Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme
The combination of reversible angular dispersion-induced microbunching (ADM) and the rapid damping storage ring provides a storage-ring-based light source with the capability to produce longitudinal coherent radiation with a high repetition rate. This paper presents a prototype design for a test fac...
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| Format: | Article |
| Language: | English |
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International Union of Crystallography
2025-01-01
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| Series: | Journal of Synchrotron Radiation |
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| Online Access: | https://journals.iucr.org/paper?S1600577524010907 |
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| author | Changliang Li Bocheng Jiang Chao Feng Qiang Gu Zhenghe Bai Weishi Wan Qinglei Zhang Kun Wang |
| author_facet | Changliang Li Bocheng Jiang Chao Feng Qiang Gu Zhenghe Bai Weishi Wan Qinglei Zhang Kun Wang |
| author_sort | Changliang Li |
| collection | DOAJ |
| description | The combination of reversible angular dispersion-induced microbunching (ADM) and the rapid damping storage ring provides a storage-ring-based light source with the capability to produce longitudinal coherent radiation with a high repetition rate. This paper presents a prototype design for a test facility based on the study by Jiang et al. [Sci. Rep. (2022), 12, 3325]. The modulation–demodulation section is inserted into a long straight section of the storage ring instead of a bypass line, which poses great challenges for the optimization of the nonlinear dynamics of the storage ring. However, this design avoids the challenging injection and extraction system connecting to the bypass line. To utilize mature laser technology and reduce the difficulty of the reversible ADM lattice design, we use a long-wavelength 1030 nm seed laser. In the simulation, we achieved 20th harmonic radiation with a bunching factor of about 7.2%. The growth rate of vertical emittance and energy spread of the electron beam for a single pass are about 11% and 0.02%, respectively. When the energy of the electron beam is 800 MeV and two sets of damping wigglers are employed, the damping time in the vertical plane is reduced to 8.31 ms. This results in a 438 kHz repetition rate of the coherent radiation at the new equilibrium state. |
| format | Article |
| id | doaj-art-03ea45875a64483ea8b00993034e346f |
| institution | OA Journals |
| issn | 1600-5775 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Journal of Synchrotron Radiation |
| spelling | doaj-art-03ea45875a64483ea8b00993034e346f2025-08-20T01:47:55ZengInternational Union of CrystallographyJournal of Synchrotron Radiation1600-57752025-01-01321828910.1107/S1600577524010907yi5160Toward a storage ring coherent light source based on an angular dispersion-induced microbunching schemeChangliang Li0Bocheng Jiang1Chao Feng2Qiang Gu3Zhenghe Bai4Weishi Wan5Qinglei Zhang6Kun Wang7Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of ChinaLaboratory for Ultrafast Transient Facility, Chongqing University, Chongqing 401331, People's Republic of ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of ChinaNational Synchrotron Radiation Laboratory, USTC, Hefei 230029, People's Republic of ChinaSchool of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, People's Republic of ChinaThe combination of reversible angular dispersion-induced microbunching (ADM) and the rapid damping storage ring provides a storage-ring-based light source with the capability to produce longitudinal coherent radiation with a high repetition rate. This paper presents a prototype design for a test facility based on the study by Jiang et al. [Sci. Rep. (2022), 12, 3325]. The modulation–demodulation section is inserted into a long straight section of the storage ring instead of a bypass line, which poses great challenges for the optimization of the nonlinear dynamics of the storage ring. However, this design avoids the challenging injection and extraction system connecting to the bypass line. To utilize mature laser technology and reduce the difficulty of the reversible ADM lattice design, we use a long-wavelength 1030 nm seed laser. In the simulation, we achieved 20th harmonic radiation with a bunching factor of about 7.2%. The growth rate of vertical emittance and energy spread of the electron beam for a single pass are about 11% and 0.02%, respectively. When the energy of the electron beam is 800 MeV and two sets of damping wigglers are employed, the damping time in the vertical plane is reduced to 8.31 ms. This results in a 438 kHz repetition rate of the coherent radiation at the new equilibrium state.https://journals.iucr.org/paper?S1600577524010907storage ringsangular dispersion modulationdispersion-induced microbunchingmodulation–demodulation sectioncoherent radiationdamping wigglers |
| spellingShingle | Changliang Li Bocheng Jiang Chao Feng Qiang Gu Zhenghe Bai Weishi Wan Qinglei Zhang Kun Wang Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme Journal of Synchrotron Radiation storage rings angular dispersion modulation dispersion-induced microbunching modulation–demodulation section coherent radiation damping wigglers |
| title | Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme |
| title_full | Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme |
| title_fullStr | Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme |
| title_full_unstemmed | Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme |
| title_short | Toward a storage ring coherent light source based on an angular dispersion-induced microbunching scheme |
| title_sort | toward a storage ring coherent light source based on an angular dispersion induced microbunching scheme |
| topic | storage rings angular dispersion modulation dispersion-induced microbunching modulation–demodulation section coherent radiation damping wigglers |
| url | https://journals.iucr.org/paper?S1600577524010907 |
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