大俘获立体角的内靶超导螺线管表面muon 源的设计研究

肖冉; <SUB>; </SUB>刘艳芬; 许文贞; 谭宗泉; 成斌; 孔伟; <SUB>; </SUB>叶邦角

doi:10.11804/NuclPhysRev.31.04.468

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大俘获立体角的内靶超导螺线管表面muon 源的设计研究

肖冉, , 刘艳芬, 许文贞, 谭宗泉, 成斌, 孔伟, , 叶邦角

文章导航 > 原子核物理评论 > 2014 > 31(4): 468-474

肖冉, , 刘艳芬, 许文贞, 谭宗泉, 成斌, 孔伟, , 叶邦角. 大俘获立体角的内靶超导螺线管表面muon 源的设计研究[J]. 原子核物理评论, 2014, 31(4): 468-474. doi: 10.11804/NuclPhysRev.31.04.468

引用本文:

肖冉, _,刘艳芬, 许文贞, 谭宗泉, 成斌, 孔伟, _,叶邦角. 大俘获立体角的内靶超导螺线管表面muon 源的设计研究[J]. 原子核物理评论, 2014, 31(4): 468-474. doi: 10.11804/NuclPhysRev.31.04.468

XIAO Ran, LIU Yanfen, XU Wenzhen, TAN Zongquan, CHENG Bin, KONG Wei, YE Bangjiao, . Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids[J]. Nuclear Physics Review, 2014, 31(4): 468-474. doi: 10.11804/NuclPhysRev.31.04.468

Citation:

XIAO Ran, LIU Yanfen, XU Wenzhen, TAN Zongquan, CHENG Bin, KONG Wei, YE Bangjiao, . Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids[J]. Nuclear Physics Review, 2014, 31(4): 468-474. doi: 10.11804/NuclPhysRev.31.04.468

大俘获立体角的内靶超导螺线管表面muon 源的设计研究

doi: 10.11804/NuclPhysRev.31.04.468

核探测与核电子学国家重点实验室,中国科学技术大学,合肥 230026;
中国科学技术大学近代物理系,合肥 230026;
中国科学院上海应用物理研究所上海同步辐射光源,上海201204

Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids

State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China, Hefei, 230026;
Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China;

摘要: 高通量μ子源是国际上μ子科学研究的重要条件。在中国散裂中子源的高能质子应用区中，运用蒙特卡罗工具Geant4 和G4beamline 软件设计了使用内靶超导螺线管俘获高通量表面μ子的束线。与传统的分离靶和基于四极磁铁的收集系统相比，大孔径超导螺线管可以将收集效率提高两个量级。通过对不同靶材的粒子产率进行分析得出石墨是最佳靶材，然后比较俘获螺线管与束流的不同偏转角度下收集的表面的产率，提出了合理的较高产率的俘获和输运螺线管的设计方案，并与常规磁铁方案比较，最终在衰变螺线管端口的表面μ 通量高达10⁸/s。High intense muons are required by many applications in muon science. A large acceptance channel for surface muons was designed at China Spallation Neutron Source (CSNS) using a superconducting solenoid and an internal target, which can provide a large solid angle to collect intense surface muons. Compared to conventional separate target and collection system based on quadrupole magnets, a superconducting solenoid with large aperture can collect two orders larger of surface muons. This device was simulated by Geant4 and G4beamline. By analyzing the surface muon production ratio produced by the process that protons bombard four different materials, we chose the graphite as the target material. Then comparing the intensity of surface muon by different angles between the axis of the capture solenoids and the proton beam line, we proposed the capture and transport solenoid system with higher muon production ratio. Finally, the yield of surface muon at the exit of decay solenoid can be up to 10⁸/s.
- 高通量表面μ 源 /
- 超导螺线管 /
- 中国散裂中子源 /
- Geant4 /
- 束流光学
Abstract: High intense muons are required by many applications in muon science. A large acceptance channel for surface muons was designed at China Spallation Neutron Source (CSNS) using a superconducting solenoid and an internal target, which can provide a large solid angle to collect intense surface muons. Compared to conventional separate target and collection system based on quadrupole magnets, a superconducting solenoid with large aperture can collect two orders larger of surface muons. This device was simulated by Geant4 and G4beamline. By analyzing the surface muon production ratio produced by the process that protons bombard four different materials, we chose the graphite as the target material. Then comparing the intensity of surface muon by different angles between the axis of the capture solenoids and the proton beam line, we proposed the capture and transport solenoid system with higher muon production ratio. Finally, the yield of surface muon at the exit of decay solenoid can be up to 10⁸/s.
- high intense surface muon /
- superconducting solenoid /
- CSNS /
- GEANT4 /
- beam optics

