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LASER ION SOURCE, ION ACCELERATOR, AND HEAVY PARTICLE BEAM MEDICAL TREATMENT DEVICE
LASER ION SOURCE, ION ACCELERATOR, AND HEAVY PARTICLE BEAM MEDICAL TREATMENT DEVICE
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机译:激光离子源,离子加速器和重粒子束医学治疗仪
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摘要
PROBLEM TO BE SOLVED: To confirm soundness of a laser ion source.SOLUTION: A laser ion source according to an embodiment includes: a vacuum container 1 which is evacuated to produce vacuum and has an incident window 1a formed therein for accepting incoming laser light L; a target 2 which is arranged in the vacuum container 1 and generates ions when being irradiated with the laser light L; a transport tube 7 which serves as an ion-beam extraction part for extracting an ion beam to the outside of the vacuum container 1 by electrostatically bringing out ions from the vacuum container 1; and an ion beam current measurement instrument 8 for measuring an ion beam current value after being extracted to the outside of the vacuum container.SELECTED DRAWING: Figure 4
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