In the International System of Units, the derived unit of radioactive activity; the activity of a quantity of radioactive material in which one nucleus decays per second. Symbol: Bq
{i} family name; Antoine Henri Becquerel (1852-1908), French physicist, winner of the Nobel prize in Physics in 1903 (discovered radioactivity in uranium)
International System of Units unit of activity and equals that quantity of radioactive material in which one transformation (disintegration) occurs per second (1 Bq = 1 disintegration per second = 2 7 x 10-11 Ci)
{i} Bq, International System unit of radioactivity which equals the activity that results from the decay of one nucleus of radioactive or other nuclear transformation per second
a less unwieldy measurement of radioactivity than curies: one disintegration per second (d p s ) A picocurie is 0 037 d p s or 0 03 Bq The most common reporting unit outside the United States for radionuclide air concentrations is µBq/m3 (microbecquerels)
A unit of nuclear activity For example, 1 Bq represents the amount of radioactive substance that disintegrates in one second This unit replaces the curie
This is the unit of activity of a radioisotope It is the number of spontaneous nuclear transformations in one second The abbreviation is Bq (The old unit is the curie)
The SI unit of intrinsic radioactivity in a material One Bq measures one disintegration per second and is thus the activity of a quantity of radioactive material which averages one decay per second (In practice, GBq or TBq are the common units )
The unit of radioactive decay equal to 1 disintegration per second 37 billion becquerels is equal to 1 curie (Ci) There are 30,000 disintegrations per second taking place inside a household smoke detector