TIAN Shun-Qiang , ZHANG Man-Zhou , HOU Jie , LI Hao-Hu , LIU Gui-Min , ZHAO Zhen-Tang . Design and first commissioning of a new mode with lower emittance in the SSRF storage ring. Chinese Physics C, 2009, 33(5): 397-400. doi: 10.1088/1674-1137/33/5/016
[17]	TANG Chuan-Xiang , LIU Xiao-Han . Ultra-low emittance X-band photocathode RF gun. Chinese Physics C, 2009, 33(S2): 102-104. doi: 10.1088/1674-1137/33/S2/026
[18]	YIN Xue-Jun , FU Shi-Nian , PENG Jun . Emittance coupling driven by space charge in the CSNS linac. Chinese Physics C, 2009, 33(9): 811-814. doi: 10.1088/1674-1137/33/9/020
[19]	GAO Jie . Bunch transverse emittance increase in electron storage rings. Chinese Physics C, 2009, 33(7): 572-576. doi: 10.1088/1674-1137/33/7/013
[20]	OUYANG Hua-Fu , ZHANG Hua-Shun . Design of magnet and control of the beam emittance for Penning H^－ ion source. Chinese Physics C, 2008, 32(8): 668-672. doi: 10.1088/1674-1137/32/8/017

Access

Get Citation

XU Gang and PENG Yue-Mei. Minimum emittance in TBA and MBA lattices[J]. Chinese Physics C, 2015, 39(3): 037005. doi: 10.1088/1674-1137/39/3/037005

XU Gang and PENG Yue-Mei. Minimum emittance in TBA and MBA lattices[J]. Chinese Physics C, 2015, 39(3): 037005. doi: 10.1088/1674-1137/39/3/037005 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2014-05-01
Revised: 1900-01-01

Article Metric

Article Views(1486)
PDF Downloads(180)
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

Minimum emittance in TBA and MBA lattices

XU Gang
PENG Yue-Mei

Received Date: 2014-05-01
Accepted Date: 1900-01-01
Available Online: 2015-03-05

Abstract: For reaching a small emittance in a modern light source, triple bend achromats (TBA), theoretical minimum emittance (TME) and even multiple bend achromats (MBA) have been considered. This paper derived the necessary condition for achieving minimum emittance in TBA and MBA theoretically, where the bending angle of inner dipoles has a factor of 3^1/3 bigger than that of the outer dipoles. Here, we also calculated the conditions attaining the minimum emittance of TBA related to phase advance in some special cases with a pure mathematics method. These results may give some directions on lattice design.