ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The radioactive barium nuclide140Ba (T 1/2=12.8 d) has been separated chemically from fission products of uranium. The scheme of the carrier-free separation is described. The isotope shift in the barium II resonance line 6p 2 P 1/2-6s 2 S 1/2,λ=4934 Å has been measured by means of a pressure scanned Fabry-Pérot interferometer. The resultΔv(140Ba-138Ba)=−39.3 (3.2)mK has been used together with the remeasured isotope shift values of138Ba,136Ba, and134Ba to calculate the change of the mean square radius of the nuclear charge distributionδ〈r 2〉. The results are compared with data for isotonic nuclides of neighbouring elements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01669222
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