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Do Clocks Use Caesium?

Sophia Al-Mansoor • • 7 min read
Do Clocks Use Caesium?

The cesium clock

cesium clock
atomic clock, type of clock that uses certain resonance frequencies of atoms (usually cesium or rubidium) to keep time with extreme accuracy. The electronic components of atomic clocks are regulated by the frequency of the microwave electromagnetic radiation.
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is the most accurate type of clock yet developed. This device makes use of transitions between the spin states of the cesium nucleus and produces a frequency which is so regular that it has been adopted for establishing the time…

How is caesium used in atomic clocks?

Inside a cesium atomic clock, cesium atoms are funneled down a tube where they pass through radio waves . If this frequency is just right 9,192,631,770 cycles per second then the cesium atoms "resonate" and change their energy state. ... Other electronics in the atomic clock count this frequency.

Why is caesium used for time?

And that's where caesium comes in. It has a far higher resonant frequency even than quartz - 9,192,631,770 Hz, to be precise. This is one reason Essen used the element to make the first of the next generation of clocks - the "atomic" clocks.

Sophia Al-Mansoor
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Sophia Al-Mansoor

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.