开口磁环的周期聚焦系统仿真分析与实验
Simulation analysis and test of periodic focusing system with opening magnetic ring
电子科技大学 电真空国家重点实验室，成都 610054
图 & 表
图 1. Magnetic ring models
Fig. 1. Magnetic ring models
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图 2. Single ring central axis magnetic field distribution
Fig. 2. Single ring central axis magnetic field distribution
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图 3. Axial magnetic field at the position of channel radius
Fig. 3. Axial magnetic field at the position of channel radius
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图 4. Wave port position structure
Fig. 4. Wave port position structure
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图 5. Structure of PPM
Fig. 5. Structure of PPM
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图 6. Magnetic field without compensation
Fig. 6. Magnetic field without compensation
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图 7. Magnetic field with compensation
Fig. 7. Magnetic field with compensation
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图 8. Model of electronic optical system
Fig. 8. Model of electronic optical system
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图 9. Beam trajectories
Fig. 9. Beam trajectories
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图 10. Open magnetic ring patterns
Fig. 10. Open magnetic ring patterns
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图 11. E-band traveling wave tube
Fig. 11. E-band traveling wave tube
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表 1带极靴的单个磁环实验结果
Table1. Experimental results of single magnetic ring with pole shoes
| single magnetic | No.1 | No.2 | No.3 | No.4 (double-open magnetic ring-1) | No.5 | No.6 | No.7 | | Note: No. 1～3 and 5～7 are normal magnetic rings. | | axial magnetic field, input end/T | 0.377 6 | 0.243 6 | 0.398 5 | 0.267 5 | 0.382 7 | 0.306 5 | 0.370 5 | | axial magnetic field, output end/T | 0.361 3 | 0.341 2 | 0.406 1 | 0.296 7 | 0.402 0 | 0.288 0 | 0.398 7 |
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表 2带极靴的单个磁环实验结果
Table2. Experimental results of single magnetic ring with pole shoes
| magnetic ring | No.1 | No.2 | No.3 | No.4 (double-open magnetic ring-2) | No.5 | No.6 | No.7 | | Note: No. 1～3 and 5～7 are normal magnetic rings. | | axial magnetic field, input end/T | 0.377 6 | 0.243 6 | 0.398 5 | 0.281 4 | 0.382 7 | 0.306 5 | 0.370 5 | | axial magnetic field, output end/T | 0.361 3 | 0.341 2 | 0.406 1 | 0.312 8 | 0.402 0 | 0.288 0 | 0.398 7 |
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表 3磁系统轴向磁场实验结果
Table3. Experimental results of axial magnetic field in magnetic system
| magnetic ring | No.1 | No.2 | No.3 | No.4 (double-open magnetic ring-1) | No.5 | No.6 | No.7 | | Note: No. 1～3 and 5～7 are normal magnetic rings. | | axial magnetic field, input end/T | 0.350 0 | 0.380 0 | 0.358 0 | 0.384 6 | 0.373 4 | 0.396 4 | 0.412 4 | | axial magnetic field, output end/T | 0.4092 | 0.4255 | 0.3812 | 0.3991 | 0.3564 | 0.4212 | 0.3577 |
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表 4磁系统轴向磁场实验结果
Table4. Experimental results of axial magnetic field in magnetic system
| magnetic ring | No.1 | No.2 | No.3 | No.4 (double-open magnetic ring-2) | No.5 | No.6 | No.7 | | Note: No. 1～3 and 5～7 are normal magnetic rings. | | axial magnetic field, input end/T | 0.351 6 | 0.382 8 | 0.362 3 | 0.391 3 | 0.379 4 | 0.399 1 | 0.413 8 | | axial magnetic field, output end/T | 0.410 1 | 0.428 1 | 0.389 8 | 0.407 7 | 0.371 2 | 0.428 5 | 0.358 0 |
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郭祖根, 阳志新, 姬如静, 韩萍, 张瑞峰, 王琪, 王战亮, 宫玉彬, 巩华荣. 开口磁环的周期聚焦系统仿真分析与实验[J]. 强激光与粒子束, 2019, 31(12): 124001. Zugen Guo, Zhixin Yang, Rujing Ji, Ping Han, Ruifeng Zhang, Qi Wang, Zhanliang Wang, Yubin Gong, Huarong Gong. Simulation analysis and test of periodic focusing system with opening magnetic ring[J]. High Power Laser and Particle Beams, 2019, 31(12): 124001.
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