Electrons—long used to treat surface tumors and to generate X-rays—are light, nimble particles, far easier to control than protons or carbon ions. At low energies, they stop quickly in tissue, but new high-energy systems can drive electrons deeper. Now researchers are working on machines that combine multiple high-energy beams at different angles to let doctors sculpt radiation doses that match the tumor’s shape.
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This article originally appeared on Engadget at https://www.engadget.com/ai/canadian-government-says-openai-will-take-further-steps-to-strengthen-safety-protocols-164151618.html?src=rss
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为了更好推广、弘扬中医文化,郭毅在国内外进行了深入调研,发现许多外国人希望了解更多中医知识,但学习中存在一定语言障碍。