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  2. Rubidium standard - Wikipedia

    en.wikipedia.org/wiki/Rubidium_standard

    Commercial rubidium clocks are less accurate than caesium atomic clocks, which serve as primary frequency standards, so a rubidium clock is usually used as a secondary frequency standard. Commercial rubidium frequency standards operate by disciplining a crystal oscillator to the rubidium hyperfine transition of 6.8 GHz (6 834 682 610.904 Hz).

  3. List of atomic clocks - Wikipedia

    en.wikipedia.org/wiki/List_of_atomic_clocks

    18 cesium atomic clocks and 4 hydrogen maser clocks Cs, H National Institute of Information and Communications Technology; Koganei, ...

  4. Atomic clock - Wikipedia

    en.wikipedia.org/wiki/Atomic_clock

    A radio clock is a clock that automatically synchronizes itself by means of radio time signals received by a radio receiver. Some manufacturers may label radio clocks as atomic clocks, [ 141 ] because the radio signals they receive originate from atomic clocks.

  5. Gilbert U-238 Atomic Energy Laboratory - Wikipedia

    en.wikipedia.org/wiki/Gilbert_U-238_Atomic...

    Gilbert cloud chamber, assembled An alternative view of kit contents. The lab contained a cloud chamber allowing the viewer to watch alpha particles traveling at 12,000 miles per second (19,000,000 m/s), a spinthariscope showing the results of radioactive disintegration on a fluorescent screen, and an electroscope measuring the radioactivity of different substances in the set.

  6. Rubidium atomic clock - Wikipedia

    en.wikipedia.org/?title=Rubidium_atomic_clock&...

    What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code

  7. Symmetricom - Wikipedia

    en.wikipedia.org/wiki/Symmetricom

    Products included hydrogen masers, rubidium and cesium atomic standards, temperature and oven controlled crystal oscillators, miniature and chip scale atomic clocks, network time servers, network sync management systems, cable timekeeping solutions, telecom synchronization supply units (SSUs), and timing test sets.