gamma-Ray wavelength standard for atomic scales

gamma-Ray wavelength standard for atomic scales

The wavelength of the 57Fe Mössbauer radiation is measured with a relative uncertainty of 0.19 ppm by using almost exact Bragg backscattering from a reference silicon crystal. Its value is determined as lambda(M) = 0.860 254 74(16)x10(-10) m. The corresponding Mössbauer photon energy is E(M) = 14 41...

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Veröffentlicht in:Physical review letters 2000-07, Vol.85 (3), p.495-498
Hauptverfasser: Shvyd'ko, Y V, Lerche, M, Jäschke, J, Lucht, M, Gerdau, E, Gerken, M, Rüter, H D, Wille, H C, Becker, P, Alp, E E, Sturhahn, W, Sutter, J, Toellner, T S
Format: Artikel
Sprache:eng
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Zusammenfassung:The wavelength of the 57Fe Mössbauer radiation is measured with a relative uncertainty of 0.19 ppm by using almost exact Bragg backscattering from a reference silicon crystal. Its value is determined as lambda(M) = 0.860 254 74(16)x10(-10) m. The corresponding Mössbauer photon energy is E(M) = 14 412.497(3) eV. The wavelength of the 57Fe Mössbauer radiation is easily reproducible with an accuracy of at least 10(-11)lambda(M) and could be used as a length standard of atomic dimensions.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.85.495