Gray (Gy): A measure of the absorbed dose—that is, how much radiation energy is absorbed by the body. One gray equals 1 joule of radiation energy per kilogram of matter. FLASH delivers a single dose of 40 Gy or more in a fraction of a second. Conventional radiation therapy, by contrast, may deliver a total dose of 40 to 80 Gy but over the course of several weeks.
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第三十五条 从事国际航行船舶的中国籍船员,应当依法持有中华人民共和国海事管理机构颁发的海员证和有关证书。,更多细节参见新收录的资料
한국 성인 4명 중 1명만 한다…오래 살려면 ‘이 운동’부터[노화설계]