The research of ultra-compact Cs fountain clock was lauched in 2008. By the end of 2009, the prelimi...

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Ultra-compact Cs Fountain Clock

The research of ultra-compact Cs fountain clock was lauched in 2008. By the end of 2009, the preliminary equipment of the clock has been completed with a frequency stability of better than 5.2×10-15 in one day. Works to improve the uncertainty and reliability of the ultra-compact Cs fountain clock is being carried on.