Silin Wang, Junbiao Liu, Dazheng Wang, Pengfei Wang, Li Han. Optimization of Electron Beams for End-Window X-Ray Tubes with High Power[J]. Acta Optica Sinica, 2023, 43(22): 2234001
- Acta Optica Sinica
- Vol. 43, Issue 22, 2234001 (2023)
Fig. 1. Schematic of part X-ray tube structure
Fig. 2. Dimension sketch of simplified geometric model
Fig. 3. Potential distribution near the filament
Fig. 4. Beam current calculation result for different filament voltages
Fig. 5. Beam current calculation result for different filament heights
Fig. 6. Schematic of experimental principle
Fig. 7. Change of beam current with joule heat power
Fig. 8. Filament resistance calculation and measurement
Fig. 9. Relationship between temperature and joule thermal power
Fig. 10. Relationship between beam current and voltage when filament current is 12 A
Fig. 11. Effect of different filament potentials on beam current
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Table 1. Key initial parameters of geometric model
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Table 2. Result of thermal electron emission
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Table 3. Result of space charge limit emission
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