英语词汇“curiegram”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

1. Originally: a quantity of radon (radon 222, radium emanation) in radioactive equilibrium with one gramme of radium. Later extended to denote an equivalent quantity of any of the decay products of radium (also curiegram). Later, a unit of radioactivity equal to 3·7 × 10¹⁰ disintegrations per second, frequently used loosely as a unit of quantity of any radioactive substance in which there is this degree of radioactivity. Cf. Becquerel n. 2.

ΘΚΠ

the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > quantity of radon or radioactive substance

curie1910

the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > units of radioactivity

megacurie1947

curie1954

pico-curie1960

Becquerel1975

Bq1975

1910 Rutherford in Nature 6 Oct. 430/2 It was suggested that the name Curie, in honour of the late Prof. Curie, should..be employed for a quantity of radium or of the emanation... The name Curie should be used as a new unit to express the quantity or mass of radium emanation in equilibrium with one gram of radium (element).

1913 E. Rutherford Radioactive Subst. 479 At the Radiology Congress in Brussels in 1910, it was decided to call this equilibrium quantity a ‘curie’, in honour of M. and Mme Curie... It is convenient to use the term millicurie as a smaller unit.

1929 Encycl. Brit. I. 875/2 Curiegram,..the quantity of radium emanation in equilibrium with one gram of radium. This unit is subdivided into the millicuriegram and the microcuriegram.

1931 M. Curie et al. Rep. Internat. Radium-Standards Committee in Rev. Mod. Physics III. 432 It is recommended that the use of the term curie be extended to include the equilibrium quantity of any decay product of radium.

1954 Brit. Jrnl. Radiol. 27 243/2 Amount of radioactive material shall be expressed in curies (c). The accepted definition of the curie is:—The curie is a unit of radioactivity defined as the quantity of any radioactive nuclide in which the number of disintegrations per second is 3·700 × 10¹⁰. With this definition the curie is independent of the disintegration rate of radium.

1955 Sci. Amer. July 50/3 The most powerful modern atomic bomb should release no more than 10 billion curies.

1963 H. G. Jerrard & D. B. McNeill Dict. Sci. Units 37 The curie is too large for normal laboratory work where the radioactivity is generally of the order of millicuries.

1968 Radiation Quantities & Units (Internat. Commission on Radiation Units & Measurements) 6 In accordance with the former definition of the curie as a unit of quantity of a radioactive nuclide, it was customary and correct to say: ‘Y curies of ³²P were administered...’ It is still permissible to make such statements rather than use the longer form which is now correct: ‘A quantity of ³²P was administered whose activity was Y curies.’

1970 Sci. Jrnl. Aug. 43/1 A single 1000 MWe reactor will therefore accumulate in its fuel many thousands of millions of curies of fission products.

单词	curiegram
释义	> as lemmas curiegram 1. Originally: a quantity of radon (radon 222, radium emanation) in radioactive equilibrium with one gramme of radium. Later extended to denote an equivalent quantity of any of the decay products of radium (also curiegram). Later, a unit of radioactivity equal to 3·7 × 10¹⁰ disintegrations per second, frequently used loosely as a unit of quantity of any radioactive substance in which there is this degree of radioactivity. Cf. Becquerel n. 2. ΘΚΠ the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > quantity of radon or radioactive substance curie1910 the world > matter > physics > atomic nucleus > measurement of ionizing radiation > [noun] > units of radioactivity megacurie1947 curie1954 pico-curie1960 Becquerel1975 Bq1975 1910 Rutherford in Nature 6 Oct. 430/2 It was suggested that the name Curie, in honour of the late Prof. Curie, should..be employed for a quantity of radium or of the emanation... The name Curie should be used as a new unit to express the quantity or mass of radium emanation in equilibrium with one gram of radium (element). 1913 E. Rutherford Radioactive Subst. 479 At the Radiology Congress in Brussels in 1910, it was decided to call this equilibrium quantity a ‘curie’, in honour of M. and Mme Curie... It is convenient to use the term millicurie as a smaller unit. 1929 Encycl. Brit. I. 875/2 Curiegram,..the quantity of radium emanation in equilibrium with one gram of radium. This unit is subdivided into the millicuriegram and the microcuriegram. 1931 M. Curie et al. Rep. Internat. Radium-Standards Committee in Rev. Mod. Physics III. 432 It is recommended that the use of the term curie be extended to include the equilibrium quantity of any decay product of radium. 1954 Brit. Jrnl. Radiol. 27 243/2 Amount of radioactive material shall be expressed in curies (c). The accepted definition of the curie is:—The curie is a unit of radioactivity defined as the quantity of any radioactive nuclide in which the number of disintegrations per second is 3·700 × 10¹⁰. With this definition the curie is independent of the disintegration rate of radium. 1955 Sci. Amer. July 50/3 The most powerful modern atomic bomb should release no more than 10 billion curies. 1963 H. G. Jerrard & D. B. McNeill Dict. Sci. Units 37 The curie is too large for normal laboratory work where the radioactivity is generally of the order of millicuries. 1968 Radiation Quantities & Units (Internat. Commission on Radiation Units & Measurements) 6 In accordance with the former definition of the curie as a unit of quantity of a radioactive nuclide, it was customary and correct to say: ‘Y curies of ³²P were administered...’ It is still permissible to make such statements rather than use the longer form which is now correct: ‘A quantity of ³²P was administered whose activity was Y curies.’ 1970 Sci. Jrnl. Aug. 43/1 A single 1000 MWe reactor will therefore accumulate in its fuel many thousands of millions of curies of fission products. extracted from curien. < as lemmas
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