07版 - 第二场委员通道,创新创造活力满满(现场·委员通道)

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治水安邦  兴水利民,更多细节参见新收录的资料

钛动科技创始人李述昊是典型的“大厂出走者”,是1989年出生的山东人,2011年从天津大学电子科学与技术专业毕业后,在华为待了一年,便加入UC浏览器海外版,成为第一批做海外市场的“拓荒者”。2013年,他把UC浏览器做到印度市场第一名,干翻了谷歌——这段经历让他日后回忆起来,仍然带着少年意气。

They also needed an alternative to conventional X-rays. In a clinical linac, X-ray photons are produced by dumping high-energy electrons into a bremsstrahlung target, which is made of a material with a high atomic number, like tungsten or copper. The target slows the electrons, converting their kinetic energy into X-ray photons. It’s an inherently inefficient process that wastes most of the beam power as heat and makes it extremely difficult to reach the ultrahigh dose rates required for FLASH. High-energy electrons, by contrast, can be switched on and off within milliseconds. And because they have a charge and can be steered by magnets, electrons can be precisely guided to reach tumors deep within the body. (Researchers are also investigating protons and carbon ions; see the sidebar, “What’s the Best Particle for FLASH Therapy?”)

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