| 单词 | cobaltsixty |
| 释义 | > as lemmascobalt-sixty cobalt bomb n. (a) a container storing radioactive cobalt-sixty (60Co) used in the treatment of cancer; (b) a hydrogen bomb enclosed in a shell of cobalt which, if exploded, disperses radioactive cobalt dust. ΘΚΠ the world > health and disease > healing > medical appliances or equipment > equipment for radiation treatment > [noun] Kromayer lamp1911 radium needle1915 plaque1919 cobalt bomb1954 society > armed hostility > military equipment > weapon > explosive device > [noun] > bomb > fusion or hydrogen hydrogen bomb1947 fusion bomb1950 superbomb1950 super1951 cobalt bomb1954 1954 Times 8 Apr. 5/4 At the time Einstein spoke the cobalt bomb, like the hydrogen bomb, was merely a theoretical possibility, but the successful tests of the hydrogen bomb..had brought this theory into the realm of fact. 1958 L. Pauling No More War! vii. 154 The cobalt bomb is a hydrogen bomb or superbomb with a shell of perhaps 1000 pounds of the common metal cobalt about it. cobalt-sixty cobalt-sixty n. see cobalt bomb n. (a). ΚΠ 1946 Atomic Bomb (Atomic Scientists of Chicago) vii. 36 When bombarded with neutrons, another form of this element is made, called cobalt-60. 1949 Atomic Energy & Life Sci. 90 Sponsored research, and provided radioisotopes, to determine the efficiency of radiocobalt (cobalt 60) as a substitute for radium in the treatment of cancer. 1951 Sci. News Let. 24 Nov. 333 A cobalt 60 ‘bomb’ which promises life-saving treatment for more cancer patients was officially installed at the clinic of the Ontario Cancer Foundation, London, Ont. The cobalt bomb is a small portion of radioactive cobalt 60 enclosed in a heavy lead case. 1954 Ann. Reg. 1953 391 Additions to the powerful equipment for cancer treatment..included a cobalt 60 therapy unit producing X-rays of 3 million electron volts. < as lemmas |
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