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大俘获立体角的内靶超导螺线管表面muon 源的设计研究

doi: 10.11804/NuclPhysRev.31.04.468

核探测与核电子学国家重点实验室,中国科学技术大学,合肥 230026;

中国科学技术大学近代物理系,合肥 230026;

中国科学院上海应用物理研究所上海同步辐射光源,上海201204

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2014-12-20

关键词:

Geant4 /

摘要: 高通量μ子源是国际上μ子科学研究的重要条件。在中国散裂中子源的高能质子应用区中，运用蒙特卡罗工具Geant4 和G4beamline 软件设计了使用内靶超导螺线管俘获高通量表面μ子的束线。与传统的分离靶和基于四极磁铁的收集系统相比，大孔径超导螺线管可以将收集效率提高两个量级。通过对不同靶材的粒子产率进行分析得出石墨是最佳靶材，然后比较俘获螺线管与束流的不同偏转角度下收集的表面的产率，提出了合理的较高产率的俘获和输运螺线管的设计方案，并与常规磁铁方案比较，最终在衰变螺线管端口的表面μ 通量高达10⁸/s。High intense muons are required by many applications in muon science. A large acceptance channel for surface muons was designed at China Spallation Neutron Source (CSNS) using a superconducting solenoid and an internal target, which can provide a large solid angle to collect intense surface muons. Compared to conventional separate target and collection system based on quadrupole magnets, a superconducting solenoid with large aperture can collect two orders larger of surface muons. This device was simulated by Geant4 and G4beamline. By analyzing the surface muon production ratio produced by the process that protons bombard four different materials, we chose the graphite as the target material. Then comparing the intensity of surface muon by different angles between the axis of the capture solenoids and the proton beam line, we proposed the capture and transport solenoid system with higher muon production ratio. Finally, the yield of surface muon at the exit of decay solenoid can be up to 10⁸/s.

English Abstract

Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids

State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China, Hefei, 230026;

Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-12-20

Keywords:

Abstract: High intense muons are required by many applications in muon science. A large acceptance channel for surface muons was designed at China Spallation Neutron Source (CSNS) using a superconducting solenoid and an internal target, which can provide a large solid angle to collect intense surface muons. Compared to conventional separate target and collection system based on quadrupole magnets, a superconducting solenoid with large aperture can collect two orders larger of surface muons. This device was simulated by Geant4 and G4beamline. By analyzing the surface muon production ratio produced by the process that protons bombard four different materials, we chose the graphite as the target material. Then comparing the intensity of surface muon by different angles between the axis of the capture solenoids and the proton beam line, we proposed the capture and transport solenoid system with higher muon production ratio. Finally, the yield of surface muon at the exit of decay solenoid can be up to 10⁸/s.

引用本文:

Citation:

XIAO Ran, LIU Yanfen, XU Wenzhen, TAN Zongquan, CHENG Bin, KONG Wei, YE Bangjiao, . Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids[J]. Nuclear Physics Review, 2014, 31(4): 468-474. doi: 10.11804/NuclPhysRev.31.04.468

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大俘获立体角的内靶超导螺线管表面muon 源的设计研究

doi: 10.11804/NuclPhysRev.31.04.468

Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids

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大俘获立体角的内靶超导螺线管表面muon 源的设计研究

doi: 10.11804/NuclPhysRev.31.04.468

核探测与核电子学国家重点实验室,中国科学技术大学,合肥 230026; 中国科学技术大学近代物理系,合肥 230026; 中国科学院上海应用物理研究所上海同步辐射光源,上海201204

English Abstract

Study on a New Large Solid Angle Capture System for Surface Muon Using Superconducting Solenoids

State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China, Hefei, 230026; Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China;

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核探测与核电子学国家重点实验室,中国科学技术大学,合肥 230026;

中国科学技术大学近代物理系,合肥 230026;

中国科学院上海应用物理研究所上海同步辐射光源,上海201204

State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China, Hefei, 230026;

Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China;