CALIBRATION OF THE ISOMER SHIFT OF 129I

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Submitted on 1 Jan 1980

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CALIBRATION OF THE ISOMER SHIFT OF 129I

W. Spijkervet, F. Pleiter

To cite this version:

W. Spijkervet, F. Pleiter. CALIBRATION OF THE ISOMER SHIFT OF 129I. Journal de Physique Colloques, 1980, 41 (C1), pp.C1-123-C1-123. �10.1051/jphyscol:1980126�. �jpa-00219694�

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JOURNAL DE PHYSIQUE Colloque Cl

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supplbment au n O 1, Tome 41, janvier 1980, page C1-123

CALIBRATION OF THE IS-R SHIR. OF

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W.J.J. Spijkervet and F . Pleiter

Laboratorhm voor AZgemene Natuurkunde, Universi*y of Groningen, The NetherZands.

Abstract - Radioactive 129m~e was implanted in 6 different transition metals (V, Pe,

W, Au, Pt, PS) and internal conversion electron spectra as well as Mossbauer spectra of the daughter nucleus 1 2 9 ~ were measured. A value b4r2> = 0.018 (4) frn 2 (COP

responding to AR/R = + ^4.1(10) ^x^l^o^-^'⁾ was derived for the change of the mean square charge radius during the 27.8 keV transition in 129~. The consequences of this measu- rement for the calibration constants of the Mgssbauer isomer shift of other isotopes of the 5sp-elements are discussed. A paper about this work is in progress of publica- tion /1/.

References

/1/ Spijkervet, d . Z . J . and Pleiter, F., Hyperfine Interactions, in press.

Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphyscol:1980126