Laser Acceleration of Ions for Radiation Therapy
Laser Acceleration of Ions for Radiation Therapy
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DOI：
10.1142/s1793626809000296
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发表时间：
2009-01-01
期刊：
影响因子：
--
通讯作者：
Yan, Xueqing
中科院分区：
文献类型：
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作者：
Tajima, Toshiki;Habs, Dietrich;Yan, Xueqing
离子束治疗癌症已被证明是一种成功的临床方法，提供与手术一样好的治愈效果和更高的生活质量。然而，离子束治疗装置庞大且密集，限制了其对公众利益的可用性。障碍之一是在传统技术的基础上使加速器更加紧凑。离子激光加速代表了一个快速发展的年轻领域。然而，主流的加速机制（称为目标法向鞘加速，TNSA）在一些关键要素上显示出严重的局限性。 Vie 现在见证了一种新的激光离子相干加速 (GAIL) 方案已被研究出来，以克服许多这些问题，并以更高的效率将质子和碳离子加速到高能量。新兴的缩放定律表明使用紧凑、经济高效的激光器实现离子治疗设施是可能的。此外，密集的粒子束可以允许使用更高的集体场，从而减小束流传输和转储系统的尺寸。尽管激光驱动的医疗设施的最终实现可能需要许多年的时间，但该领域正在快速发展，有许多概念创新和技术进步。
Ion beam therapy for cancer has proven to be a successful clinical approach, affording as good a cure as surgery and a higher quality of life. However, the ion beam therapy installation is large and ensive, limiting its availability for public benefit. One of the hurdles is to make the accelerator more compact on the basis of conventional technology. Laser acceleration of ions represents a rapidly developing young field. The prevailing acceleration mechanism (known as target normal sheath acceleration, TNSA), however, shows severe limitations in some key elements. Vie now witness that a new regime of coherent acceleration of ions by laser (GAIL) has been studied to overcome many of these problems and accelerate protons and carbon ions to high energies with higher efficiencies. Emerging scaling laws indicate possible realization of an ion therapy facility with compact, cost-efficient lasers. Furthermore, dense particle bunches may allow the use of much higher collective fields, reducing the size of beam transport and dump systems. Though ultimate realization of a laser -driven medical facility may take many years, the field is developing fast with many conceptual innovations and technical progress.