Entry from British & World English dictionary
An atomic clock that uses the vibrations of caesium atoms as a time standard.
- The idea behind the atomic clock (or the caesium clock) is to bombard cesium with microwaves of close to 9,192,631,770 cycles per second.
- Thus I run an experiment which performs measurements on the cesium clock which gives me a basic calibration upon which all clocks can be run.
- In a cesium clock, it has been determined that one second is equal to 9,192,631,770 oscillations or transitions.
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