Laser-driven high-energy ion generation for a compact cancer therapy accelerator

European Conference on Laser Interaction with Matter Pub Date : 2003-12-18 DOI:10.1117/12.537374

K. Matsukado, H. Daido, Zhong Li, A. Fukumi, Y. Hayashi, S. Orimo, S. V. Bulanov, M. Uesaka, K. Yoshii, Takahiro Watanabe, T. Hosokai, K. Kinoshita, A. Zhidkov, A. Noda, Y. Iwashita, T. Shirai, S. Nakamura, A. Yamazaki, A. Morita, T. Takeuchi, A. Ogata, Y. Wada, T. Kubota, F. Soga, S. Yamada, Esirkepov Timur, K. Nishihara

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引用次数: 1

Abstract

We started a project to develop a very compact accelerator for cancer therapy. To reduce the size of the system, we adopted a laser plasma ion source using a compact ultra-high intensity laser. We have performed ion generation experiments in which the laser parameters were as follows: The wave length and the pulse duration were 800 nm and 50 fs, respectively. Peak power was 4 - 5TW. The laser pulse with normal incidence angle to the target was focused onto the target with 15 μm diameter giving power density of 3 - 4x1018W/cm2. The thin foil metals (Ti, Al) and plastics (polypropylene, polyethylene) with the thicknesses of 4 - 100 μm were used for targets. We found that the angular distribution of ions with an energy of ~0.1 MeV had a significant peak in the backward and forward in respect to the laser incidence direction.

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用于紧凑型癌症治疗加速器的激光驱动高能离子发生器

我们开始了一个项目，开发一种用于癌症治疗的非常紧凑的加速器。为了减小系统的尺寸，我们采用了使用紧凑的超高强度激光器的激光等离子体离子源。我们进行了离子生成实验，激光参数为:波长为800 nm，脉冲持续时间为50 fs。峰值功率为4 ~ 5TW。将与目标正入射角的激光脉冲聚焦到直径为15 μm的目标上，功率密度为3 - 4 × 1018w /cm2。靶材采用厚度为4 ~ 100 μm的薄膜金属(Ti、Al)和塑料(聚丙烯、聚乙烯)。我们发现，能量为~0.1 MeV的离子的角分布在激光入射方向的前后方向上都有一个显著的峰。

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European Conference on Laser Interaction with Matter

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