Matches in SemOpenAlex for { <https://semopenalex.org/work/W1982525534> ?p ?o ?g. }
- W1982525534 endingPage "79" @default.
- W1982525534 startingPage "65" @default.
- W1982525534 abstract "The uncertainty evaluation of CSF2, the second caesium fountain primary frequency standard at PTB, is presented. The fountain uses optical molasses to cool atoms down to 0.6 µK. The atoms are launched vertically in a moving optical molasses, and state selected in the |F = 3, mF = 0⟩ hyperfine ground state. During their ballistic flight, the atoms interact twice with a microwave field, thus completing the Ramsey interaction. With a launch height of 36.5 cm above the cavity centre, the central Ramsey fringe has a width of 0.9 Hz. About 3 × 104 atoms, 30% of the initial number in the |F = 3, mF = 0⟩ state, are detected after their second interaction with the microwave field. Stabilizing the microwave frequency to the centre of the central Ramsey fringe, a typical relative frequency instability of 2.5 × 10−13(τ/s)−1/2 is obtained. The CSF2 systematic uncertainty for realizing the SI second is estimated as 0.80 × 10−15. First comparisons with the fountain CSF1 at the Physikalisch-Technische Bundesanstalt and other fountain frequency standards worldwide demonstrate agreement within the stated uncertainties." @default.
- W1982525534 created "2016-06-24" @default.
- W1982525534 creator A5004284842 @default.
- W1982525534 creator A5005375275 @default.
- W1982525534 creator A5028091768 @default.
- W1982525534 creator A5035845349 @default.
- W1982525534 creator A5039923743 @default.
- W1982525534 creator A5068179629 @default.
- W1982525534 date "2009-12-22" @default.
- W1982525534 modified "2023-09-30" @default.
- W1982525534 title "Uncertainty evaluation of the caesium fountain clock PTB-CSF2" @default.
- W1982525534 cites W1480563975 @default.
- W1982525534 cites W1970081159 @default.
- W1982525534 cites W1976911012 @default.
- W1982525534 cites W1981205509 @default.
- W1982525534 cites W1988021958 @default.
- W1982525534 cites W1991531022 @default.
- W1982525534 cites W2004461229 @default.
- W1982525534 cites W2011356618 @default.
- W1982525534 cites W2013436628 @default.
- W1982525534 cites W2023184244 @default.
- W1982525534 cites W2035111818 @default.
- W1982525534 cites W2057478419 @default.
- W1982525534 cites W2057599068 @default.
- W1982525534 cites W2057605851 @default.
- W1982525534 cites W2065246266 @default.
- W1982525534 cites W2076960942 @default.
- W1982525534 cites W2085777758 @default.
- W1982525534 cites W2095666605 @default.
- W1982525534 cites W2100327126 @default.
- W1982525534 cites W2105825648 @default.
- W1982525534 cites W2112791888 @default.
- W1982525534 cites W2126289687 @default.
- W1982525534 cites W2132204557 @default.
- W1982525534 cites W2132308827 @default.
- W1982525534 cites W2141822540 @default.
- W1982525534 cites W2145272130 @default.
- W1982525534 cites W2148693407 @default.
- W1982525534 cites W2151869848 @default.
- W1982525534 cites W2155877274 @default.
- W1982525534 cites W2166301131 @default.
- W1982525534 cites W4206655417 @default.
- W1982525534 cites W4233429477 @default.
- W1982525534 cites W652219995 @default.
- W1982525534 doi "https://doi.org/10.1088/0026-1394/47/1/008" @default.
- W1982525534 hasPublicationYear "2009" @default.
- W1982525534 type Work @default.
- W1982525534 sameAs 1982525534 @default.
- W1982525534 citedByCount "109" @default.
- W1982525534 countsByYear W19825255342012 @default.
- W1982525534 countsByYear W19825255342013 @default.
- W1982525534 countsByYear W19825255342014 @default.
- W1982525534 countsByYear W19825255342015 @default.
- W1982525534 countsByYear W19825255342016 @default.
- W1982525534 countsByYear W19825255342017 @default.
- W1982525534 countsByYear W19825255342018 @default.
- W1982525534 countsByYear W19825255342019 @default.
- W1982525534 countsByYear W19825255342020 @default.
- W1982525534 countsByYear W19825255342021 @default.
- W1982525534 countsByYear W19825255342022 @default.
- W1982525534 countsByYear W19825255342023 @default.
- W1982525534 crossrefType "journal-article" @default.
- W1982525534 hasAuthorship W1982525534A5004284842 @default.
- W1982525534 hasAuthorship W1982525534A5005375275 @default.
- W1982525534 hasAuthorship W1982525534A5028091768 @default.
- W1982525534 hasAuthorship W1982525534A5035845349 @default.
- W1982525534 hasAuthorship W1982525534A5039923743 @default.
- W1982525534 hasAuthorship W1982525534A5068179629 @default.
- W1982525534 hasConcept C120665830 @default.
- W1982525534 hasConcept C121332964 @default.
- W1982525534 hasConcept C131221115 @default.
- W1982525534 hasConcept C131538251 @default.
- W1982525534 hasConcept C166957645 @default.
- W1982525534 hasConcept C184779094 @default.
- W1982525534 hasConcept C185544564 @default.
- W1982525534 hasConcept C196597080 @default.
- W1982525534 hasConcept C205649164 @default.
- W1982525534 hasConcept C2778379427 @default.
- W1982525534 hasConcept C44838205 @default.
- W1982525534 hasConcept C519659679 @default.
- W1982525534 hasConcept C62520636 @default.
- W1982525534 hasConceptScore W1982525534C120665830 @default.
- W1982525534 hasConceptScore W1982525534C121332964 @default.
- W1982525534 hasConceptScore W1982525534C131221115 @default.
- W1982525534 hasConceptScore W1982525534C131538251 @default.
- W1982525534 hasConceptScore W1982525534C166957645 @default.
- W1982525534 hasConceptScore W1982525534C184779094 @default.
- W1982525534 hasConceptScore W1982525534C185544564 @default.
- W1982525534 hasConceptScore W1982525534C196597080 @default.
- W1982525534 hasConceptScore W1982525534C205649164 @default.
- W1982525534 hasConceptScore W1982525534C2778379427 @default.
- W1982525534 hasConceptScore W1982525534C44838205 @default.
- W1982525534 hasConceptScore W1982525534C519659679 @default.
- W1982525534 hasConceptScore W1982525534C62520636 @default.
- W1982525534 hasIssue "1" @default.
- W1982525534 hasLocation W19825255341 @default.
- W1982525534 hasOpenAccess W1982525534 @default.
- W1982525534 hasPrimaryLocation W19825255341 @default.