Lattice optimization for the HLS-Ⅱ storage ring
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 th...
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| Veröffentlicht in: | Chinese physics C 2013, Vol.37 (1), p.100-106 |
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| creator | Bai, Zheng-He Wang, Lin Jia, Qi-Ka Li, Wei-Min |
| description | 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. |
| doi_str_mv | 10.1088/1674-1137/37/1/017001 |
| format | Article |
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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.</description><identifier>ISSN: 1674-1137</identifier><identifier>EISSN: 0254-3052</identifier><identifier>DOI: 10.1088/1674-1137/37/1/017001</identifier><language>eng</language><subject>Emittance ; HLS储存环 ; Lattice vibration ; Lattices ; Mathematical analysis ; Mathematical models ; Optimization ; Reconstruction ; Storage rings (particle accelerators) ; Strength ; 优化 ; 光学功能 ; 发射强度 ; 格子 ; 消色差 ; 统计学分析 ; 非线性晶格</subject><ispartof>Chinese physics C, 2013, Vol.37 (1), p.100-106</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c345t-2e31d6be511cf0cf7b450b2ec28c32029d18d03911431a612f20da64483e91043</citedby><cites>FETCH-LOGICAL-c345t-2e31d6be511cf0cf7b450b2ec28c32029d18d03911431a612f20da64483e91043</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/92043A/92043A.jpg</thumbnail><link.rule.ids>314,780,784,4022,27922,27923,27924</link.rule.ids></links><search><creatorcontrib>Bai, Zheng-He</creatorcontrib><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Jia, Qi-Ka</creatorcontrib><creatorcontrib>Li, Wei-Min</creatorcontrib><title>Lattice optimization for the HLS-Ⅱ storage ring</title><title>Chinese physics C</title><addtitle>Chinese Physica C</addtitle><description>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.</description><subject>Emittance</subject><subject>HLS储存环</subject><subject>Lattice vibration</subject><subject>Lattices</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Optimization</subject><subject>Reconstruction</subject><subject>Storage rings (particle accelerators)</subject><subject>Strength</subject><subject>优化</subject><subject>光学功能</subject><subject>发射强度</subject><subject>格子</subject><subject>消色差</subject><subject>统计学分析</subject><subject>非线性晶格</subject><issn>1674-1137</issn><issn>0254-3052</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqFkM1KAzEQgIMoWKuPIKw3L-vO5Geze5SiVljwoJ5Dms22kXbTJulB7z6Ir-aTuKWlV2FgLt83MB8h1wh3CFVVYCl5jshkMQwWgBIAT8gIqOA5A0FPyejInJOLGD8ASj6oI4KNTskZm_l1civ3pZPzfdb5kKWFzabNa_77_ZPF5IOe2yy4fn5Jzjq9jPbqsMfk_fHhbTLNm5en58l9kxvGRcqpZdiWMysQTQemkzMuYEatoZVhFGjdYtUCqxE5Q10i7Si0uuS8YrZG4GxMbvd318FvtjYmtXLR2OVS99Zvoxq-RJASBf6PclbLCgSXAyr2qAk-xmA7tQ5upcOnQlC7mmpXSu1KqWFQ7WsO3s3BW_h-vhk6HEXOJaWiBPYHO2pwtg</recordid><startdate>2013</startdate><enddate>2013</enddate><creator>Bai, Zheng-He</creator><creator>Wang, Lin</creator><creator>Jia, Qi-Ka</creator><creator>Li, Wei-Min</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>2013</creationdate><title>Lattice optimization for the HLS-Ⅱ storage ring</title><author>Bai, Zheng-He ; Wang, Lin ; Jia, Qi-Ka ; Li, Wei-Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c345t-2e31d6be511cf0cf7b450b2ec28c32029d18d03911431a612f20da64483e91043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Emittance</topic><topic>HLS储存环</topic><topic>Lattice vibration</topic><topic>Lattices</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Optimization</topic><topic>Reconstruction</topic><topic>Storage rings (particle accelerators)</topic><topic>Strength</topic><topic>优化</topic><topic>光学功能</topic><topic>发射强度</topic><topic>格子</topic><topic>消色差</topic><topic>统计学分析</topic><topic>非线性晶格</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bai, Zheng-He</creatorcontrib><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Jia, Qi-Ka</creatorcontrib><creatorcontrib>Li, Wei-Min</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Chinese physics C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bai, Zheng-He</au><au>Wang, Lin</au><au>Jia, Qi-Ka</au><au>Li, Wei-Min</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lattice optimization for the HLS-Ⅱ storage ring</atitle><jtitle>Chinese physics C</jtitle><addtitle>Chinese Physica C</addtitle><date>2013</date><risdate>2013</risdate><volume>37</volume><issue>1</issue><spage>100</spage><epage>106</epage><pages>100-106</pages><issn>1674-1137</issn><eissn>0254-3052</eissn><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. 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| ispartof | Chinese physics C, 2013, Vol.37 (1), p.100-106 |
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| language | eng |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link; Alma/SFX Local Collection |
| subjects | Emittance HLS储存环 Lattice vibration Lattices Mathematical analysis Mathematical models Optimization Reconstruction Storage rings (particle accelerators) Strength 优化 光学功能 发射强度 格子 消色差 统计学分析 非线性晶格 |
| title | Lattice optimization for the HLS-Ⅱ storage ring |
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