Disintegrations Per Second

См. также в других словарях:

• Counts per minute — This article is about radioactivity. For other uses of abbreviation, see CPM (disambiguation). Counts per minute (cpm) is a measure of radioactivity. It is the number of atoms in a given quantity of radioactive material that are detected to have… …   Wikipedia

• curie — A unit of measurement of radioactivity, 3.70 ×1010 disintegrations per second; formerly defined as the radioactivity of the amount of radon in equilibrium with 1 gm. of radium; superseded by the S.I. unit, the becquerel (1 disintegration per… …   Medical dictionary

• Becquerel — Bq redirects here. For other uses, see BQ and Becquerel (disambiguation). The becquerel (symbol Bq) (pronounced: be kə rel) is the SI derived unit of radioactivity. One Bq is defined as the activity of a quantity of radioactive material in which… …   Wikipedia

• rutherford — Obsolete term for a unit of radioactivity, representing that quantity of radioactive material in which a million disintegrations are taking place per second; 37 r. = 1 mCi. See Becquerel. [Ernest R., British physicist and Nobel laureate,… …   Medical dictionary

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• Conversion of units — is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Contents 1 Techniques 1.1 Process 1.2 Multiplication factors …   Wikipedia

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• Curie — For other uses, see Curie (disambiguation). The curie (symbol Ci) is a unit of radioactivity, defined as 1 Ci = 3.7 × 1010 decays per second. This is roughly the activity of 1 gram of the radium isotope 226Ra, a substance studied by the… …   Wikipedia

• half-life — /haf luyf , hahf /, n., pl. half lives / luyvz /. 1. Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate. 2. Pharm. the time required for the activity of a substance taken into the body… …   Universalium

• curie — noun Etymology: Marie & Pierre Curie Date: 1910 1. a unit quantity of any radioactive nuclide in which 3.7 × 1010 disintegrations occur per second 2. a unit of radioactivity equal to 3.7 × 1010 disintegrations per second …   New Collegiate Dictionary

• activity — /ak tiv i tee/, n., pl. activities. 1. the state or quality of being active: There was not much activity in the stock market today. He doesn t have enough physical activity in his life. 2. a specific deed, action, function, or sphere of action:… …   Universalium