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arXiv 2008.08674physics.acc-ph
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氦束粒子治疗设备

Helium beam particle therapy facility

Mariusz Sapinski

摘要:

由于其精确性和有限的副作用,癌症的粒子治疗越来越受欢迎。全世界用质子和轻离子治疗的患者人数达到15万人。目前有80多个设施提供这种治疗,几十个新的设施正在建设中。大多数是回旋加速器设施,提供质子束,只有几个是同步加速器设施,提供两者:质子和碳离子束。碳离子的优点是它们在破坏癌细胞方面的更高效率、布拉格峰的更局部化形状和体内更小的光束散射。几个可以提供碳的大型中心已经用包括氦在内的其他离子进行了实验。氦相对于质子的优势在于,由于体内α粒子的散射较低,因此治疗精度显著提高,这对儿科患者尤其重要。一个治疗光束仅限于氦的设施将比碳基设施更小更便宜。我们在这里讨论这个选项。

英文摘要:

Due to its precision and limited side effects, the particle therapy of cancer is gaining popularity. The number of patients treated with protons and light ions reached 150,000 worldwide. There are currently more than 80 facilities, which offer this treatment and several dozen of new ones are in construction. Mostly they are cyclotron-based facilities, which provide proton beams, and only several are synchrotron-based facilities that provide both: proton and carbon-ion beams. The advantage of carbon ions is their higher efficiency in destroying the cancer cells, more localized shape of the Bragg peak and smaller beam scattering in the body. Several of the large centers, which can provide carbon, have experimented with other ions including helium. The advantage of helium over protons is significantly larger precision of the treatment due to lower scattering of alpha particles in the body, what is especially important for pediatric patients. A facility with therapeutic beams limited to helium, would be smaller and cheaper than carbon-based facility. Here we discuss this option.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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